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startgame412
September 11th, 2010, 03:21 AM
Hello, I would like to be able to dualboot windows xp and ubuntu while having ubuntu installed on an external usb hard drive. I have shrunk my 500GB external drive which is formatted in NTFS to make room for ubuntu and created a 40GB ext4 partition for ubuntu and a 1.5GB parition for swap space. I proceeded to install ubuntu onto this external usb drive to /dev/sdb2 as well install the grub2 bootloader to /dev/sdb2 because this is where the root parition is. I am atempting to dual boot using GAG, the graphical boot manager. I can boot into widnows xp fin with GAG but when I try to boot ubuntu it says something to the affect of boot sector not found or something similar. GAG recognizes that linux is installed on my external usb drive but strangely it sees it as ext2 partition instead of ext4 which is what I made the partition to be. Can ayone help me? Thanks.

garvinrick4
September 11th, 2010, 03:45 AM
Hello, I would like to be able to dualboot windows xp and ubuntu while having ubuntu installed on an external usb hard drive. I have shrunk my 500GB external drive which is formatted in NTFS to make room for ubuntu and created a 40GB ext4 partition for ubuntu and a 1.5GB parition for swap space. I proceeded to install ubuntu onto this external usb drive to /dev/sdb2 as well install the grub2 bootloader to /dev/sdb2 because this is where the root parition is. I am atempting to dual boot using GAG, the graphical boot manager. I can boot into widnows xp fin with GAG but when I try to boot ubuntu it says something to the affect of boot sector not found or something similar. GAG recognizes that linux is installed on my external usb drive but strangely it sees it as ext2 partition instead of ext4 which is what I made the partition to be. Can ayone help me? Thanks. Do not no what GAG is but I do know you put your grub in sdb not sdb2 for sure. If you have a Live cd (install CD) it can be done with that. Or you can reinstall and in page 8 put grub in sdb
Let us know what you want to do.

startgame412
September 11th, 2010, 04:01 AM
Hello, thanks for the reply. I'm supposed to put grub on the main part of the external drive and not install grub in /dev/sdb2which is where I installed ubuntu. This external usb dirve is just used for data and has no operating systems installed. The way it is set up is as follows according to ubuntu. /dev/sdb represents the usb drive as a whole. /dev/sdb1 is the NTFS partition with music movies phots and documents of mone. /dev/sdb2 is where i installed ubuntu and /dev/sdb3 is the swap partition. I have an ubuntu lucid live cd. How do I fix it using this live cd? Thanks.

startgame412
September 11th, 2010, 04:15 AM
I installed grub to /dev/sdb2 because the graphical boot manager states to install grub to the root partition of the linux installation to be able to boot linux from the graphical boot manager. Thanks.

wilee-nilee
September 11th, 2010, 05:25 AM
So here is a link to the GAG main page , notice the line.
http://gag.sourceforge.net/index.html


GAG doesn't need its own partition. It installs itself in the first track of the hard disk, wich is reserved for these kinds of programs. It can also be instaled on a floppy disk, without using the hard disk.

If I read this correctly, and as garvinrick4 suggested the bootloader goes in the mbr which as you describe your setup is sdb. sdb=first 512 MIB=mbr, the rest is your operating systems. It might help to post the bootscript in my sig or run it for yourself. If you post it put it in code tags, by ticking the # in the reply panel.

Sounds like you have a grub2 reference but here is another.
https://help.ubuntu.com/community/Grub2#Reinstalling%20from%20LiveCD

garvinrick4
September 11th, 2010, 05:25 AM
Hello, thanks for the reply. I'm supposed to put grub on the main part of the external drive and not install grub in /dev/sdb2which is where I installed ubuntu. This external usb dirve is just used for data and has no operating systems installed. The way it is set up is as follows according to ubuntu. /dev/sdb represents the usb drive as a whole. /dev/sdb1 is the NTFS partition with music movies phots and documents of mone. /dev/sdb2 is where i installed ubuntu and /dev/sdb3 is the swap partition. I have an ubuntu lucid live cd. How do I fix it using this live cd? Thanks.

Ok I like to use labels for my partitions so here is what we will do.
Put in the Live Cd and boot off of it and choose to Try Ubuntu not install it.
Open up a program called gparted in System/Administration to gparted.
When it opens it will be a graph in upper right hand corner choose the sdb drive.
Then right click on sdb2 where Ubuntu is installed and go to label and then give it a
label of lets say lucid then hit green arrow to apply it.
Get out of gparted and go to Applications/Accessories to Terminal and open a terminal
give these commands copy and paste easiest.

sudo mkdir /media/lucid
sudo mount /dev/sdb2 /media/lucid
sudo grub-install --recheck --root-directory=/media/lucid /dev/sdb
sudo umount /media/lucid (not a typo)

Now you have put grub into sdb and it looks in sdb2 for boot/grub

THIS IS FOR GRUB2 INTO MBR I HAVE NEVER USED GAG. SHOW THE BOOTSCRIPT THAT
wilee nilee has asked for to make sure there is a partition in sdb2 that holds Ubuntu.

oldfred
September 11th, 2010, 05:33 AM
I do not see where GAG has been updated to know about ext4 partitions. They are modifications of ext2 with improved journaling.

If you really want GAG create a small grub only or boot partition that is ext2 and use that to chainload from GAG. It complicates the boot process as you have to also mount the boot partition for any repairs in addition to root.

Grub2 does not recommend that it be installed to a partition as there is not enough room and it has to use blocklists or hard coded addresses of its boot files. If the files get moved for any reason you will have to reinstall grub.

startgame412
September 11th, 2010, 07:50 AM
Thanks for the replies everyone. I think grub2 and using ext4 file system are my problems because I was able to install grub legacy to my root partition and it still didn't work so looks like it may be more of a problem with graphical boot loader's inability to boot from ext4 file systems. I will try all the suggestions here and post back. Thanks everyone.

TNT1
September 11th, 2010, 08:02 AM
If you are only dual booting, why use GAG? Why not just use Grub only, and let it manage your boot for you?

jocko
September 11th, 2010, 08:16 AM
Absolutely the easiest way to do it with your setup:
1. Set the external drive first in the bios boot order.
2. Install grub 2 to the mbr of the external drive (leaving the windows boot loader fully intact in the mbr of the internal drive).
3. You may need to set grub to re-map the drives in the boot options for windows, to let the internal drive become the first drive only when windows boots.

This way, if you unplug the external drive windows will still boot normally from it's own boot loader.

startgame412
September 11th, 2010, 08:45 AM
Thanks for the replies. I would install grub to the mbr of my windows xp internal drive but if I do that and install ubuntu on my external drive, it leaves me with an unbootable system not being able to boot either windows or ubuntu. I don't think my BIOS has the option to make an external hard drive the first drive. It only has an option to decide where to look first second and etc to where to boot from.

startgame412
September 11th, 2010, 09:21 AM
Looking further into my BIOS, I can infact change the hard drive order to make my external usb drive first and my internal drive second. I tried this setup but I get an unbootable system with puting grub into the mbr sector of the external drive following the instructions provided here. Maybe I should try reinstalling? The external usb drive does not have a windows installation just a windows partition. Could this be why I can't boot from this drive at all? Thanks.

efflandt
September 11th, 2010, 03:25 PM
Sometimes even if you select USB first is boot order, you might have to still press some key during the BIOS splash screen to select booting from something other than an internal hard drive. That may be a virus protection think to not accidentally boot from CD/DVD, etc. The first and only virus I caught was a boot sector virus (Stoned Empire Monk or Monkey) spread by floppy disks before the internet as we know it.

One thing that is still a mystery to me is why some computers have trouble booting the far end of a 500 GB USB drive. I might expect that from my desktop from 2004, which does not even like partitions starting on MB boundaries instead of cylinder boundaries. I had to either create partitions in 9.10 or use partman/alignment=cylinder during 64-bit 10.04 installation for it to boot from 160 GB USB drive. https://wiki.ubuntu.com/LucidLynx/ReleaseNotes#Partition%20alignment%20changes%20may %20break%20some%20systems

But what I do not understand is why my new Dell Studio XPS 8100 i5 cannot boot 64-bit Lucid on the far end of a 500 GB drive with grub in mbr of USB drive, when it boots fine from the 160 GB USB drive or 64 bit Lucid at the far end of its 1 TB internal drive (although, in that case grub2 was on hda4 with standard 64-bit Win7 mbr). So that may be an issue if you get dumped to grub rescue with error: unknown filesystem.

Different work and home laptops from 2006 both boot fine from that 500 GB USB drive.

One thing I have not tried yet is installing Ubuntu on the first partition of the 500 GB USB drive.

startgame412
September 11th, 2010, 08:16 PM
I see. Yes the 40GB partition I have created for Ubuntu is at the nd of this 500GB external usb hard drive. I will try your suggestions and post back here. Thanks for your help.

startgame412
September 12th, 2010, 03:26 AM
I have tried installing ubuntu on the begining of the usb external hard drive even backing up my files on the usb drive to the internal hard drive and making the ext4 parition the first partition. I still cannot boot into ubuntu from this external usb drive wehter I install grub to the MBR of this drive or try to boot ubuntu using GAG which was my goal in the first place. It does not appear that I can boot ubuntu using external drive at all on this comptuer. Anything else I can try? Thanks for all the help everyone.

oldfred
September 12th, 2010, 03:53 PM
From LiveCD run this script so we can see where everything is installed:

Boot Info Script courtesy of forum member meierfra
Page with instructions and download:
http://bootinfoscript.sourceforge.net/
Paste results.txt, then highlight entire file and click on # in edit panel(code tags) to make it easier to read.
Or You can generate the tags first by pressing the # icon in the post's menu and then paste the contents between the generated [ code][ /code] tags.

startgame412
September 13th, 2010, 08:47 PM
Hi, thanks for your help here is the output of boot info script. I have have found out that my computer cannot directly boot from external hard drives but it can do so using a program called plop boot manager by clicking on USB.


#!/bin/bash
VERSION=0.55
DATE="February 15th, 2010"
#to use this script:
#
# sudo bash boot_info_script055.sh
#or
# su -
# bash boot_info_script055.sh
#
#
### last-modified
#
#author Ulrich Meierfrankenfeld (aka meierfra.)
# with contributions from caljohnsmith
# (both members of ubuntuforums.org)
# and Gert Hulselmans
#
#hosted at: http://sourceforge.net/projects/bootinfoscript/
#
#The birth of the boot info script:
# http://ubuntuforums.org/showthread.php?t=837791
#
#Looks at all MBRs and identifies the boot loader.
# For Grub and Supergrub: displays the controlling partition.
# If the MBR is unknown, displays the whole MBR.
#Looks at all partitions:
# Determines their type
# Identifies their boot sectors.
# For grub: displays the controlling partition and the offset
# of the stage2 file as recorded in the boot sector.
# For NTFS and Fat, examines the Boot Parameter Block for errors.
# Identifies the operating system
# Lists boot programs.
# Displays the partition table
# Displays "blkid -c /dev/null"
# Finds boot directories and displays their contents.
# Looks in "/" and "NST" for bootpart codes and displays the offset
# and boot drive it is trying to chainload
# Looks on "/" and "/NST" for stage1 files and displays the offset
# and bootdrive of the stage 2 files is trying to chainload.
# Displays boot configuration files.
# Is able to search LVM partitions if the LVM2 package is install
# ("apt-get install lvm2" in debian based distros)
# Is able to search Linux Software Raid partitions (MD Raids) if
# the "mdadm" package is installed.
# If dmraid is installed, searches all raid drives, detected by dmraid.
#All information is written to the file "RESULTS.txt" in the
# same folder as the script. But when run from /bin, /sbin, /usr/bin,
# or other system folder the file "RESULTS.txt" is written to the
# home directory of the user who runs this script.


