Grub 2 problem

**travmanx** · June 23rd, 2010

My Grub 2 menu works fine except when I choose my Windows XP partition. It turns to a black screen then boots right back to the grub screen.

Heres some files that may be helpful?
Grub.cfg

Code:

#
# 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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
set locale_dir=($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 2.6.32-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	linux	/boot/vmlinuz-2.6.32-22-generic root=UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 ro   quiet splash
	initrd	/boot/initrd.img-2.6.32-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	echo	'Loading Linux 2.6.32-22-generic ...'
	linux	/boot/vmlinuz-2.6.32-22-generic root=UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 ro single 
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-2.6.32-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.31-14-generic' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	linux	/boot/vmlinuz-2.6.31-14-generic root=UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 ro   quiet splash
	initrd	/boot/initrd.img-2.6.31-14-generic
}
menuentry 'Ubuntu, with Linux 2.6.31-14-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	echo	'Loading Linux 2.6.31-14-generic ...'
	linux	/boot/vmlinuz-2.6.31-14-generic root=UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 ro single 
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	linux16	/boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	linux16	/boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" {
	insmod ntfs
	set root='(hd0,1)'
	search --no-floppy --fs-uuid --set f854abd454ab9442
	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 ###

fdisk -l

Code:

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00071381

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       18781   150858351    7  HPFS/NTFS
/dev/sda2           18782       38913   161710290    5  Extended
/dev/sda5           18782       28184    75529566   83  Linux
/dev/sda6           38163       38913     6032376   82  Linux swap / Solaris
/dev/sda7           28185       37750    76838863+  83  Linux
/dev/sda8           37751       38162     3309358+  82  Linux swap / Solaris

Partition table entries are not in disk order

Disk /dev/sdb: 2047 MB, 2047868928 bytes
255 heads, 63 sectors/track, 248 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0007d9a9

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1         249     1999840+   b  W95 FAT32
Partition 1 has different physical/logical endings:
     phys=(1023, 254, 63) logical=(248, 247, 63)

I do not know how to read the Fdisk, so I hope you guys knows whats what. I believe I have 3 partitions, one for XP, Ubuntu and a blank one I will be putting Fedora on.

Thanks for the help if you can.

**oldfred** · June 23rd, 2010

I think if you are into multiple installs you should be able to understand the list of partitions that fdisk lists.

To see you entire boot configuration run this script:

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.

**travmanx** · June 23rd, 2010

Originally Posted by oldfred

I think if you are into multiple installs you should be able to understand the list of partitions that fdisk lists.

To see you entire boot configuration run this script:

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.

Code:

                Boot Info Script 0.55    dated February 15th, 2010                    

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

 => Lilo is installed in the MBR of /dev/sda
 => Syslinux is installed in the MBR of /dev/sdb

sda1: _________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Grub 2
    Boot sector info:  Grub 2 is installed in the boot sector of sda1 and 
                       looks at sector 459416351 of the same hard drive for 
                       core.img, but core.img can not be found at this 
                       location. No errors found in the Boot Parameter Block.
    Operating System:  Windows XP
    Boot files/dirs:   /boot.ini /ntldr /NTDETECT.COM

sda2: _________________________________________________________________________

    File system:       Extended Partition
    Boot sector type:  -
    Boot sector info:  

sda5: _________________________________________________________________________

    File system:       ext4
    Boot sector type:  Grub 2
    Boot sector info:  Grub 2 is installed in the boot sector of sda5 and 
                       looks at sector 459366271 of the same hard drive for 
                       core.img, but core.img can not be found at this 
                       location.
    Operating System:  
    Boot files/dirs:   /etc/fstab

sda6: _________________________________________________________________________

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

sda7: _________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info:  
    Operating System:  Ubuntu 10.04 LTS
    Boot files/dirs:   /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda8: _________________________________________________________________________

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

sdb1: _________________________________________________________________________

    File system:       vfat
    Boot sector type:  Fat32
    Boot sector info:  According to the info in the boot sector, sdb1 starts 
                       at sector 0. But according to the info from fdisk, 
                       sdb1 starts at sector 63.
    Operating System:  
    Boot files/dirs:   

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

Drive: sda ___________________ _____________________________________________________

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 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   301,716,764   301,716,702   7 HPFS/NTFS
/dev/sda2         301,716,765   625,137,344   323,420,580   5 Extended
/dev/sda5         301,716,828   452,775,959   151,059,132  83 Linux
/dev/sda6         613,072,593   625,137,344    12,064,752  82 Linux swap / Solaris
/dev/sda7         452,776,023   606,453,749   153,677,727  83 Linux
/dev/sda8         606,453,813   613,072,529     6,618,717  82 Linux swap / Solaris


Drive: sdb ___________________ _____________________________________________________

Disk /dev/sdb: 2047 MB, 2047868928 bytes
255 heads, 63 sectors/track, 248 cylinders, total 3999744 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     3,999,743     3,999,681   b W95 FAT32


blkid -c /dev/null: ____________________________________________________________

Device           UUID                                   TYPE       LABEL                         

/dev/sda1        F854ABD454AB9442                       ntfs                                     
/dev/sda2: PTTYPE="dos" 
/dev/sda5        8b06da2c-a73c-44a4-8095-b3b50946b81b   ext4                                     
/dev/sda6        3a94d113-5c07-4bb0-8c3b-745f57e88167   swap                                     
/dev/sda7        fc38cde8-a7db-4e1e-963b-97af7dfae078   ext4                                     
/dev/sda8        c0724704-685a-4981-bfee-863306620e8c   swap                                     
/dev/sda: PTTYPE="dos" 
/dev/sdb1        8C31-85A8                              vfat       New Volume                    
/dev/sdb: PTTYPE="dos" 

