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I have one desktop(64-bit) and one old netbook (32-bit). Both of them have windows 7 (only). I have a usb hard disk which has ubuntu (64-bit) which boots without problems from the desktop and recently I installed ubuntu 32-bit (in the usb hd) in order to use them with my netbook. The problem is that although they boot with the desktop pc, when I try to boot from netbook I get the error:

unknown filesystem
grub rescue>_

when I give >ls I get only (hd0,msdos1),(hd0,...),... that is bios (I assume) can not see the internal hdd of the netbook. Any ideas to boot from the netbook? Also I provide some information which I got from ubuntu live cd (Try it choice) from my netbook.

              Boot Info Script 0.61      [1 April 2012]

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

=> Windows is installed in the MBR of /dev/sda. => Grub2 (v1.99) is installed in the MBR of /dev/sdb and looks at sector 1 of the same hard drive for core.img. core.img is at this location and looks in partition 112 for .

sda1: ______________________________________________________________________

File system:       vfat
Boot sector type:  Windows 7: FAT32
Boot sector info:  No errors found in the Boot Parameter Block.
Operating System:  Windows Vista
Boot files:        /Windows/System32/winload.exe

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

sdb1: ______________________________________________________________________

File system:       ext4
Boot sector type:  -
Boot sector info: 
Operating System:  
Boot files:        /grub/grub.cfg

sdb2: ______________________________________________________________________

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

sdb5: ______________________________________________________________________

File system:       ext4
Boot sector type:  -
Boot sector info: 
Operating System:  Ubuntu 14.04 LTS
Boot files:        /etc/fstab

sdb6: ______________________________________________________________________

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

sdb7: ______________________________________________________________________

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

sdb3: ______________________________________________________________________

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:        

sdb4: ______________________________________________________________________

File system:       ext4
Boot sector type:  -
Boot sector info: 
Operating System:  Ubuntu 14.04 LTS
Boot files:        /boot/grub/grub.cfg /etc/fstab

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

Drive: sda _________________________________________________________________

Disk /dev/sda: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders, total 234441648 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 6,146,047 6,144,000 12 Compaq diagnostics /dev/sda2 * 6,146,048 234,438,655 228,292,608 7 NTFS / exFAT / HPFS

Drive: sdb _________________________________________________________________

Disk /dev/sdb: 1000.2 GB, 1000170586112 bytes 255 heads, 63 sectors/track, 121597 cylinders, total 1953458176 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 2,048 976,895 974,848 83 Linux /dev/sdb2 978,942 272,461,823 271,482,882 5 Extended /dev/sdb5 978,944 71,233,535 70,254,592 83 Linux /dev/sdb6 71,235,584 264,648,703 193,413,120 83 Linux /dev/sdb7 264,650,752 272,461,823 7,811,072 82 Linux swap / Solaris /dev/sdb3 * 272,461,824 886,861,823 614,400,000 7 NTFS / exFAT / HPFS /dev/sdb4 886,861,824 1,082,174,323 195,312,500 83 Linux

"blkid" output: ____________________________________________________________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda1 0475-3980 vfat RECOVERY /dev/sda2 C2CC2F46CC2F33D7 ntfs
/dev/sdb1 79b97cb3-a4cc-48a6-afae-f0b5f052eec4 ext4
/dev/sdb3 F25855325854F737 ntfs External-Ntfs /dev/sdb4 13f706a5-bc41-4060-97c3-d83480b2bf32 ext4
/dev/sdb5 d58b8f4c-a995-433b-a117-7dc0e0335ee5 ext4
/dev/sdb6 faf6195b-ba23-4423-9e04-4a027e4da6a8 ext4
/dev/sdb7 f56eab16-08b1-4f42-b849-5844784cc067 swap
/dev/sr0 iso9660 Ubuntu 14.04 LTS i386

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

Device Mount_Point Type Options

/dev/loop0 /rofs squashfs (ro,noatime) /dev/sdb1 /media/ubuntu/79b97cb3-a4cc-48a6-afae-f0b5f052eec4 ext4 (rw,nosuid,nodev,uhelper=udisks2) /dev/sdb3 /media/ubuntu/External-Ntfs fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096) /dev/sdb4 /media/ubuntu/13f706a5-bc41-4060-97c3-d83480b2bf32 ext4 (rw,nosuid,nodev,uhelper=udisks2) /dev/sdb5 /media/ubuntu/d58b8f4c-a995-433b-a117-7dc0e0335ee5 ext4 (rw,nosuid,nodev,uhelper=udisks2) /dev/sdb6 /media/ubuntu/faf6195b-ba23-4423-9e04-4a027e4da6a8 ext4 (rw,nosuid,nodev,uhelper=udisks2) /dev/sr0 /cdrom iso9660 (ro,noatime)

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


#

DO NOT EDIT THIS FILE

#

It is automatically generated by grub-mkconfig using templates

from /etc/grub.d and settings from /etc/default/grub

#

BEGIN /etc/grub.d/05_debian_theme

set menu_color_normal=white/black set menu_color_highlight=black/light-gray if background_color 44,0,30; then clear fi