###### Display version and date of the script when asked:
# ./boot_info_script -v
# ./boot_info_script -V
# ./boot_info_script --version
if [ x"$1" = x'-v' ] || [ x"$1" = x'-V' ] || [ x"$1" = x'--version' ] ;
then
echo "boot_info_script version $VERSION"
echo "Dated , $DATE"
exit 0
fi


###### Check if all necessary programs are available

Programs="
awk
basename
blkid
cat
dd
dirname
expr
fdisk
filefrag
fold
grep
hexdump
losetup
ls
mkdir
mount
pwd
rm
sed
sort
umount
wc
whoami"

Check_Prog=1;

for Program in $Programs ; do

if ! type $Program > /dev/null 2>&1 ; then
echo \"$Program\" could not be found. >&2
Check_Prog=0;
fi
done

if [ $Check_Prog -eq 0 ];
then
echo "Please install the missing program(s) and run boot_info_script again." >&2
exit 1;
fi;




###### check whether user is root

if [ $(whoami) != "root" ];
then
echo Please use \"sudo\" or become \"root\" to run this script. >&2;
exit 1;
fi;

######## List of folders which might contained files used for chainloading
Boot_Codes_Dir="
/
/NST/
"
################# List of folders whose content will be displayed
################# Since all the important files in these folder are already displayed
################# it doesn't seem necessary to display the contents of these folders.
#Boot_Dir="
# /Boot
# /boot
# /BOOT
# /boot/grub
# /grub
# /ubuntu/disks
# /ubuntu/disks/boot/
# /ubuntu/disks/boot/grub
# /ubuntu/disks/install/boot
# /ubuntu/disks/boot/grub
# /NST
# "


############## List of files whose names will be displayed (if they exists)
Boot_Prog_Normal="
/bootmgr /BOOTMGR
/boot/bcd /BOOT/bcd /Boot/bcd /boot/BCD /BOOT/BCD /Boot/BCD
/Windows/System32/winload.exe /WINDOWS/system32/winload.exe /WINDOWS/SYSTEM32/winload.exe /windows/system32/winload.exe
/Windows/System32/Winload.exe /WINDOWS/system32/Winload.exe /WINDOWS/SYSTEM32/Winload.exe /windows/system32/Winload.exe
/grldr /GRLDR
/ntldr /NTLDR
/NTDETECT.COM /ntdetect.com
/NTBOOTDD.SYS /ntbootdd.sys
/wubildr.mbr /ubuntu/winboot/wubildr.mbr
/wubildr /ubuntu/winboot/wubildr
/ubuntu/disks/root.disk
/ubuntu/disks/home.disk
/ubuntu/disks/swap.disk
/core.img /grub/core.img /boot/grub/core.img
/boot/map /map
/DEFAULT.MNU /default.mnu
/IO.SYS /io.sys
/MSDOS.SYS /msdos.sys
/COMMAND.COM /command.com
"
Boot_Prog_Fat="
/bootmgr
/boot/bcd
/Windows/System32/winload.exe
/grldr
/ntldr
/NTDETECT.COM
/NTBOOTDD.SYS
/wubildr.mbr
/wubildr
/ubuntu/winboot/wubildr
/ubuntu/winboot/wubildr.mbr
/ubuntu/disks/root.disk
/ubuntu/disks/home.disk
/ubuntu/disks/swap.disk
/core.img /grub/core.img /boot/grub/core.img
/boot/map /map
/DEFAULT.MNU
/IO.SYS
/MSDOS.SYS
/COMMAND.COM
"



############### List of files whose contents will be displayed.
Boot_Files_Normal="
/boot/grub/menu.lst /grub/menu.lst /NST/menu.lst /menu.lst
/grub.cfg /grub/grub.cfg /boot/grub/grub.cfg
/ubuntu/disks/boot/grub/menu.lst /ubuntu/disks/install/boot/grub/menu.lst /ubuntu/winboot/menu.lst
/boot/grub/grub.conf /grub/grub.conf /grub.conf
/boot.ini /BOOT.INI
/etc/fstab
/etc/lilo.conf /lilo.conf
"

Boot_Files_Fat="
/boot/grub/menu.lst /grub/menu.lst /NST/menu.lst /menu.lst
/grub.cfg /grub/grub.cfg /boot/grub/grub.cfg
/ubuntu/disks/boot/grub/menu.lst /ubuntu/disks/install/boot/grub/menu.lst /ubuntu/winboot/menu.lst
/boot/grub/grub.conf /grub/grub.conf /grub.conf
/boot.ini
/etc/fstab
/etc/lilo.conf /lilo.conf
"

############### List of files whose end point (in GB) will be displayed.
GrubError18_Files="
boot/grub/menu.lst grub/menu.lst menu.lst /NST/menu.lst
ubuntu/disks/boot/grub/menu.lst
boot/grub/grub.conf grub/grub.conf grub.conf
grub.cfg grub/grub.cfg boot/grub/grub.cfg
core.img grub/core.img boot/grub/core.img
boot/grub/stage2 grub/stage2 stage2
boot/vmlinuz* vmlinuz* ubuntu/disks/boot/vmlinuz*
boot/initrd* initrd* ubuntu/disks/boot/initrd*
boot/kernel*.img
initramfs* boot/initramfs*
"


####### Directory containing the script.

Dir=$(cd "$(dirname "$0")";pwd);

# Set $Dir to the home folder of the current user if the script is in one of the
# system folders
# This allows placement of the script in /bin, /sbin, /usr/bin, ...
# while still having a normal location to write the output file.
for systemdir in /bin /boot /cdrom /dev /etc /lib /lost+found /opt /proc /sbin /selinux /srv /sys /usr /var; do
if [ $(expr "$Dir" : $systemdir) -ne 0 ]; then
Dir="$HOME"
break
fi
done

######## To avoid overwriting existing files, look for a non-existing file
######## RESULT.txt RESULTS1.txt RESULTS2.txt ...

LogFile="${Dir}/RESULTS"
while ( [ -e "${LogFile}${j}.txt" ] )
do
if [ "j" = "" ]; then j=0; fi;
j=$((j+1));
wait;
done
LogFile="${LogFile}${j}.txt" #### The RESULTS file.

###### Redirect stdout to RESULT File
#exec 6>&1
#exec > "$LogFile"

########### Create previously non-existing folder of the form
########## /tmp/BootInfo /tmp/BootInfo1, /tmp/BootInfo2 ...

Folder=/tmp/BootInfo
i=0;
while (! mkdir ${Folder}${i} 2>/dev/null)
do
i=$((i+1));
wait;
done
Folder=${Folder}${i}

cd $Folder
Log=$Folder/Log #File to record the summary.
Log1=$Folder/Log1 # Most of the information which is not part of
#the summary is recorded in this file.
Error_Log=$Folder/Error_Log # File to catch all unusal Standar Errors
Trash=$Folder/Trash # File to catch all usual Standard Errors
# these messagges will not be included in the RESULTS
Mount_Error=$Folder/Mount_Error # File to catch Mounting Errors
Unknown_MBR=$Folder/Unknown_MBR # File to record all unknown MBR and Boot sectors.
Tmp_Log=$Folder/Tmp_Log # File to temporarily hold some information.
PartitionTable=$Folder/PT # File to store the Partition Table
FakeHardDrives=$Folder/FakeHD # File to list devices which seem to have no corresponding drive.
BLKID=$Folder/BLKID # File to store the output of blkid
exec 2>$Error_Log #Redirect all standard error to the file Error_Log

All_Hard_Drives=$(ls /dev/hd? /dev/sd? 2>>$Trash ); ### List of all Hard drives.


if type dmraid >>$Trash 2>>$Trash;
then
InActiveDMRaid=$(dmraid -si -c);
if [ "$InActiveDMRaid" = "no raid disks" ];
then
InActiveDMRaid="";
fi;
if [ "$InActiveDMRaid" != "" ];
then
dmraid -ay $InActiveDMRaid >>$Trash;
fi;
if [ "$(dmraid -sa -c)" != "no raid disks" ];
then
All_DMRaid=$(dmraid -sa -c|awk '{print "/dev/mapper/"$0}');
All_Hard_Drives=${All_Hard_Drives}" "${All_DMRaid};
fi;
fi;

####Arrays to hold information about Partitions: name, starting sector, ending sector, size in sector, Partition Type, Filesystem typ, UUID, Kind(Logical, Primary, Extended), HardDrive, boot flag, parent (for logical partitions), label, system(the partition id according the partition table), the device associate to the partition.

declare -a NamesArray StartArray EndArray SizeArray TypeArray FileArray UUIDArray KindArray DriveArray BootArray ParentArray LabelArray SystemArray DeviceArray


#####Arrays to hold information about the harddrives.
declare -a HDName FirstPartion LastPartition HDSize HDMBR HDHead HDTrack HDCylinder HDPT HDStart HDEnd HDUUID;

####Array for Hard drives formated as Filesystem
declare -a FilesystemDrives;


PI=-1 ## Counter for the identification number of a partition. (each partition gets unique number)
HI=0 ## Counter for the identification number of a hard drive. (each hard drive gets unique number)
PTFormat='%-10s %4s%14s%14s%14s %3s %s\n'; ### standard format to use for Partition table,


#### fdisk -s seems to malfunction sometimes. So use sfdisk -s if available
function fdisks (){
if type sfdisk >>$Trash 2>>$Trash
then
sfdisk -s "$1" 2>>$Trash;
else
fdisk -s "$1" 2>>$Trash;
fi;
}



##### A function which checks whether a file is on a mounted partition
MountPoints=$(mount | grep -e ^/dev |awk '{print $3}' |grep -v ^/$); ##list of mountpoints for devices

function FileNotMounted (){
local File=$1 curmp=$2;
for mp in $MountPoints;
do
if [ $(expr match "$File" "$mp""/" ) -ne 0 ] && [ "$mp" != "$curmp" ]
then
return 1;
fi;
done;
return 0;
}

