grub rescue;USB boot can login and runs very slowly

**pleasurefish** · December 10th, 2010

after i installed testdisk and repair the /dev/sda,the laptop work very quickly after i manually boot into the ubuntu9.10,smile.but if i booted into the system manually,it seems very troublesome.so oldfred,i need your help.RESULT.txt is followed. thank you.

Code:

                Boot Info Script 0.55    dated February 15th, 2010                    
============================= Boot Info Summary: ==============================
 => Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in 
    partition #8 for /boot/grub.
sda1: _________________________________________________________________________
    File system:       vfat
    Boot sector type:  Windows XP: Fat32
    Boot sector info:  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:       ntfs
    Boot sector type:  Windows XP
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files/dirs:   
sda6: _________________________________________________________________________
    File system:       ntfs
    Boot sector type:  Windows XP
    Boot sector info:  According to the info in the boot sector, sda6 starts 
                       at sector 63.
    Operating System:  
    Boot files/dirs:   
sda7: _________________________________________________________________________
    File system:       ext4
    Boot sector type:  -
    Boot sector info:  
    Operating System:  Ubuntu 9.10
    Boot files/dirs:   /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
sda8: _________________________________________________________________________
    File system:       swap
    Boot sector type:  -
    Boot sector info:  
sda9: _________________________________________________________________________
    File system:       ext4
    Boot sector type:  -
    Boot sector info:  
    Operating System:  
    Boot files/dirs:   
sda10: _________________________________________________________________________
    File system:       vfat
    Boot sector type:  MSWIN4.1: Fat 32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files/dirs:   
=========================== Drive/Partition Info: =============================
Drive: sda ___________________ _____________________________________________________
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x624aa2e0
Partition  Boot         Start           End          Size  Id System
/dev/sda1    *             63    51,424,064    51,424,002   c W95 FAT32 (LBA)
/dev/sda2          51,424,065   488,392,064   436,968,000   f W95 Ext d (LBA)
/dev/sda5          51,424,128   212,041,934   160,617,807   7 HPFS/NTFS
/dev/sda6         212,041,998   274,358,069    62,316,072   7 HPFS/NTFS
/dev/sda7         274,358,133   304,351,424    29,993,292  83 Linux
/dev/sda8         304,351,488   308,351,609     4,000,122  82 Linux swap / Solaris
/dev/sda9         308,351,673   372,659,804    64,308,132  83 Linux
/dev/sda10        372,659,868   488,392,064   115,732,197   c W95 FAT32 (LBA)

blkid -c /dev/null: ____________________________________________________________
Device           UUID                                   TYPE       LABEL                         
/dev/sda10       046D-B7C4                              vfat       BACKUP                        
/dev/sda1        8886-CCB9                              vfat                                     
/dev/sda5        2A88274388270D3F                       ntfs       SOFTWARE                      
/dev/sda6        323C95593C951945                       ntfs       MEDIA                         
/dev/sda7        f306bef1-932e-4a87-89bb-96cd3f5fb5cf   ext4                                     
/dev/sda8        1a460ac1-52d7-4317-9973-48651478c162   swap                                     
/dev/sda9        9c7fe485-8922-453b-9ea0-6fdbe0673bbe   ext4                                     
============================ "mount | grep ^/dev  output: ===========================
Device           Mount_Point              Type       Options
/dev/sda7        /                        ext4       (rw,errors=remount-ro)
/dev/sda9        /home                    ext4       (rw)

