Hi drs305,

Sorry to bring up an old thread. I've just read all 20 pages of the thread hoping someone would have something similar. The closest was post 126 (your reply on 129) as I got the same error. However, he/she actually mounted incorrectly, when I didn't (from what I can tell).

Here is a link to my original thread where you can find the problem: http://ubuntuforums.org/showthread.php?t=1928297

So that you don't have to find post 126: I am following your procedure but cannot chroot. I get the error:

Code:
chroot: failed to run command `/bin/bash': No such file or directory
Updated BIS after attempting your steps without finishing:
Code:
                   Boot Info Script 0.60      [17 May 2011]


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

 => Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of 
    the same hard drive for core.img. core.img is at this location and looks 
    for (,msdos3)/boot/grub on this drive.
 => Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sdb.

sda1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista/7: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /bootmgr /Boot/BCD

sda2: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista/7: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  Windows 7
    Boot files:        /bootmgr /boot/BCD /Windows/System32/winload.exe

sda3: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  Grub Legacy
    Boot sector info:  Grub Legacy (v0.97) is installed in the boot sector 
                       of sda3 and looks at sector 1166426584 of the same 
                       hard drive for the stage2 file.  A stage2 file is at 
                       this location on /dev/sda.  Stage2 looks on partition 
                       #3 for /boot/grub/menu.lst.
    Operating System:  Ubuntu 11.10
    Boot files:        /etc/fstab /boot/grub/core.img

sda4: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Windows 7: FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sdb1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  SYSLINUX 4.05 2011-12-09
    Boot sector info:  Syslinux looks at sector 30570 of /dev/sdb1 for its 
                       second stage. SYSLINUX is installed in the  directory. 
                       The integrity check of the ADV area failed. No errors 
                       found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /boot/grub/grub.cfg /syslinux/syslinux.cfg 
                       /efi/boot/bootx64.efi /ldlinux.sys

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

Drive: sda _____________________________________________________________________

Disk /dev/sda: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders, total 1250263728 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1    *          2,048       409,599       407,552   7 NTFS / exFAT / HPFS
/dev/sda2             409,600   830,619,647   830,210,048   7 NTFS / exFAT / HPFS
/dev/sda3         830,619,648 1,250,050,047   419,430,400  83 Linux
/dev/sda4       1,250,050,048 1,250,261,679       211,632   c W95 FAT32 (LBA)


Drive: sdb _____________________________________________________________________

Disk /dev/sdb: 4018 MB, 4018143232 bytes
84 heads, 20 sectors/track, 4671 cylinders, total 7847936 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1    *          1,112     7,847,935     7,846,824   c W95 FAT32 (LBA)


"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/loop0                                              squashfs   
/dev/sda1        1686025D86023DAD                       ntfs       SYSTEM
/dev/sda2        D0DC4AE4DC4AC506                       ntfs       
/dev/sda3        06064391-c4c4-44c9-a738-5f8925497cff   ext4       
/dev/sda4        2802-C848                              vfat       HP_TOOLS
/dev/sdb1        1AE1-1862                              vfat       PENDRIVE

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/loop0       /rofs                    squashfs   (ro,noatime)
/dev             /mnt/temp/dev            none       (rw,bind)
/dev/pts         /mnt/temp/dev/pts        none       (rw,bind)
/dev/sda3        /mnt/temp                ext4       (rw)
/dev/sdb1        /cdrom                   vfat       (rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)


=============================== sda3/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' 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/sda3 during installation
UUID=06064391-c4c4-44c9-a738-5f8925497cff /               ext4    errors=remount-ro 0       1
--------------------------------------------------------------------------------

=================== sda3: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)

               =                boot/grub/core.img                             1
               =                boot/grub/stage2                               1

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

--------------------------------------------------------------------------------

if loadfont /boot/grub/font.pf2 ; then
    set gfxmode=auto
    insmod efi_gop
    insmod efi_uga
    insmod gfxterm
    terminal_output gfxterm
fi

set menu_color_normal=white/black
set menu_color_highlight=black/light-gray

menuentry "Try Ubuntu without installing" {
    set gfxpayload=keep
    linux    /casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
    initrd    /casper/initrd.lz
}
menuentry "Install Ubuntu" {
    set gfxpayload=keep
    linux    /casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash --
    initrd    /casper/initrd.lz
}
menuentry "Check disc for defects" {
    set gfxpayload=keep
    linux    /casper/vmlinuz  boot=casper integrity-check quiet splash --
    initrd    /casper/initrd.lz
}
--------------------------------------------------------------------------------

========================= sdb1/syslinux/syslinux.cfg: ==========================

--------------------------------------------------------------------------------
# D-I config version 2.0
include menu.cfg
default vesamenu.c32
prompt 0
timeout 50

# If you would like to use the new menu and be presented with the option to install or run from USB at startup, remove # from the following line. This line was commented out (by request of many) to allow the old menu to be presented and to enable booting straight into the Live Environment! 
# ui gfxboot bootlogo
--------------------------------------------------------------------------------

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

           GiB - GB             File                                 Fragment(s)

            ?? = ??             boot/grub/grub.cfg                             1

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

           GiB - GB             File                                 Fragment(s)

            ?? = ??             ldlinux.sys                                    1
            ?? = ??             syslinux/chain.c32                             1
            ?? = ??             syslinux/gfxboot.c32                           1
            ?? = ??             syslinux/syslinux.cfg                          1
            ?? = ??             syslinux/vesamenu.c32                          1

============== sdb1: Version of COM32(R) files used by Syslinux: ===============

 syslinux/chain.c32                 :  COM32R module (v4.xx)
 syslinux/gfxboot.c32               :  COM32R module (v4.xx)
 syslinux/vesamenu.c32              :  COM32R module (v4.xx)

=============================== StdErr Messages: ===============================

xz: (stdin): Compressed data is corrupt
awk: cmd. line:36: Math support is not compiled in
awk: cmd. line:36: Math support is not compiled in
bootinfoscript: line 1656: [: 2.73495e+09: integer expression expected