##### A function which converts the two digit hexcode of a partition type
# The following list is taken from sfdisk -T and
# http://www.win.tue.nl/~aeb/partitions/partition_types-1.html
# work in progress
function HexToSystem () {
local type=$1 system
case $type in
0) system="Empty";;
1) system="FAT12";;
2) system="XENIX root";;
3) system="XENIX usr";;
4) system="FAT16 <32M";;
5) system="Extended";;
6) system="FAT16";;
7) system="HPFS/NTFS";;
8) system="AIX";;
9) system="AIX bootable";;
a) system="OS/2 Boot Manager";;
b) system="W95 FAT32";;
c) system="W95 FAT32 (LBA)";;
e) system="W95 FAT16 (LBA)";;
f) system="W95 Ext d (LBA)";;
10) system="OPUS";;
11) system="Hidden FAT12";;
12) system="Compaq diagnostics";;
14) system="Hidden FAT16 <32M";;
16) system="Hidden FAT16";;
17) system="Hidden HPFS/NTFS";;
18) system="AST SmartSleep";;
1b) system="Hidden W95 FAT32";;
1c) system="Hidden W95 FAT32 (LBA)";;
1e) system="Hidden W95 FAT16 (LBA)";;
24) system="NEC DOS";;
27) system="Hidden HPFS/NTFS";;
32) system="NOS";;
35) system="JFS on OS2";;
38) system="Theos";;
39) system="Plan 9";;
3a) system="Theos";;
3b) system="Theos Extended";;
3c) system="PartitionMagic recovery";;
40) system="Venix 80286";;
41) system="PPC PReP Boot";;
42) system="SFS";;
45) system="Boot-US boot manager";;
4d) system="QNX4.x";;
4e) system="QNX4.x 2nd part";;
4f) system="QNX4.x 3rd part";;
50) system="OnTrack DM";;
51) system="OnTrack DM6 Aux1";;
52) system="CP/M";;
53) system="OnTrack DM6 Aux3";;
54) system="OnTrackDM6";;
55) system="EZ-Drive";;
56) system="Golden Bow";;
5c) system="Priam Edisk";;
61) system="SpeedStor";;
63) system="GNU HURD or SysV";;
64) system="Novell Netware 286";;
65) system="Novell Netware 386";;
70) system="DiskSecure Multi-Boot";;
75) system="PC/IX";;
80) system="Old Minix";;
81) system="Minix / old Linux";;
82) system="Linux swap / Solaris";;
83) system="Linux";;
84) system="OS/2 hidden C: drive";;
85) system="Linux extended";;
86) system="NTFS volume set";;
87) system="NTFS volume set";;
88) system="Linux plaintext";;
8e) system="Linux LVM";;
93) system="Amoeba/Accidently Hidden Linux";;
94) system="Amoeba BBT";;
9f) system="BSD/OS";;
a0) system="IBM Thinkpad hibernation";;
a5) system="FreeBSD";;
a6) system="OpenBSD";;
a7) system="NeXTSTEP";;
a8) system="Darwin UFS";;
a9) system="NetBSD";;
ab) system="Darwin boot";;
af) system="HFS";;
b0) sytem="Boot Star";;
b1 | b2 | b3 | b4 | b6) system="SpeedStor";;
b7) system="BSDI fs";;
b8) system="BSDI swap";;
bb) system="Boot Wizard hidden";;
bc) system="Acronis BackUp";;
be) system="Solaris boot";;
bf) system="Solaris";;
c0) system="CTOS";;
c1) system="DRDOS/sec (FAT-12)";;
c2) system="Hidden Linux/PowerBoot";;
c3) system="Hidden Linux Swap /PowerBoot";;
c4) system="DRDOS/sec (FAT-16 < 32M)";;
c6) system="DRDOS/sec (FAT-16)";;
c7) system="Syrinx";;
cb) system="DR-DOS FAT32 (CHS)";;
cc) system="DR-DOS FAT32 (LBA)";;
cd) system="CTOS Memdump?";;
ce) system="DR-DOS FAT16X (LBA)";;
cf) system=" DR-DOS EXT DOS (LBA)";;
d0) system=" REAL/32 secure big partition";;
da) system="Non-FS data";;
db) system="CP/M / CTOS / ...";;
dd) system="Dell Media Direct";;
de) system="Dell Utility";;
df) system="BootIt";;
e1) system="DOS access";;
e3) system="DOS R/O";;
e4) system="SpeedStor";;
eb) system="BeOS fs";;
ee) system="GPT";;
ef) system="EFI (FAT-12/16/32)";;
f0) system="Linux/PA-RISC boot";;
f1) system="SpeedStor";;
f4) system="SpeedStor";;
f2) system="DOS secondary";;
fb) system="VMware VMFS";;
fc) system="VMware VMKCORE";;
fd) system="Linux raid autodetect";;
fe) system="LANstep";;
ff) system="BBT";;
*) system="Unknown";;
esac;
echo $system;
}

##### Function to convert GPT's Partition Type.
#### ABCDEFGH-IJKL-MNOP-QRST-UVWXYZabcdef is stored as
#### GHEFCDAB-KLIJ-OPMN-QRST-UVWXYZabcdef (without the dashes)
function UUIDToSystem() {
local type=$1 system
case $type in
00000000000000000000000000000000) system="Empty";;
41ee4d02e733d3119d690008c781f39f) system="MBR partition scheme";;
28732ac11ff8d211ba4b00a0c93ec93b) system="System/Boot Partition";;
a2a0d0ebe5b9334487c068b6b72699c7) system="Linux or Data";;
6dfd5706aba4c44384e50933c84b4f4f) system="Linux Swap";;
16e3c9e35c0bb84d817df92df00215ae) system="Microsoft Windows";;
79d3d6e607f5c244a23c238f2a3df928) system="LVM";;
005346480000aa11aa1100306543ecac) system="HFS+";;
4861682149646f6e744e656564454649) system="Bios Boot Partition";;
*) system="-";
echo Unknown GPT Partiton Type>>$Unknown_MBR;
echo $type >>$Unknown_MBR;;
esac;
echo $system;
}

##### Function which insert a comma every third digit of a number
function InsertComma () {
echo $1 |sed -e :a -e 's/\(.*[0-9]\)\([0-9]\{3\}\)/\1,\2/;ta'
}

##### Function to read 4 bytes starting at $1 of device $2 and convert to decimal.
function Read4Bytes () {
echo $(hexdump -v -s $1 -n 4 -e '4 "%u"' $2);
}

##### Function to read 8 bytes starting at $1 of device $2 and convert to decimal.
function Read8Bytes () {
local start=$1 device=$2;
local first4 second4;
first4=$(hexdump -v -s $start -n 4 -e '4 "%u"' $device);
second4=$(hexdump -v -s $((start+4)) -n 4 -e '4 "%u"' $device);
echo $((second4*1073741824+first4));
}

#### Functions to pretty print blkid output ######
BlkidFormat='%-16s %-38s %-10s %-30s\n'
BlkidTag (){
echo $(blkid -c /dev/null -s $2 -o value $1 2>>$Trash)
}

PrintBlkid (){
local part=$1;
if [ "$(blkid -c /dev/null $part 2>$Tmp_Log)" != "" ];
then
printf "$BlkidFormat" "$part" "$(BlkidTag $part UUID)" "$(BlkidTag $part TYPE)" "$(BlkidTag $part LABEL)">>$BLKID;
else blkid -p "$part" 2>&1 |grep "$part" >>$BLKID; #blkid -p is not avaible all all systems. This contructs makes sure the "usage" message is not displayed, but catches the "ambivalent" error.
fi;
}


## Reads and display the a partition table of an extended partitons ###########
############# and check the partition check for errors #####################
# This function can be applied iteratively to read the extended partiton table
# Variable 1: HI of hard drive
# Variable 2: Start Sector of the extended Partition,
# Variable 3: Number of partitions in table (4 for regular PT, 2 for logical
# Variable 4: File for storing the partitions table.
# Variable 5: Format to use for displaying the partition table.
# Variable 6: PI of the primary extended partition containing the extended partition.
# ( equals "" for hard drive)
# Variable 7: Last Linux Index assigned (the number in sdXY).

ReadPT (){
local HI=$1 StartEx=$2 N=$3 PT_file=$4 format=$5 EPI=$6 Base_Sector
local LinuxIndex=$7 boot size start end type drive system;
local i=0 boot_hex label limit MBRSig
drive=${HDName[$HI]};
limit=${HDSize[$HI]};
$(dd if=$drive skip=$StartEx of=$Tmp_Log count=1 2>>$Trash);
MBRSig=$(hexdump -v -s 510 -n 2 -e '"%x"' $Tmp_Log);
[[ "$MBRSig" != "aa55" ]] && echo Invalid MBR Signature found >> $PT_file;
if [[ $StartX -lt $limit ]];
then # set Base_Sector to 0 for HardDrive, and to the start
# sector of primary extended partition otherwise
[[ "$EPI" = "" ]] && Base_Sector=0 || Base_Sector=${StartArray[$EPI]}
for (( i=0; i < N; i++ ));
do
$(dd if=$drive skip=$StartEx of=$Tmp_Log count=1 2>>$Trash);
boot_hex=$(hexdump -v -s $((446+16*i)) -n 1 -e '"%02x"' $Tmp_Log)
case $boot_hex in
00) boot=" ";;
80) boot="* ";;
*) boot="?";;
esac;
start=$(hexdump -v -s $((454+16*i)) -n 4 -e '4 "%u"' $Tmp_Log);
size=$(hexdump -v -s $((458+16*i)) -n 4 -e '4 "%u"' $Tmp_Log);
type=$(hexdump -v -s $((450+16*i)) -n 1 -e '4 "%x"' $Tmp_Log);
if [[ $size != 0 ]];
then
if [[ ( "$type" = "5" || "$type" = "f" ) && $Base_Sector != 0 ]];
then
start=$((start+Base_Sector)) #start sector of an extended partition is
# relative to the start sector of an primary extended partition.
if [[ $i = 0 ]];
then
echo "Extended partition linking to another extended partition" >>$PT_file;
fi;
ReadPT $HI $start 2 $PT_file "$format" $EPI $LinuxIndex;
else
((PI++))
if [[ "$type" = "5" || "$type" = "f" ]];
then
KindArray[$PI]="E";
else
start=$((start+StartEx)); #Start sector of a logical partition is
# relative to the start sector of directly assocated extented partition.
[[ $Base_Sector = 0 ]] && KindArray[$PI]="P" || KindArray[$PI]="L";
fi;
LinuxIndex=$((LinuxIndex+1));
end=$((start+size-1));
[[ "${HDPT[$HI]}" = "BootIt" ]] && label="${NamesArray[$EPI]}""_" || label=$drive;
system=$(HexToSystem $type)

printf "$format" "$label$LinuxIndex" "$boot" $(InsertComma $start) "$(InsertComma $end)" "$(InsertComma $size)" "$type" "$system" >> $PT_file;
NamesArray[$PI]="$label"$LinuxIndex;
StartArray[$PI]=$start;
EndArray[$PI]=$end;
TypeArray[$PI]=$type;
SystemArray[$PI]="$system";
SizeArray[$PI]=$size;
BootArray[$PI]="$boot";
DriveArray[$PI]=$HI;
ParentArray[$PI]=$EPI;
( [[ "$EPI" = "" ]] || [[ ${DeviceArray[$EPI]} != "" ]] ) && DeviceArray[$PI]=$drive$LinuxIndex;

if [[ "$type" = "5" || "$type" = "f" ]];
then
ReadPT $HI $start 2 $PT_file "$format" $PI 4;
fi;
fi;

elif [[ $Base_Sector != 0 && $i = 0 ]];
then
echo "Empty Partition">>$PT_file;
else
LinuxIndex=$((LinuxIndex+1));
fi;
done;
else
echo "EBR refers to a location outside the Hard drive" >>$PT_file;
fi;
}
############### Read partition table of type GPT (GUID, EFI)##########################
###### Variable 1: HI of hard drive
###### Variable 2: File to store the PartitionTable
function ReadEFI() {
local HI=$1 drive file=$2 Size N=0 i=0 format Label PRStart Start End Type Size System;
drive="${HDName[$HI]}";
format='%-10s %14s%14s%14s %s\n';
printf "$format" Partition Start End Size System >> $file;
HDStart[$HI]=$(Read8Bytes 552 $drive);
HDEnd[$HI]=$(Read8Bytes 560 $drive);
HDUUID[$HI]=$(hexdump -v -s 568 -n 16 -e '/1 "%02x"' $drive);
PRStart=$(Read8Bytes 584 $drive);
N=$(Read4Bytes 592 $drive);
PRStart=$((PRStart*512));
PRSize=$(Read4Bytes 596 $drive);
for (( i = 0; i< N; i++ ))
do
Type=$(hexdump -v -s $((PRStart+PRSize*i)) -n 16 -e '/1 "%02x"' $drive);
if [ "$Type" != "00000000000000000000000000000000" ];
then
((PI++))
Start=$(Read8Bytes $((PRStart+32+PRSize*i)) $drive);
End=$(Read8Bytes $((PRStart+40+PRSize*i)) $drive);
Size=$((End-Start+1));
System=$(UUIDToSystem $Type);
Label=$drive$((i+1));
printf "$format" "$Label" "$(InsertComma $Start)" "$(InsertComma $End)" "$(InsertComma $Size)" "$System" >>$file;
NamesArray[$PI]=$Label;
DeviceArray[$PI]=$Label;
StartArray[$PI]=$Start;
TypeArray[$PI]=$Type;
SizeArray[$PI]=$Size;
SystemArray[$PI]=$System;
EndArray[$PI]=$End;
DriveArray[$PI]=$HI;
KindArray[$PI]="P";
ParentArray[$PI]="";
fi;
done;
}