================================ sda1/boot.ini: ================================
[boot loader]
timeout=0
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 /DETECTHAL
=========================== 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 /boot/grub/grubenv ]; then
  have_grubenv=true
  load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
  saved_entry=${prev_saved_entry}
  save_env saved_entry
  prev_saved_entry=
  save_env prev_saved_entry
fi
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
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
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/white
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry "Ubuntu, Linux 2.6.31-22-generic" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
 set quiet=1
 insmod ext2
 set root=(hd0,8)
 search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
 linux /boot/vmlinuz-2.6.31-22-generic root=UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf ro   quiet splash
 initrd /boot/initrd.img-2.6.31-22-generic
}
menuentry "Ubuntu, Linux 2.6.31-22-generic (recovery mode)" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
 insmod ext2
 set root=(hd0,8)
 search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
 linux /boot/vmlinuz-2.6.31-22-generic root=UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf ro single 
 initrd /boot/initrd.img-2.6.31-22-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
 set quiet=1
 insmod ext2
 set root=(hd0,8)
 search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
 linux /boot/vmlinuz-2.6.31-14-generic root=UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf ro   quiet splash
 initrd /boot/initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
 insmod ext2
 set root=(hd0,8)
 search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
 linux /boot/vmlinuz-2.6.31-14-generic root=UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf ro single 
 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+)" {
 linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
 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 d83c880a3c87e1bc
 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/sda8 during installation
UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf /               ext4    errors=remount-ro 0       1
# /home was on /dev/sda10 during installation
UUID=9c7fe485-8922-453b-9ea0-6fdbe0673bbe /home           ext4    defaults        0       2
# swap was on /dev/sda9 during installation
UUID=1a460ac1-52d7-4317-9973-48651478c162 none            swap    sw              0       0
=================== sda7: Location of files loaded by Grub: ===================

 140.9GB: boot/grub/core.img
 143.0GB: boot/grub/grub.cfg
 142.4GB: boot/initrd.img-2.6.31-14-generic
 144.8GB: boot/initrd.img-2.6.31-22-generic
 142.5GB: boot/vmlinuz-2.6.31-14-generic
 144.5GB: boot/vmlinuz-2.6.31-22-generic
 144.8GB: initrd.img
 142.4GB: initrd.img.old
 144.5GB: vmlinuz
 142.5GB: vmlinuz.old

**pleasurefish** · December 10th, 2010

and then i run with the instructions followed:

Code:

sudo grub-install /dev/sda
sudo update-grub

the XP system could login .
the setup havenot finished.

Thanks a lot . oldfred.

**oldfred** · December 10th, 2010

Not sure I totally understand. Did the reinstall of grub to the MBR fix your issues. The results.txt showed it was booting from sda8 but your install is in sda7. Perhaps you deleted a partition? The reinstall of grub that you then posted should have fixed that.

Partition table looks a whole lot better.

Glad testdisk was able to fix it.

**pleasurefish** · December 13th, 2010

i hurried to recover my lost data,and make no eye on this thread,sorry to response to your post so late,oldfred.it seems as that you had infered.the RESULTS.txt followed below.oh,i never del a partition,but i may del a partition in nonsense state.hope this helps you.

Code:

                Boot Info Script 0.55    dated February 15th, 2010                    

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

 => Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in 
    partition #7 for /boot/grub.

sda1: _________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows XP: Fat32
    Boot sector info:  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:       ntfs
    Boot sector type:  Windows XP
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files/dirs:   

sda6: _________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows XP
    Boot sector info:  According to the info in the boot sector, sda6 starts 
                       at sector 63.
    Operating System:  
    Boot files/dirs:   

sda7: _________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info:  
    Operating System:  Ubuntu 9.10
    Boot files/dirs:   /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda8: _________________________________________________________________________

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

sda9: _________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info:  
    Operating System:  
    Boot files/dirs:   

sda10: _________________________________________________________________________

    File system:       vfat
    Boot sector type:  MSWIN4.1: Fat 32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files/dirs:   

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

Drive: sda ___________________ _____________________________________________________

Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders, total 488397168 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0xf0b1ebb0

Partition  Boot         Start           End          Size  Id System

/dev/sda1    *             63    51,424,064    51,424,002   c W95 FAT32 (LBA)
/dev/sda2          51,424,065   488,392,064   436,968,000   f W95 Ext d (LBA)
/dev/sda5          51,424,128   212,041,934   160,617,807   7 HPFS/NTFS
/dev/sda6         212,041,998   274,358,069    62,316,072   7 HPFS/NTFS
/dev/sda7         274,358,133   304,351,424    29,993,292  83 Linux
/dev/sda8         304,351,488   308,351,609     4,000,122  82 Linux swap / Solaris
/dev/sda9         308,351,673   372,659,804    64,308,132  83 Linux
/dev/sda10        372,659,868   488,392,064   115,732,197   c W95 FAT32 (LBA)


blkid -c /dev/null: ____________________________________________________________

Device           UUID                                   TYPE       LABEL                         

/dev/sda10       046D-B7C4                              vfat       BACKUP                        
/dev/sda1        8886-CCB9                              vfat                                     
/dev/sda5        2A88274388270D3F                       ntfs       SOFTWARE                      
/dev/sda6        323C95593C951945                       ntfs       MEDIA                         
/dev/sda7        f306bef1-932e-4a87-89bb-96cd3f5fb5cf   ext4                                     
/dev/sda8        1a460ac1-52d7-4317-9973-48651478c162   swap                                     
/dev/sda9        9c7fe485-8922-453b-9ea0-6fdbe0673bbe   ext4                                     