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

Device           Mount_Point              Type       Options

/dev/sda7        /                        ext4       (rw,errors=remount-ro)
/dev/sdb1        /media/New Volume        vfat       (rw,nosuid,nodev,uhelper=udisks,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,flush)


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

[boot loader]
timeout=1
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect

=============================== sda5/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    defaults        0       0
# / was on /dev/sda5 during installation
UUID=8b06da2c-a73c-44a4-8095-b3b50946b81b /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda6 during installation
UUID=3a94d113-5c07-4bb0-8c3b-745f57e88167 none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto,exec,utf8 0       0

=========================== sda7/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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
if loadfont /usr/share/grub/unicode.pf2 ; then
  set gfxmode=640x480
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
insmod ext2
set root='(hd0,7)'
search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
set locale_dir=($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 2.6.32-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	linux	/boot/vmlinuz-2.6.32-22-generic root=UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 ro   quiet splash
	initrd	/boot/initrd.img-2.6.32-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	echo	'Loading Linux 2.6.32-22-generic ...'
	linux	/boot/vmlinuz-2.6.32-22-generic root=UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 ro single 
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-2.6.32-22-generic
}
menuentry 'Ubuntu, with Linux 2.6.31-14-generic' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	linux	/boot/vmlinuz-2.6.31-14-generic root=UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 ro   quiet splash
	initrd	/boot/initrd.img-2.6.31-14-generic
}
menuentry 'Ubuntu, with Linux 2.6.31-14-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
	recordfail
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	echo	'Loading Linux 2.6.31-14-generic ...'
	linux	/boot/vmlinuz-2.6.31-14-generic root=UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 ro single 
	echo	'Loading initial ramdisk ...'
	initrd	/boot/initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	linux16	/boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
	insmod ext2
	set root='(hd0,7)'
	search --no-floppy --fs-uuid --set fc38cde8-a7db-4e1e-963b-97af7dfae078
	linux16	/boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" {
	insmod ntfs
	set root='(hd0,1)'
	search --no-floppy --fs-uuid --set f854abd454ab9442
	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 ###

=============================== sda7/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    defaults        0       0
# / was on /dev/sda7 during installation
UUID=fc38cde8-a7db-4e1e-963b-97af7dfae078 /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda8 during installation
UUID=c0724704-685a-4981-bfee-863306620e8c none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto,exec,utf8 0       0

=================== sda7: Location of files loaded by Grub: ===================


 235.1GB: boot/grub/core.img
 234.8GB: boot/grub/grub.cfg
 232.0GB: boot/initrd.img-2.6.31-14-generic
 232.1GB: boot/initrd.img-2.6.32-22-generic
 232.0GB: boot/vmlinuz-2.6.31-14-generic
 232.0GB: boot/vmlinuz-2.6.32-22-generic
 232.1GB: initrd.img
 232.0GB: initrd.img.old
 232.0GB: vmlinuz
 232.0GB: vmlinuz.old

**oldfred** · June 23rd, 2010

You have grub in your windows boot sector:
Boot sector info: Grub 2 is installed in the boot sector of sda1

When the instructions said all drives they meant sda, sdb etc not partitions sda1, sda2 sdb1 etc. You overwrote the windows boot sector in the windows partition.

Fix for most, a few have other issues, better than windows fix in many cases as it also fixes other parameters:
This has instructions on using testdisk to repair the install of grub to the boot sector for windows from Ubuntu or Linux LiveCD.
http://sourceforge.net/apps/mediawik...ms:Boot_Sector

**wilee-nilee** · June 23rd, 2010

Originally Posted by oldfred

You have grub in your windows boot sector:
Boot sector info: Grub 2 is installed in the boot sector of sda1

When the instructions said all drives they meant sda, sdb etc not partitions sda1, sda2 sdb1 etc. You overwrote the windows boot sector in the windows partition.

Fix for most, a few have other issues, better than windows fix in many cases as it also fixes other parameters:
This has instructions on using testdisk to repair the install of grub to the boot sector for windows from Ubuntu or Linux LiveCD.
http://sourceforge.net/apps/mediawik...ms:Boot_Sector

I had wondered about this one since lilo was the bootloader, it seemed the user may have been here before. I just just watching to see what the answer was, and to see if it works.

**oldfred** · June 23rd, 2010

With lilo in the MBR the OP will just boot directly into windows which will be a good test that windows works without any grub issues. The lilo boot works just like windows in finding a partition with a boot flag (sda1 here) and jumping to the boot sector to continue booting.

To get Ubuntu to work grub2 will have to be installed.

How to restore the Ubuntu/XP/Vista/7 bootloader (Updated for Ubuntu 9.10)
http://ubuntuforums.org/showthread.php?t=1014708
kansasnoob on grub or grub2 reinstall
http://ubuntuforums.org/showpost.php...6&postcount=41

sudo mkdir /mnt/sda7
sudo mount /dev/sda7 /mnt
sudo grub-install --root-directory=/mnt /dev/sda
sudo grub-install --recheck --root-directory=/mnt /dev/sda

Thread: Grub 2 problem

Thread Tools

Display

Grub 2 problem

Re: Grub 2 problem

Re: Grub 2 problem

Re: Grub 2 problem

Re: Grub 2 problem

Re: Grub 2 problem

Bookmarks

Bookmarks

Posting Permissions