############### Read the Master Partition Table of BootIt NG##########################
###### Variable 1: HI of hard drive
###### Variable 2: File to store the MPT.
function ReadEMBR() {
local HI=$1 drive MPT_file=$2 Size N=0 i=0 BINGIndex Label Start End Type BINGUnknown format Size System StoredPI FirstPI=FirstPartition[$1] LastPI=$PI New;
drive="${HDName[$HI]}";
format='%-18s %4s%14s%14s%14s %3s %-15s %3s %2s\n';
printf "$format" Partition Boot Start End Size Id System Ind "?">> $MPT_file;
N=$(hexdump -v -s 534 -n 1 -e '"%u"' $drive);
while [[ $i -lt "$N" ]]
do
New=1;
BINGUnknown=$(hexdump -v -s $((541+28*i)) -n 1 -e '"%x"' $drive)
Start=$(hexdump -v -s $((542+28*i)) -n 4 -e '4 "%u"' $drive);
End=$(hexdump -v -s $((546+28*i)) -n 4 -e '4 "%u"' $drive);
BINGIndex=$(hexdump -v -s $((550+28*i)) -n 1 -e '"%u"' $drive);
Type=$(hexdump -v -s $((551+28*i)) -n 1 -e '"%x"' $drive);
Size=$((End-Start+1));
Label=$(hexdump -v -s $((552+28*i)) -n 15 -e '"%_u"' $drive| sed -e s/nul[^$]*//);
System=$(HexToSystem $Type);
printf "$format" "$Label" "-" "$(InsertComma $Start)" "$(InsertComma $End)" "$(InsertComma $Size)" "$Type" "$System" "$BINGIndex" "$BINGUnknown">>$MPT_file;
StoredPI=$PI;
for ((j = FirstPI; j<=LastPI; j++ ));
do
if (( ${StartArray[$j]} == $Start ));
then
PI=$j;
New=0;
break;
fi;
done;

if (( $New == 1 ));
then
((PI++));
StoredPI=$PI;
StartArray[$PI]=$Start;
TypeArray[$PI]=$Type;
SizeArray[$PI]=$Size;
SystemArray[$PI]=$System;
EndArray[$PI]=$End;
DriveArray[$PI]=$HI;
fi;
NamesArray[$PI]=$Label;

if [[ $Type = "f" || $Type = "5" ]];
then
KindArray[$PI]="E";
ParentArray[$PI]=$PI;
ReadPT $HI $Start 2 $MPT_file "$format" $PI 4 ;
else
KindArray[$PI]="P";
ParentArray[$PI]="";
fi;
PI=$StoredPI;
((i++));
done;
}

################# Check partition table for errors ################################
###
### This function checks whether any two partitions overlap
### and the logical partitions are inside the extended partition.
### Variable 1: PI of First partition to consider
### Variable 2: PI of Last Partition to consider
### Variable 3: File for the error messages.
### Variable 4: HI of containing hard drive
CheckPT () {
local first=$1 last=$2 file=$3; hi=$4;
local Si Ei Sj Ej Ki Kj i j k cyl track head cyl_bound sec_bound
cyl=${HDCylinder[$hi]};
track=${HDTrack[$hi]};
head=${HDHead[$hi]};
cyl_bound=$((cyl*track*head));
sec_bound=${HDSize[$hi]};
for (( i=$first; i <= last; i++ ));
do
Si=${StartArray[$i]};
Ei=${EndArray[$i]};
Ki=${KindArray[$i]};
Ni=${NamesArray[$i]};
if [[ "$Ei" -gt "$sec_bound" ]];
then
echo $Ni ends after the last sector of ${HDName[$hi]}>>$file;
elif [[ "$Ei" -gt "$cyl_bound" ]]
then
echo $Ni ends after the last cylinder of ${HDName[$hi]}>>$Trash;
fi;
if [[ $Ki = "L" ]];
then
k=${ParentArray[$i]};
Sk=${StartArray[$k]};
Ek=${EndArray[$k]};
Nk=${NamesArray[$k]};
[[ $Si -le $Sk || $Ei -gt $Ek ]] && echo the logical partition $Ni is not contained in the extended partition $Nk>>$file;
fi;
for (( j = i+1; j <= last; j++ ));
do
Sj=${StartArray[$j]};
Ej=${EndArray[$j]};
Kj=${KindArray[$j]};
Nj=${NamesArray[$j]};
[[ !( ( $Ki = "L" && $Kj = "E" ) || ( $Ki = "E" && $Kj = "L" ) ) && ( ( $Si -lt $Sj && $Sj -lt $Ei ) || ($Sj -lt $Si && $Si -lt $Ej ) )]] && echo $Ni overlaps with $Nj >>$file;
done;
done
}

################################################## ###########################################
########## Determine the embeded location of stage 2 in a stage 1 file,
########## look for the stage 2 and, if found, determine the
#########$ the location and the path of the embedded menu.lst

stage2_loc (){
local stage1=$1 hi;
offset=$(hexdump -v -s 68 -n 4 -e '4 "%u"' $stage1 2>>$Trash);
dr=$(hexdump -v -s 64 -n 1 -e '"%d"' $stage1);
pa="T"
Grub_Version="";
for hi in ${!HDName[@]};
do
hdd=${HDName[$hi]};
if [ $offset -lt ${HDSize[hi]} ];
then
tmp=$(dd if=$hdd skip=$offset count=1 2>>$Trash | hexdump -v -n 4 -e '"%x"');
if [[ "$tmp" = 3be5652 || "$tmp" = bf5e5652 ]]; ### If stage2 files was found.
then
dd if=$hdd skip=$((offset+1)) count=1 of=$Tmp_Log 2>>$Trash;
pa=$(hexdump -v -s 10 -n 1 -e '"%d"' $Tmp_Log);
stage2_hdd=$hdd;
Grub_String=$(hexdump -v -s 18 -n 94 -e '"%_u"' $Tmp_Log);
Grub_Version=$(echo $Grub_String|sed -e s/nul[^$]*//);
BL=$BL$Grub_Version;
menu=$(echo $Grub_String |sed -e s/[^\/]*// -e s/nul[^$]*//);
menu=${menu%% *};
fi;
fi;
done;
dr=$((dr-127))
Stage2_Msg=$(echo looks at sector $offset )
if [ "$dr" = 128 ];
then
Stage2_Msg=$(echo $Stage2_Msg of the same hard drive)
else
Stage2_Msg=$(echo $Stage2_Msg on boot drive \#$dr)
fi;
Stage2_Msg=$(echo $Stage2_Msg for the stage2 file);

if [ "$pa" = "T" ] #### no stage 2 file found.
then
Stage2_Msg=$(echo $Stage2_Msg, but no stage2 files can be found at this location.);
else
pa=$((pa+1))
Stage2_Msg=$(echo $Stage2_Msg. A stage2 file is at this location on $stage2_hdd. Stage2 looks on )
if [ "$pa" = 256 ];
then
Stage2_Msg=$(echo $Stage2_Msg the same partition)
else
Stage2_Msg=$(echo $Stage2_Msg partition \#$pa )
fi;
Stage2_Msg=$(echo $Stage2_Msg for $menu.)
fi;
}
################################################## #####################################

################################################## ###########################################
########## Determine the embeded location of core.img for a Grub2 boot.img file,
########## look for the core.img and, the path of the Grub Folder.
################################################## ###########################

core_loc (){
local stage1=$1 grub2_version=$2 hi offset_loc dr_loc dir_loc;
case $grub2_version in
1.96) offset_loc=68; dr_loc=76; dir_loc=32;;
1.97) offset_loc=92; dr_loc=91; dir_loc=28;;
esac;
offset=$(hexdump -v -s $offset_loc -n 4 -e '4 "%u"' "$stage1" 2>>$Trash);
dr=$(hexdump -v -s $dr_loc -n 1 -e '"%d"' "$stage1");
pa="T"
for hi in ${!HDName[@]};
do
hdd=${HDName[$hi]};
if [ $offset -lt ${HDSize[hi]} ];
then
tmp=$(dd if="$hdd" skip=$offset count=1 2>>$Trash | hexdump -v -n 4 -e '"%x"');
if [ "$tmp" = 1bbe5652 ]; ### If conf.img file was found.
then
dd if=$hdd skip=$((offset+1)) count=1 of=$Tmp_Log 2>>$Trash;
pa=$(hexdump -v -s 20 -n 1 -e '"%d"' $Tmp_Log);
core_hdd=$hdd;
Grub_String=$(hexdump -v -s $dir_loc -n 64 -e '"%_u"' $Tmp_Log);
Core_Dir=$(echo $Grub_String | sed s/nul[^$]*//);
fi;
fi;
done;
Core_Msg=$(echo looks at sector $offset of the same hard drive for core.img)

if [ "$pa" = "T" ]
then #### core.img not found.
Core_Msg=$(echo $Core_Msg, but core.img can not be found at this location.);
else #### core.img found.
pa=$((pa+1))
Core_Msg=$(echo $Core_Msg, core.img is at this location on $core_hdd and looks )
if [ "$pa" = 255 ];
then
Core_Msg=$(echo $Core_Msg for $Core_Dir.)
else
Core_Msg=$(echo $Core_Msg on partition \#$pa for $Core_Dir.)
fi;

fi;
}
################################################## #####################################

############### Get_Partition_Info search a partition for information relevant for booting.
####Variables:
#### log $1 local version of RESULT.txt#### log1 $2 local version of log1
#### part $3 device for the partition
#### name $4 descriptive name for the partition
#### mountname $5 path where partition will be mounted.
### kind $6 kind of the partition
### start $7 starting sector of the partition
### end $8 ending sector of the partition
### system $9 system of the partition
### pi $10 pi of the partition, (equal to "" if not a regular partition.
Get_Partition_Info(){
local Log="$1" Log1="$2" part="$3" name="$4" mountname="$5" kind="$6" start="$7" end="$8" system="$9" pi="${10}";
local size=$((end-start)) BST="" BSI="" BFI="" OS="" BootFiles="";


echo "Searching $name for information... ";
PrintBlkid $part;
type=$(BlkidTag $part TYPE); ##### type of file system according to blkid