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

Device           Mount_Point              Type       Options

/dev/sda7        /                        ext4       (rw,errors=remount-ro)
/dev/sda9        /home                    ext4       (rw)


================================ 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 

=========================== 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 /boot/grub/grubenv ]; then
  have_grubenv=true
  load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
  saved_entry=${prev_saved_entry}
  save_env saved_entry
  prev_saved_entry=
  save_env prev_saved_entry
fi
insmod ext2
set root=(hd0,7)
search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
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
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/white
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry "Ubuntu, Linux 2.6.31-22-generic" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
    set quiet=1
    insmod ext2
    set root=(hd0,7)
    search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
    linux    /boot/vmlinuz-2.6.31-22-generic root=UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf ro   quiet splash
    initrd    /boot/initrd.img-2.6.31-22-generic
}
menuentry "Ubuntu, Linux 2.6.31-22-generic (recovery mode)" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
    insmod ext2
    set root=(hd0,7)
    search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
    linux    /boot/vmlinuz-2.6.31-22-generic root=UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf ro single 
    initrd    /boot/initrd.img-2.6.31-22-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
    set quiet=1
    insmod ext2
    set root=(hd0,7)
    search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
    linux    /boot/vmlinuz-2.6.31-14-generic root=UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf ro   quiet splash
    initrd    /boot/initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
    insmod ext2
    set root=(hd0,7)
    search --no-floppy --fs-uuid --set f306bef1-932e-4a87-89bb-96cd3f5fb5cf
    linux    /boot/vmlinuz-2.6.31-14-generic root=UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf ro single 
    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+)" {
    linux16    /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
    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 fat
    set root=(hd0,1)
    search --no-floppy --fs-uuid --set 8886-ccb9
    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/sda8 during installation
UUID=f306bef1-932e-4a87-89bb-96cd3f5fb5cf /               ext4    errors=remount-ro 0       1
# /home was on /dev/sda10 during installation
UUID=9c7fe485-8922-453b-9ea0-6fdbe0673bbe /home           ext4    defaults        0       2
# swap was on /dev/sda9 during installation
UUID=1a460ac1-52d7-4317-9973-48651478c162 none            swap    sw              0       0

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


 140.7GB: boot/grub/core.img
 143.0GB: boot/grub/grub.cfg
 142.4GB: boot/initrd.img-2.6.31-14-generic
 144.8GB: boot/initrd.img-2.6.31-22-generic
 142.5GB: boot/vmlinuz-2.6.31-14-generic
 144.5GB: boot/vmlinuz-2.6.31-22-generic
 144.8GB: initrd.img
 142.4GB: initrd.img.old
 144.5GB: vmlinuz
 142.5GB: vmlinuz.old
=============================== StdErr Messages: ===============================

umount: /tmp/BootInfo1/sda10: device is busy.
        (In some cases useful info about processes that use
         the device is found by lsof(8) or fuser(1))

thank you for your selfless help.

**oldfred** · December 13th, 2010

Boot script looks normal to me. I can see you moved a partition around but the UUIDs seem to match fstab.

Does it boot ok now?

I do not recommend FAT for partitions anymore. NTFS is better for windows & shared partitions with windows. FAT has a limit of 4GB for files and does not have a journal.
Only if you have a xbox or need to format a small memory card for compatiblity with a camera or other device should you use FAT32.

**pleasurefish** · December 14th, 2010

Yes,it can boot ok now.

although the Audio card problem still exists.

the partition was ntfs,i think the WinPE(a recovery tool,we can install winXP in it)may format the C partition with the fat32 format.i would change the format some days later.

**oldfred** · December 14th, 2010

Glad you are working.

I do not know about audio issues.

My audio works under Ubuntu and under windows every time I installed an updated driver it would stop working. I found I had to unplug everything & plug it back in and the windows driver sensed it and worked. But not if already plugged in. The Linux driver just works. Some older versions of Ubuntu had the audio turned off (mute) or turned down and just setting volume up worked.