[[ "$system" == "Bios Boot Partition" ]] && type="Bios Boot Partition"
[[ $pi != "" ]] && FileArray[$pi]=$type;
echo "$name: __________________________________________________ _______________________" >>"$Log"; echo>> "$Log"
mkdir -p "$mountname" #### Directory where the partition will be mounted.
if [[ "$kind" = "E" && "$type" = "" ]] ; #### Check for extended partion.
then
type="Extended Partition";
cat $Tmp_Log>>$Trash; ### Don't display the error message from blkid for extended partition
else
cat $Tmp_Log>>$Error_Log
fi;
echo " File system: "$type>>"$Log"; ### Display the File System Type


Bytes8081=$(hexdump -v -s 128 -n 2 -e '/1 "%x"' $part) #### Use bytes 0x80,81 to idendtify Boot sectors
case $Bytes8081 in
10f) BST="HP Recovery";;
19d) BST="BSD4.4: Fat32";;
211) BST="Dell Utility: Fat16";;
734) BST=Dos_1.0;;
745) BST="Vista: Fat 32";;
89e) BST="MSDOS5.0: Fat 16";;
8cd) BST="Windows XP";;
488) BST="Grub 2's core.img";;
b60) BST="Dell Utility: Fat16";;
bd0) BST="MSWIN4.1: Fat 32";;
e00) BST="Dell Utility: Fat16";;
2d5e) BST=Dos_1.1;;
3a5e) BST="Recovery:Fat 32";;
4445) BST="DEll Restore: Fat32";;
55aa) BST="Windows Vista/7";;
55cd) BST="Fat32";;
6616) BST=Fat16;;
696e) BST=Fat16;;
6974) BST="BootIt: Fat16";;
6f65) BST="BootIt: Fat16";;
6f74) BST=Fat32;;
6f6e) BST="-";; #MSWIN4.1: Fat 32"
7815) BST=Fat32;;
7cc6) BST="MSWIN4.1: Fat 32";;
# 7cc6) BST=Win_98;;
8a56) BST="Acronis SZ: Fat32";;
8ec0) BST="Windows XP";;
8ed0) BST="DEll Recovery: Fat32";;
b6d1) BST="Windows XP: Fat32";;
e2f7) BST="Fat32, Non Bootable";;
e9d8) BST="Windows Vista/7";;
fa33) BST="Windows XP";;
####### if Grub, Grub 2 or Lilo is in the boot sector, ########
####### investigate the embedded information ########
48b4) BST="Grub 1.96";
core_loc $part 1.96;
BSI=$(echo $BSI Grub 1.96 is installed in the boot sector of $name and $Core_Msg);;
7c3c) BST="Grub 2";
core_loc $part 1.97;
BSI=$(echo $BSI Grub 2 is installed in the boot sector of $name and $Core_Msg);;
aa75 | 5272) BST=Grub;
stage2_loc $part;
BSI=$(echo $BSI Grub $Grub_Version is installed in the boot sector of $name and $Stage2_Msg);;
############# If Lilo look for map file ##############################################
8053) BST=LILO;
offset=$(hexdump -v -s 32 -n 4 -e '"%u"' $part); ### 0x20-23 contains the offset
##### of /boot/map
BSI=$(echo $BSI" "LILO is installed in boot sector of $part and looks at sector $offset of $drive for the \"map\" file,);
if [ $offset -lt $size ]; ### check whether offset
#### is on the had drive.
then
tmp=$(dd if=$drive skip=$offset count=1 2>>$Trash | hexdump -v -s 508 -n 4 -e '"%_p"');
if [[ "$tmp" = "LILO" ]];
then
BSI=$(echo $BSI" "and the \"map\" file was found at this location.);
else
BSI=$(echo $BSI" "but the \"map\" file was not found at this location.);
fi;
else
BSI=$(echo $BSI" "but the \"map\" file was not found at this location.);
fi;;
################################################## #######################################
00) sig2=$(hexdump -v -s 128 -n 2 -e '/1 "%x"' $part)
if [ "$sig2" = 00 ]; #### If the first two bytes are zero, the boot sector does not contain any boot loader.
then
BST="-";
else ###### Otherwise, display the boot sector, so we that we might identify it and add it to the list of known boot sectors.
BST="Unknown"
echo "Unknown BootLoader on $name" >> $Unknown_MBR;
echo >> $Unknown_MBR;
hexdump -n 512 -C $part >> $Unknown_MBR;
echo >> $Unknown_MBR;
fi;;
*) BST="Unknown"
echo "Unknown BootLoader on $name" >> $Unknown_MBR;
echo >> $Unknown_MBR;
hexdump -n 512 -C $part >> $Unknown_MBR;
echo >> $Unknown_MBR;
esac;
###################### Display the boot sector type.
echo " Boot sector type: "$BST>>"$Log"

####################### Investigate the Boot Parameter Block of an NTFS partition.

if [[ "$type" = "ntfs" ]]
then
offset=$(hexdump -v -s 28 -n 4 -e '"%u"' $part);
BPB_Part_Size=$(hexdump -v -s 40 -n 4 -e '"%u"' $part)
Comp_Size=$(( (BPB_Part_Size - size)/256 ))
SectorsPerCluster=$(hexdump -v -s 13 -n 1 -e '"%d"' $part);
MFT_Cluster=$(hexdump -v -s 48 -n 4 -e '"%d"' $part);
MFT_Sector=$(( MFT_Cluster * SectorsPerCluster ));
# Track=$(hexdump -v -s 24 -n 2 -e '"%u"' $part)'' ### Number of sectors per track.
# Heads=$(hexdump -v -s 26 -n 2 -e '"%u"' $part)'' ### Number of heads
# if [[ "$Heads" != 255 || "$Track" != 63 ]]
# then
# BSI=$(echo $BSI" "Geometry: $Heads Heads and $Track sectors per Track.)
# fi;
if [[ "$MFT_Sector" -lt "$size" ]];
then
MFT_FILE=$(dd if=$part skip=$MFT_Sector count=1 2>>$Trash | hexdump -v -n 4 -e '"%_u"');
else
MFT_FILE="";
fi;
MFT_Mirr_Cluster=$(hexdump -v -s 56 -n 4 -e '"%d"' $part);
MFT_Mirr_Sector=$(( MFT_Mirr_Cluster * SectorsPerCluster ));
if [[ "$MFT_Mirr_Sector" -lt "$size" ]];
then
MFT_Mirr_FILE=$(dd if=$part skip=$MFT_Mirr_Sector count=1 2>>$Trash | hexdump -v -n 4 -e '"%_u"');

else
MFT_Mirr_FILE="";
fi;
if [[ "$offset" = "$start" && "$MFT_FILE" = "FILE" && "$MFT_Mirr_FILE" = "FILE" && "$Comp_Size" = "0" ]];
then
BSI=$(echo $BSI" "No errors found in the Boot Parameter Block.);
else
if [[ "$offset" != "$start" ]]
then
BSI=$(echo $BSI" "According to the info in the boot sector, $name starts at sector $offset.)
if [[ "$offset" != "63" && "$offset" != "2048" && "offset" != "0" || "$kind" != "L" ]]
then
BSI=$(echo $BSI" "But according to the info from fdisk, $name starts at sector $start.);
fi;
fi;
if [[ "$MFT_FILE" != "FILE" ]];
then
BSI=$(echo $BSI" "The info in boot sector on the starting sector of the MFT is wrong.);
echo MFT Sector of $name >> $Unknown_MBR;
echo >> $Unknown_MBR
dd if=$part skip=$MFT_Sector count=1 2>>$Trash| hexdump -C >>$Unknown_MBR;
fi;
if [[ "$MFT_Mirr_FILE" != "FILE" ]];
then
BSI=$(echo $BSI" "The info in the boot sector on the starting sector of the MFT Mirror is wrong.);
fi;

if [[ "$Comp_Size" != "0" ]];
then
BSI=$(echo $BSI" "According to the info in the boot sector, $name has $BPB_Part_Size sectors, but according to the info from fdisk, it has $size sectors.);
fi;
fi;
fi;

######################## Investigate the Boot Parameter Block (BPB)of some Fat partitions
##### Identifies Fat Bootsectors which are used for booting.

## if [[ "$Bytes8081" = "7cc6" || "$Bytes8081" = "7815" || "$Bytes8081" = "B6D1" || "$Bytes8081" = "7405" || "$Bytes8081" = "6974" || "$Bytes8081" = "bd0" || "$Bytes8081" = "89e" ]] ;

if [[ "$type" = "vfat" ]];
then
offset=$(hexdump -v -s 28 -n 4 -e '"%d\n"' $part); #### Starting sector the partition according to BPP
BPB_Part_Size=$(hexdump -v -s 32 -n 4 -e '"%d"' $part); ### Partition Size in sectors accoring to BPB
Comp_Size=$(( (BPB_Part_Size - size)/256 )) ### This number will be unequal to zero if the two partions size differ by more than 255 sectors.
#Track=$(hexdump -v -s 24 -n 2 -e '"%u"' $part)'' ### Number of sectors per track.
#Heads=$(hexdump -v -s 26 -n 2 -e '"%u"' $part)'' ### Number of heads
#if [[ "$Heads" != 255 || "$Track" != 63 ]] ### Checks for an usual geometry.
#then
# BSI=$(echo $BSI" "Geometry: $Heads Heads and $Track sectors per Track.) ### Report unusal geometry
#fi;
if [[ "$offset" = "$start" && "$Comp_Size" = "0" ]]; ### Check whether Partitons starting sector and the Partition Size of BPB and fdisk agree.
then
BSI=$(echo $BSI" "No errors found in the Boot Parameter Block.); ##If they agreee
else ###### if they don't agree
if [[ "$offset" != "$start" ]] ### if partition starting sector disagree
then
BSI=$(echo $BSI" "According to the info in the boot sector, $name starts at sector $offset.) ### display the starting sector accoding to BPB
if [[ "$offset" != "63" && "$offset" != "2048" || "$kind" != "L" ]] ### check whether partition is logcial partition and starting sector is a 63.
then ### if not, display starting sector according to fdisk.
BSI=$(echo $BSI" "But according to the info from fdisk, $name starts at sector $start.);
fi; ### If not, don't display. (This is quite common occurence, and only matters if one tries to boot Windows from a logical partition. So I decided not to display a warning message in this case.
fi;
#### If Partition sizes from BPB and FDISK differ by more than 255 sector, display both sizes.
if [[ "$Comp_Size" != "0" ]];
then
BSI=$(echo $BSI" "According to the info in the boot sector, $name has $BPB_Part_Size sectors.)
if [[ "$BPB_Part_Size" != 0 ]];
then
BSI=$(echo "$BSI"." " But according to the info from the partition table , it has $size sectors.);
fi; ## Don't display warning message in the common case BPB_Part_Size=0.
fi;

fi; #### End of BPB Error if then else
fi; ###### End of Investigation of the BPB of vfat partitions.
################################################## ##############################################
##### Display boot sector info
echo -n " Boot sector info: ">>"$Log"
echo $BSI | fold -s -w 55 | sed -e '2~1s/.*/ &/'>>"$Log"

####Exclude Partitions which contain no information, #########
##### or which we (currently) don't know how to accces. #########
if [ "$type" != "swap" ] && [ "$type" != "Extended Partition" ] && [ "$type" != "unknown volume type" ] && [ "$type" != "LVM2_member" ] && [ "$type" != "linux_raid_member" ] && [ "$type" != "crypto_Luks" ] && [ "$system" != "Bios Boot Partition" ] ;
then

CheckMount=$(mount| grep "$part " |sed '2,$ d');
CheckMount=${CheckMount% type*};
CheckMount=${CheckMount#* on };
### Check whether partition is already mounted
if [ "$CheckMount" != "" ] ;
then
if [ "$CheckMount" = "/" ];
then mountname="";
else
mountname=$CheckMount; #### if yes,use existing mount point.
fi;
fi;
if [ "$CheckMount" != "" ] || mount -r -t "$type" $part "$mountname" 2>>$Mount_Error || ( [ "$type" = ntfs ] && ntfs-3g -o ro $part "$mountname" 2>>$Mount_Error ) ; ####### Try to mount partition
then ############ if partition is mounted.
#####Try to identify the Operating System (OS) by looking for files specific to the OS
OS=""

grep -q "W.i.n.d.o.w.s. .V.i.s.t.a" "$mountname"/{windows,Windows,WINDOWS}/{System32,system32}/{Winload,winload}.exe 2>>$Trash && OS="Windows Vista";

grep -q "W.i.n.d.o.w.s. .7" "$mountname"/{windows,Windows,WINDOWS}/{System32,system32}/{Winload,winload}.exe 2>>$Trash && OS="Windows 7";
for WinOS in "MS-DOS" "MS-DOS 6.22" "MS-DOS 6.21" "MS-DOS 6.0" "MS-DOS 5.0" "MS-DOS 4.01" "MS-DOS 3.3" "Windows 98" "Windows 95"; do grep -q "$WinOS" "$mountname"/{IO.SYS,io.sys} 2>>$Trash && OS="$WinOS"; done;


[ -s "$mountname/Windows/System32/config/SecEvent.Evt" ] || [ -s "$mountname/WINDOWS/system32/config/SecEvent.Evt" ] || [ -s "$mountname/WINDOWS/system32/config/secevent.evt" ] || [ -s "$mountname/windows/system32/config/secevent.evt" ] && OS="Windows XP";

[ -s "$mountname/etc/issue" ] && OS=$(sed -e 's/\\. //g' -e 's/\\.//g' -e 's/^[ \t]*//' "$mountname"/etc/issue);

[ -s "$mountname/etc/slackware-version" ] && OS=$(sed -e 's/\\. //g' -e 's/\\.//g' -e 's/^[ \t]*//' "$mountname"/etc/slackware-version);


#################################### search for the files in $Bootfiles ########################
#################################### and if found, display there contained ########################
BootFiles=""
if [ "$type" = "vfat" ];
then
Boot_Files=$Boot_Files_Fat;
else
Boot_Files=$Boot_Files_Normal;
fi;

for file in $Boot_Files;
do
if [ -f "$mountname"$file ] && [ -s "$mountname"$file ] && FileNotMounted "$mountname"$file "$mountname"
then
BootFiles=$(echo $BootFiles" "$file);
if ! [ -h "$mountname"$file ]; ### check whether file is symlink
then ### if not a symlink, display content.
titlebar_gen "$name" $file; ##generates a titlebar above each file/dir listed
cat "$mountname"$file >> "$Log1";
fi;
fi;
done;
################# Search for Wubi partitions ###################################
if [ -f "$mountname""/ubuntu/disks/root.disk" ];
then
Wubi=$(losetup -a|awk '$3 ~ "(/host/ubuntu/disks/root.disk)"{print $1; exit}'|sed s/.$//)
#check whether Wubi already has a loop device.
if [[ "$Wubi" = "" ]];
then
Wubi=$(losetup -f --show "$mountname""/ubuntu/disks/root.disk" );
WubiDev=0;
else
WubiDev=1;
fi;
if [ "$Wubi" != "" ];
then
Get_Partition_Info "$Log"x "$Log1"x "$Wubi" "$name""/Wubi" "Wubi/""$mountname" "Wubi" 0 0 "Wubi" "";
[[ $WubiDev = 0 ]] && losetup -d "$Wubi"; #delete Wubu loop device, if created by BIS
else
echo "Found Wubi on $name. But could not create a loop device">>$Error_Log;
fi;
fi;



#################################### Search for the programs in $Boot_Prog, ###############
################################### if found displays their names. ###############
if [ "$type" = "vfat" ];
then
Boot_Prog=$Boot_Prog_Fat;
else
Boot_Prog=$Boot_Prog_Normal;
fi;

for file in $Boot_Prog;
do
if [ -f "$mountname"$file ] && [ -s "$mountname"$file ] && FileNotMounted "$mountname"$file "$mountname";
then
BootFiles=$(echo $BootFiles" "$file);
fi;
done;


################### Search for the directories related to Booting ########################
##################, if found display the list of files #######################

# for file in $Boot_Dir; #directories in that directory.
# do
# if [ -d "$mountname"$file ];
# then
# BootFiles=$(echo $BootFiles" "$file);
# titlebar_gen "$name" $file ##generates a titlebar above each file/dir listed
# ls -la "$mountname"$file >> "$Log1" ;
#
# fi;
# done;

#################### Search for files containing boot codes #################################

for file in $Boot_Codes_Dir ##### loop through all directories which might contain boot_code files
do
if [ -d "$mountname"$file ] && FileNotMounted "$mountname"$file "$mountname"; ##### if such directory exist
then
for loader in $( ls "$mountname"$file ); ##### look at the content of that directory
do
if [ -f "$mountname$file$loader" ] && [ -s "$mountname$file$loader" ]; #### it its a file
then
sig=$(hexdump -v -s 257 -n 8 -e '8/1 "%_p"' "$mountname"$file$loader);
if [ "$sig" = "BootPart" ] ##### Bootpart code has "BootPart" written at0x101
then
offset=$(hexdump -v -s 241 -n 4 -e '"%d"' "$mountname"$file$loader);
dr=$(hexdump -v -s 111 -n 1 -e '"%d"' "$mountname"$file$loader);
dr=$((dr -127))
BFI=$(echo $BFI " "BootPart in the file $file$loader is trying to chain load sector \#$offset on boot drive \#$dr);
fi;
sig=$(hexdump -v -s 383 -n 4 -e '4/1 "%_p"' "$mountname"$file$loader);
if [ "$sig" = "GRUB" ]; ##### Grub and Grub1.96 have "Grub" written at 0x17f
then
sig2=$(hexdump -v -n 2 -e '/1 "%x"' "$mountname"$file$loader);
if [[ "$sig2" = "eb48" ]] ### distinguish Grub and Grub 2 by the
##### first two bytes.
then
stage2_loc "$mountname"$file$loader;
BFI=$(echo $BFI" "Grub $Grub_Version in the file $file$loader $Stage2_Msg);
else
core_loc "$mountname"$file$loader 1.96;
BFI=$(echo $BFI" "Grub 1.96 in the file $file$loader $Core_Msg);
fi;
fi;
sig=$(hexdump -v -s 392 -n 4 -e '4/1 "%_p"' "$mountname"$file$loader);#### Grub1.97 has "Grub" writtem at 0x188
if [ "$sig" = "GRUB" ]; ##### Grub 2 have "Grub" written at 0x188
then
core_loc "$mountname"$file$loader 1.97;
BFI=$(echo $BFI" "Grub 2 in the file $file$loader $Core_Msg);
fi;

fi;
done; ## End of loop through the files in a particular Boot_Code_Directory
fi;
done ## End of the loop through the Boot_Code_Directories.

######### Determine the end point of all files in the GrubError18_Files list

echo >$Tmp_Log;
counter=0;
cd "$mountname"/;
for file in $(ls $GrubError18_Files 2>>$Trash);
do
if [[ -f $file ]] && [[ -s $file ]] && FileNotMounted "$mountname""/"$file "$mountname"
then
EndGB="??";
BlockSize=$(filefrag -v $file| grep "Blocksize" |awk '{print $6}');
if [ "$BlockSize" != "" ];
then
LastBlock=$(filefrag -v "$file"| grep "Last block" |awk '{print $3}');
if [ "$LastBlock" != "" ];
then
EndGB=$(echo $(((BlockSize*LastBlock + 512*start)/100000000 ))|sed 's/\(.\)$/\.\1/')
fi;
fi;
BlockSize=$(filefrag -v "$file"| grep "blocksize" |awk '{print $NF}'| sed 's/)//');
if [ "$BlockSize" != "" ];
then
LastBlock=$(filefrag -v "$file" | grep 'eof' |awk '{print $3}');
if [ "$LastBlock" != "" ];
then
EndGB=$(echo $(((BlockSize*LastBlock + 512*start)/100000000 ))|sed 's/\(.\)$/\.\1/')
fi;
fi;
printf "%6sGB: %-s\n" $EndGB "$file" >>$Tmp_Log;
((counter++));
fi;
done;
cd $Folder;
if [ $counter != 0 ];
then
titlebar_gen "$name" ": Location of files loaded by Grub";
cat $Tmp_Log>>"$Log1";
fi;
echo >$Tmp_Log;

if [[ $BFI != "" ]];
then
echo -n " Boot file info: ">>"$Log"
echo $BFI | fold -s -w 55 | sed -e '2~1s/.*/ &/'>>"$Log"
fi;
echo " Operating System: "$OS | fold -s -w 55 | sed -e '2~1s/.*/ &/'>>"$Log"
echo -n " Boot files/dirs: ">>"$Log"
echo $BootFiles | fold -s -w 55 | sed -e '2~1s/.*/ &/'>>"$Log"

if [ "$CheckMount" = "" ]; ## if partition was mounted by the script
then
umount "$mountname" || umount -l "$mountname";
fi;
else ############### if partition failed to mount
echo " Mounting failed:">>"$Log";
cat $Mount_Error>>"$Log";
fi; ### end of Mounting "if then else"
fi; ### end of Partition Type "if then else"
echo>>"$Log";
if [[ -e "$Log"x ]];
then cat "$Log"x>>"$Log";
rm "$Log"x;
fi;
if [[ -e "$Log1"x ]];
then cat "$Log1"x>>"$Log1";
rm "$Log1"x;
fi;

} ## end Get_Partition_Info function



## "titlebar_gen" generates the $name$file title bar to always be either 79 or 80 chars total in length:
titlebar_gen () {
name_file="$1$2:"; name_file_length=${#name_file}
equal_signs_line_length=$(((80-name_file_length)/2-1)); equal_signs_line=""
for length in $(seq $equal_signs_line_length); do
equal_signs_line='='$equal_signs_line
done;
echo >> "$Log1";
echo "$equal_signs_line $name_file $equal_signs_line" >> "$Log1";
echo >> "$Log1";
}


echo " Boot Info Script $VERSION dated $DATE ">>"Log";
echo>>"Log";
echo '============================= Boot Info Summary: =============================='>>"$Log";
echo>>"$Log";

##### Search for hard drives which don't exist,have a corrupted partition table
##### or don't have a parition table(whole drive is a file system)
##### Information on all hard drives which a valid partition table are stored in the
##### Hard drives arrays: HD?????
FSD=0; #id for Filesystem Drives
for drive in $All_Hard_Drives;
do
size=$(fdisks $drive);
PrintBlkid $drive;
if [ 0 -lt $size 2>>$Trash ];
then
if [ "$(blkid $drive)" = "" ] || [ "$(blkid | grep $drive:)" = "" ]; #Check whether drive is a filesystem
then #if drive is not a filesytem
size=$((2*size));
# (not used) Hard_Drives=$Hard_Drives" "$drive;
HDName[$HI]=$drive;
HDSize[$HI]=$size;
geometry=$(fdisk -lu $drive 2>>$Trash | grep "head");
HDHead[$HI]=$(echo $geometry | awk '{print $1}');
HDTrack[$HI]=$(echo $geometry | awk '{print $3}');
HDCylinder[$HI]=$(echo $geometry | awk '{print $5}');
###Look at the first 4 bytes of the second sector to identify type of partition table;
case $(hexdump -v -s 512 -n 4 -e '"%_u"' $drive) in
"EMBR") HDPT[$HI]="BootIt";;
"EFI ") HDPT[$HI]="EFI";;
*) HDPT[$HI]="MSDos";;
esac;
HI=$((HI+1));
else #if drive is filesystem
if [ $( expr match "$(BlkidTag "$drive" TYPE)" '.*raid') -eq 0 ] || [ "$(BlkidTag "$drive" UUID)" != "" ];
then
FilesystemDrives[$FSD]="$drive";
((FSD++));
fi;
fi;
else
echo -n "$(basename $drive) " >>$FakeHardDrives;
fi;
done;
############ Identify the MBR of each hard drive.
echo "Identifying MBRs..." ;
for hi in ${!HDName[@]};
do
drive="${HDName[$hi]}";
Message=$(echo is installed in the MBR of $drive)
case $(hexdump -v -n 2 -e '/1 "%x"' $drive) in ####Look at the first two bytes of the hard drive to identify the boot code installed in the MBR

################################ If Grub is in the MBR #########################

eb48) offset=$(hexdump -v -s 68 -n 4 -e '"%u"' $drive);### 0x44 contains the offset of the next stage
if [ "$offset" != 1 ]; ###if Grub is installed without stage1.5 files
then
stage2_loc $drive;
Message=$(echo $Message and $Stage2_Msg)
else ### if grub is installed with stage1.5 files
Grub_String=$(hexdump -v -s 1042 -n 94 -e '"%_u"' $drive);
Grub_Version=${Grub_String%%nul*};
tmp='/'${Grub_String#*/};
tmp=${tmp%%nul*};
stage=$(echo $tmp| awk '{print $1}');
menu=$(echo $tmp| awk '{print $2}');
[[ "$menu" = "" ]] || stage=$(echo $stage and $menu);
part_info=$((1045 + ${#Grub_Version}));
pa=$(hexdump -v -s $part_info -n 1 -e '"%d"' $drive);
part_info=$((part_info+1));
dr=$(hexdump -v -s $part_info -n 1 -e '"%d"' $drive);
dr=$((dr-127));
pa=$((pa+1));
if [ $dr = 128 ];
then
Message=$(echo $Message and looks on the same drive in partition \#$pa for $stage.)
else
Message=$(echo $Message and looks on boot drive \#$dr in partition \#$pa for $stage.)
fi;
fi;
BL="Grub "$Grub_Version;;
############################### If Grub 1.96 is in the MBR #####################################

eb4c ) BL="Grub 1.96";
offset=$(hexdump -v -s 68 -n 4 -e '"%u"' $drive);### 0x44 contains the offset of the next stage
if [ "$offset" != 1 ]; ###if Grub2 is installed without Core.
then
core_loc $drive 1.96;
Message=$(echo $Message and $Core_Msg)
else ### if Grub2 is installed with Core
Grub_String=$(hexdump -v -s 1056 -n 64 -e '"%_u"' $drive);
Core_Dir=$(echo $Grub_String | sed s/nul[^$]*//);
pa=$(hexdump -v -s 1044 -n 1 -e '"%d"' $drive);
dr=$(hexdump -v -s 77 -n 1 -e '"%d"' $drive);
dr=$((dr-127));
pa=$((pa+1));
if [ $dr = 128 ];
then
Message=$(echo $Message and looks on the same drive in partition \#$pa for $Core_Dir.)
else
Message=$(echo $Message and looks on boot drive \#$dr in partition \#$pa for $Core_Dir.)
fi;
fi;;

################### If Grub 2 in the MBR###################################
eb63 ) BL="Grub 2"
offset=$(hexdump -v -s 92 -n 4 -e '"%u"' $drive);### 0x5c contains the offset of the core
if [ "$offset" != 1 ]; ###if Grub2 is installed without embeded Core.
then
core_loc $drive 1.97;
Message=$(echo $Message and $Core_Msg)
else ### if Grub2 is installed with Core
Grub_String=$(hexdump -v -s 1052 -n 64 -e '"%_u"' $drive);
Core_Dir=$(echo $Grub_String | sed s/nul[^$]*//);
pa=$(hexdump -v -s 1044 -n 1 -e '"%d"' $drive);
dr=$(hexdump -v -s 77 -n 1 -e '"%d"' $drive);
dr=$((dr-127));
pa=$((pa+1));
if [ $pa = 255 ];
then
Message=$(echo $Message and looks for $Core_Dir.)
else
Message=$(echo $Message and looks on the same drive in partition \#$pa for $Core_Dir.)

fi;
fi;;
################################################## ############################################
ebe) BL=ThinkPad;;
31c0) BL="Acer 3";;
33c0) BL=Windows;;
33ff) BL='HP/Gateway';;
b800) BL=PloP;;
ea1e) BL="Truecrypt Boot Loader";;
eb04) BL=Solaris;;
eb31) BL=Paragon;;
eb5e) case $(hexdump -v -n 3 -e '/1 "%x"' $drive) in ####Look at the first three bytes of the hard drive to identify the boot code installed in the MBR
eb5e00) BL=fbinst;;
eb5e80) BL=Grub4Dos;;
esac;;
fa31) case $(hexdump -v -n 3 -e '/1 "%x"' $drive) in ####Look at the first tree bytes of the hard drive to identify the boot code installed in the MBR
fa31c0) BL=Syslinux;;
fa31c9) BL="Master Boot LoaDeR";;
esac;;

fa33) BL="No boot loader";;
fab8) BL="No boot loader";;
fabe) BL="No boot loader?";;
faeb) BL=Lilo;;
fc31) BL=Testdisk;;
fc33) BL=GAG;;
fceb) BL="BootIt NG";;
00) BL="No boot loader";;
*) BL="No known boot loader"
echo "Unknown MBR on $drive" >> $Unknown_MBR;
echo >> $Unknown_MBR;
hexdump -v -n 512 -C $drive >> $Unknown_MBR;
echo >> $Unknown_MBR;;
esac;
##Output message at beginning of summary that gives MBR info for each drive:
echo -n " => ">>"$Log"
echo "$BL $Message" | fold -s -w 75 | sed -e '2~1s/.*/ &/' >>"$Log"
HDMBR[$hi]=$BL;
done;
echo>>"$Log";
################################################## ####################################
############# Store and Display all the partitions tables.##########################
for HI in ${!HDName[@]};
do
drive=${HDName[$HI]};
echo "Computing Partition Table of $drive...";
FP=$((PI+1)); #used if non-MS_DOS partition table is not in use.
FirstPartition[$HI]=$FP;
PTType=${HDPT[$HI]};
HDPT[$HI]="MSDos";
echo "Drive: $(basename $drive ) ___________________ __________________________________________________ ___" >>$PartitionTable;
fdisk -lu $drive 2>>$Trash |sed '/omitting/ d'|sed '6,$ d' >>$PartitionTable;
echo >>$PartitionTable;
printf "$PTFormat" "Partition" "Boot" "Start" "End" "Size" "Id" "System">>$PartitionTable;
echo >>$PartitionTable;
ReadPT $HI 0 4 $PartitionTable "$PTFormat" "" 0;
echo >>$PartitionTable;
LastPartition[$HI]=$PI;
LP=$PI;
CheckPT ${FirstPartition[$HI]} ${LastPartition[$HI]} $PartitionTable $HI;
echo >>$PartitionTable;
HDPT[$HI]=$PTType;
case $PTType in
BootIt) echo -n BootIt NG Partition Table detected>>$PartitionTable;
[[ "${HDMBR[$HI]}" = "BootIt NG" ]] && echo . >>$PartitionTable || echo , but does not seem to be used. >>$PartitionTable;
echo>>$PartitionTable;
ReadEMBR $HI $PartitionTable;
echo >>$PartitionTable;
if [ "${HDMBR[$HI]}" = "BootIt NG" ];
then
LastPartition[$HI]=$PI;
CheckPT ${FirstPartition[$HI]} ${LastPartition[$HI]} $PartitionTable $HI;
else
FirstPartition[$HI]=$FP;
fi;;
EFI) FirstPartition[$HI]=$((PI+1));
EFIee=$(hexdump -v -s 450 -n 1 -e '"%x"' $drive);
echo -n GUID Partition Table detected>>$PartitionTable;
[[ "$EFIee" = "ee" ]] && echo . >>$PartitionTable || echo , but does not seem to be used. >>$PartitionTable ;
echo >>$PartitionTable;
ReadEFI $HI $PartitionTable;
echo >>$PartitionTable;
if [ "$EFIee" = "ee" ];
then
LastPartition[$HI]=$PI;
CheckPT ${FirstPartition[$HI]} ${LastPartition[$HI]} $PartitionTable $HI;
else
FirstPartition[$HI]=$FP;
fi;;
esac;
done;

for hi in ${!HDName[@]}; ############Loop through all Hard Drives
do
drive=${HDName[$hi]}
for (( pi = FirstPartition[$hi]; pi <= LastPartition[$hi]; pi++ )); ## And then loop through ###the partitions on that drive
do

part_type=${TypeArray[$pi]}; #### Type of the partition according to fdisk
start=${StartArray[$pi]};
size=${SizeArray[$pi]};
end=${EndArray[$pi]};
kind=${KindArray[$pi]};
system=${SystemArray[$pi]};
if [[ "${DeviceArray[$pi]}" = "" ]];
then
name="${NamesArray[$pi]}";
mountname=$(basename $drive)"_"$pi;
part=$(losetup -f --show -o $((start*512)) $drive);
#### --sizelimit $((size*512)) --sizelimit seems to be a recently added option for losetup. Failed on Hardy
else
part="${DeviceArray[$pi]}";
name=$(basename $part); #### Name of the partition (/dev/sda8 -> sda8)
mountname=$name;
fi;

Get_Partition_Info "$Log" "$Log1" "$part" "$name" "$mountname" "$kind" "$start" "$end" "$system" "$pi";

[[ "${DeviceArray[$pi]}" = "" ]] && losetup -d $part;
done; ### end of partition loop
done; ### end of hard drive loop


################ Deactivate dmraid's activated by the script#############

if [ "$InActiveDMRaid" != "" ];
then
dmraid -an $InActiveDMRaid
fi;

##################### Search LVM partitions for information. #########
##################### only works if the "LVM2"-package is installed #########
if type lvscan >>$Trash 2>>$Trash && type lvdisplay >>$Trash 2>>$Trash && type lvchange >>$Trash 2>>$Trash;

then ### if LVM2 is installed

LVM_Partitions=$(lvscan| awk '{print $2}'| awk -F / '{print "/dev/mapper" "/" $3 "-" $4}'|sed s/.$//)

for LVM in $LVM_Partitions;
do
LVM_Size=$(lvdisplay -c $LVM |awk -F : '{print $7}');
LVM_Status=$(lvdisplay $LVM |grep "LV Status"|awk '{print $3}');
lvchange -ay $LVM;
name=${LVM:12};
mountname="LVM/""$name";
kind="LVM";
start=0;
end=$LVM_Size;
system="";
pi="";

Get_Partition_Info "$Log" "$Log1" "$LVM" "$name" "$mountname" "$kind" "$start" "$end" "$system" "$pi";

[[ "$LVM_Status" = "NOT" ]] && lvchange -an "$LVM";
#deactivate all LVM's,which were not active.


done;
fi;


####################### Search MDRaid Partitons for Information##############################
###################### Only works if "mdadm" is installed #############################
if type mdadm >>$Trash 2>>$Trash;
then
MD_Active_Array=$(mdadm --detail --scan |awk '{print $2}');
## all arrays which are already assembled
mdadm --assemble --scan #assemble all arrays
MD_Array=$(mdadm --detail --scan|awk '{print $2}');
## all arrays.
for MD in $MD_Array;
do
MD_Size=$(fdisks $MD); #size in blocks
MD_Size=$((2*MD_Size)); #size in sectors
MD_Active=0;
for MDA in $MD_Active_Array; ## check whether MD is active
do
if [[ "$MDA" = "$MD" ]]
then
MD_Active=1;
break;
fi;
done;
name=${MD:5};
mountname="MDRaid/""$name";
kind="MDRaid";
start=0;
end=$MD_Size;
system="";
pi="";

Get_Partition_Info "$Log" "$Log1" "$MD" "$name" "$mountname" "$kind" "$start" "$end" "$system" "$pi";

[[ "$MD_Active" = 0 ]] && mdadm --stop $MD

#deactivate all MD_Raid's,which were not active.
done;
fi;

####################### Search Filessystem hard drive for information########################

for FD in ${FilesystemDrives[@]};
do
FD_Size=$(fdisks $FD); #size in blocks
FD_Size=$((2*FD_Size)); #size in sectors
name=${FD:5};
mountname="FD/""$name";
kind="FD";
start=0;
end=$FD_Size;
system="";
pi="";

Get_Partition_Info "$Log" "$Log1" "$FD" "$name" "$mountname" "$kind" "$start" "$end" "$system" "$pi";
done;


################################################## #############################################

echo '=========================== Drive/Partition Info: ============================='>>"$Log";
echo>>"$Log";

[ -e $PartitionTable ] && cat $PartitionTable>>"$Log" || echo no valid partition table found>>"$Log";


echo "blkid -c /dev/null: __________________________________________________ __________">>"$Log";
echo>>"$Log";
printf "$BlkidFormat" Device UUID TYPE LABEL>>"$Log";
echo>>"$Log"
for dev in $(blkid -o device);do PrintBlkid $dev;done;
sort -u $BLKID>>"$Log";
echo>>"$Log";

if [ $(ls -R /dev/mapper 2>>$Trash | wc -l) -gt 2 ]
then

echo '=============================== "ls -R /dev/mapper/" output: ==============================='>>"$Log";
ls -R /dev/mapper>>$Log
echo>>"$Log";
fi;





echo '============================ "mount | grep ^/dev output: ==========================='>>"$Log";
MountFormat='%-16s %-24s %-10s %s\n';
Fis=':x:x:x:x:'
echo>>"$Log";
printf "$MountFormat" "Device" "Mount_Point" "Type" "Options" >>"$Log";
echo>>"$Log";
mount | grep ' / '| grep -v '^/'| sed 's/ on /'$Fis'/' |sed 's/ type /'$Fis'/'|sed 's/ (/'$Fis'(/'|awk -F $Fis '{printf "'"$MountFormat"'", $1, $2, $3, $4 }'>>"$Log";
mount | grep '^/dev'|sed 's/ on /'$Fis'/' |sed 's/ type /'$Fis'/' |sed 's/ (/'$Fis'(/'|awk -F $Fis '{printf "'"$MountFormat"'", $1, $2, $3, $4 }'>>"$Log";
echo>>"$Log";


################# Write the content of Log1 to the log file
[ -e "$Log1" ] && cat "$Log1">>"$Log";

if [ -e $Unknown_MBR ];
then
echo "=========================== Unknown MBRs/Boot Sectors/etc =======================">>"$Log";
echo>>"$Log";
cat $Unknown_MBR>>"$Log";
echo>>"$Log";
fi;

if [ -e $FakeHardDrives ];
then
echo "=======Devices which don't seem to have a corresponding hard drive==============">>"$Log";
echo>>"$Log";
cat $FakeHardDrives>>"$Log";
echo>>"$Log";
fi;


##################### Write the Error Log to the log file
if [ -s $Error_Log ];
then
echo "=============================== StdErr Messages: ===============================">>"$Log";
echo>>"$Log";
cat $Error_Log>>"$Log";
fi;

##### Copy the Log file to RESULTS file and make the user the owner of Result file
cp "$Log" "$LogFile"
chown $(basename ~) "$LogFile";

####### Reset the Standard Output to the Terminal
#exec 1>&-;
#exec 1>&6;
#exec 6>&-;

echo Finished. The results are in the file $(basename "$LogFile") located in "$Dir";
exit

oldfred
September 13th, 2010, 11:25 PM
You posted the script, please run the script as per the instructions and post the results.txt that it creates.

startgame412
September 14th, 2010, 09:10 AM
Thanks everyone for all your help so far. Here is the information from the results.txt file



Boot Info Script 0.55 dated February 15th, 2010

============================= Boot Info Summary: ==============================

=> Windows is installed in the MBR of /dev/sda
=> GAG is installed in the MBR of /dev/sdb

sda1: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows XP
Boot files/dirs: /boot.ini /ntldr /NTDETECT.COM

sdb1: __________________________________________________ _______________________

File system: ext4
Boot sector type: Grub 2
Boot sector info: Grub 2 is installed in the boot sector of sdb1 and
looks at sector 34434103 of the same hard drive for
core.img, but core.img can not be found at this
location.
Operating System: Ubuntu 10.04 LTS
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sdb2: __________________________________________________ _______________________

File system: swap
Boot sector type: -
Boot sector info:

sdb3: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders, total 156301488 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sda1 * 63 156,296,384 156,296,322 7 HPFS/NTFS


Drive: sdb ___________________ __________________________________________________ ___

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition Boot Start End Size Id System

/dev/sdb1 * 63 82,043,954 82,043,892 83 Linux
/dev/sdb2 82,043,955 85,192,694 3,148,740 82 Linux swap / Solaris
/dev/sdb3 85,192,695 976,768,064 891,575,370 7 HPFS/NTFS


blkid -c /dev/null: __________________________________________________ __________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/ramzswap0 swap
/dev/sda1 72CC0583CC054339 ntfs
/dev/sda: PTTYPE="dos"
/dev/sdb1 de348af7-737d-4771-a1af-f2a8e4f79025 ext4
/dev/sdb2 bd726dac-fbee-4716-b63f-31008a100a04 swap
/dev/sdb3 EC70B85B70B82DE8 ntfs IOMEGA HDD
/dev/sdb: PTTYPE="dos"

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

aufs / aufs (rw)
/dev/sr1 /cdrom iso9660 (ro,noatime)
/dev/loop0 /rofs squashfs (ro,noatime)


================================ sda1/boot.ini: ================================

[boot loader]

timeout=30

default=multi(0)disk(0)rdisk(0)partition(1)\WINDOW S

[operating systems]

multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Home Edition" /fastdetect /NoExecute=OptIn


=========================== sdb1/boot/grub/grub.cfg: ===========================

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
set saved_entry=${prev_saved_entry}
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z ${boot_once} ]; then
saved_entry=${chosen}
save_env saved_entry
fi
}

function recordfail {
set recordfail=1
if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd1,1)'
search --no-floppy --fs-uuid --set de348af7-737d-4771-a1af-f2a8e4f79025
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd1,1)'
search --no-floppy --fs-uuid --set de348af7-737d-4771-a1af-f2a8e4f79025
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.32-21-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd1,1)'
search --no-floppy --fs-uuid --set de348af7-737d-4771-a1af-f2a8e4f79025
linux /boot/vmlinuz-2.6.32-21-generic root=UUID=de348af7-737d-4771-a1af-f2a8e4f79025 ro quiet splash
initrd /boot/initrd.img-2.6.32-21-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-21-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd1,1)'
search --no-floppy --fs-uuid --set de348af7-737d-4771-a1af-f2a8e4f79025
echo 'Loading Linux 2.6.32-21-generic ...'
linux /boot/vmlinuz-2.6.32-21-generic root=UUID=de348af7-737d-4771-a1af-f2a8e4f79025 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-21-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd1,1)'
search --no-floppy --fs-uuid --set de348af7-737d-4771-a1af-f2a8e4f79025
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd1,1)'
search --no-floppy --fs-uuid --set de348af7-737d-4771-a1af-f2a8e4f79025
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Home Edition (on /dev/sda1)" {
insmod ntfs
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 72cc0583cc054339
drivemap -s (hd0) ${root}
chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

=============================== sdb1/etc/fstab: ===============================

# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sdb1 during installation
UUID=de348af7-737d-4771-a1af-f2a8e4f79025 / ext4 errors=remount-ro 0 1
# swap was on /dev/sdb2 during installation
UUID=bd726dac-fbee-4716-b63f-31008a100a04 none swap sw 0 0

=================== sdb1: Location of files loaded by Grub: ===================


17.6GB: boot/grub/core.img
19.6GB: boot/grub/grub.cfg
17.6GB: boot/initrd.img-2.6.32-21-generic
17.6GB: boot/vmlinuz-2.6.32-21-generic
17.6GB: initrd.img
17.6GB: vmlinuz

oldfred
September 14th, 2010, 05:31 PM
You still have gag installed in sdb. Only another working boot loader can use the grub installed in a partition and the partition install seems to have an error also.

=> Windows is installed in the MBR of /dev/sda
=> GAG is installed in the MBR of /dev/sdb

Install grub2 to the MBR of sdb (not sdb1) as suggested garvinrick4 in post#6 except your install is on sdb1 not sdb2. And set BIOS to boot external first.

sudo mount /dev/sdb1 /mnt
sudo grub-install --root-directory=/mnt/ /dev/sdb
If that returns any errors run:
sudo grub-install --recheck --root-directory=/mnt/ /dev/sdb

startgame412
September 14th, 2010, 09:48 PM
Hi, thanks for your help. I was able to install grub to the mbr of sdb but it still does not work. I am getting an error message when booting that reads error out of disk grub rescue. Thanks.

oldfred
September 14th, 2010, 10:47 PM
Something about grub did not install correctly.

Can you manually boot?

set root (hd1,1)
kernel /vmlinuz root=/dev/sdb1 ro
initrd /initrd.img
boot

This should boot you into Ubuntu.
Open a terminal in Ubuntu and run:

sudo grub-install /dev/sdb
If that returns any errors run:
sudo grub-install --recheck /dev/sdb
sudo update-grub

startgame412
September 14th, 2010, 11:58 PM
Hi, thanks for all the help everyone. I fixed it. It turns out that I had to do a BIOS update and that did the trick. I got the idea to try a BIOS update from doing a search for the grub error message and found that someone solved their issue by upated their BIOS. Apparently I have never updated the BIOS as I did not understand the importance nor did I want to mess up anything but apparntly it's important for some functionality. Thank you everyone.

startgame412
September 14th, 2010, 11:59 PM
Hi, thanks for all the help everyone. I fixed it. It turns out that I had to do a BIOS update and that did the trick. I got the idea to try a BIOS update from doing a search for the grub error message and found that someone solved their issue by upated their BIOS. Apparently I have never updated the BIOS as I did not understand the importance nor did I want to mess up anything but apparntly it's important for some functionality. Thank you everyone.