END /etc/grub.d/05_debian_theme

BEGIN /etc/grub.d/10_linux_proxy

function gfxmode { set gfxpayload="${1}" if [ "${1}" = "keep" ]; then set vt_handoff=vt.handoff=7 else set vt_handoff= fi } if [ "${recordfail}" != 1 ]; then if [ -e ${prefix}/gfxblacklist.txt ]; then if hwmatch ${prefix}/gfxblacklist.txt 3; then if [ ${match} = 0 ]; then set linux_gfx_mode=keep else set linux_gfx_mode=text fi else set linux_gfx_mode=text fi else set linux_gfx_mode=keep fi else set linux_gfx_mode=text fi export linux_gfx_mode

END /etc/grub.d/10_linux_proxy

BEGIN /etc/grub.d/11_Windows_proxy

END /etc/grub.d/11_Windows_proxy

BEGIN /etc/grub.d/40_custom_proxy

menuentry "Windows 7"{ insmod ntfs set root='hd0,2' search --no-floppy --fs-uuid --set 511C-46C3 drivemap -s (hd0) ${root} chainloader +1 } menuentry "Ubuntu 64-bit" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-d58b8f4c-a995-433b-a117-7dc0e0335ee5' { insmod gzio insmod part_msdos insmod ext2 set root='hd1,msdos1' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 79b97cb3-a4cc-48a6-afae-f0b5f052eec4 else search --no-floppy --fs-uuid --set=root 79b97cb3-a4cc-48a6-afae-f0b5f052eec4 fi linux /vmlinuz-3.13.0-24-generic root=UUID=d58b8f4c-a995-433b-a117-7dc0e0335ee5 ro quiet splash $vt_handoff initrd /initrd.img-3.13.0-24-generic } menuentry "ubuntu 32-bit"{ GRUB_GFXMODE=640x480 insmod gzio insmod part_msdos insmod ext2 set root='hd1,msdos4' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos4 --hint-efi=hd1,msdos4 --hint-baremetal=ahci1,msdos4 13f706a5-bc41-4060-97c3-d83480b2bf32 else search --no-floppy --fs-uuid --set=root 13f706a5-bc41-4060-97c3-d83480b2bf32 fi linux /boot/vmlinuz-3.13.0-24-generic root=UUID=13f706a5-bc41-4060-97c3-d83480b2bf32 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.13.0-24-generic }

END /etc/grub.d/40_custom_proxy

BEGIN /etc/grub.d/42_linux_xen

END /etc/grub.d/42_linux_xen

BEGIN /etc/grub.d/43_memtest86+_proxy

END /etc/grub.d/43_memtest86+_proxy

BEGIN /etc/grub.d/44_os-prober

menuentry 'Windows 7 (loader) (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-1EF3-52B5' { insmod part_msdos insmod fat set root='hd0,msdos1' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 1EF3-52B5 else search --no-floppy --fs-uuid --set=root 1EF3-52B5 fi parttool ${root} hidden- chainloader +1 } menuentry 'Windows 7 (loader) (on /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-chain-511C-46C3' { insmod part_msdos insmod fat set root='hd0,msdos2' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 511C-46C3 else search --no-floppy --fs-uuid --set=root 511C-46C3 fi parttool ${root} hidden- chainloader +1 } menuentry 'Ubuntu 11.10 (11.10) (on /dev/sda3)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-7198b994-27cc-432b-878d-7644241bd461' { insmod part_msdos insmod ext2 set root='hd0,msdos3' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 7198b994-27cc-432b-878d-7644241bd461 else search --no-floppy --fs-uuid --set=root 7198b994-27cc-432b-878d-7644241bd461 fi linux /vmlinuz root=/dev/sda3 initrd /initrd.img } submenu 'Advanced options for Ubuntu 11.10 (11.10) (on /dev/sda3)' $menuentry_id_option 'osprober-gnulinux-advanced-7198b994-27cc-432b-878d-7644241bd461' { menuentry 'Ubuntu 11.10 (11.10) (on /dev/sda3)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz--7198b994-27cc-432b-878d-7644241bd461' { insmod part_msdos insmod ext2 set root='hd0,msdos3' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 7198b994-27cc-432b-878d-7644241bd461 else search --no-floppy --fs-uuid --set=root 7198b994-27cc-432b-878d-7644241bd461 fi linux /vmlinuz root=/dev/sda3 initrd /initrd.img } menuentry 'Ubuntu 11.10 (11.10) (on /dev/sda3)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz--7198b994-27cc-432b-878d-7644241bd461' { insmod part_msdos insmod ext2 set root='hd0,msdos3' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 7198b994-27cc-432b-878d-7644241bd461 else search --no-floppy --fs-uuid --set=root 7198b994-27cc-432b-878d-7644241bd461 fi linux /vmlinuz root=/dev/sda3 initrd /initrd.img } menuentry 'Ubuntu 11.10 (11.10) (on /dev/sda3)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.0.0-13-generic--7198b994-27cc-432b-878d-7644241bd461' { insmod part_msdos insmod ext2 set root='hd0,msdos3' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 7198b994-27cc-432b-878d-7644241bd461 else search --no-floppy --fs-uuid --set=root 7198b994-27cc-432b-878d-7644241bd461 fi linux /boot/vmlinuz-3.0.0-13-generic root=/dev/sda3 initrd /boot/initrd.img-3.0.0-13-generic } menuentry 'Ubuntu 11.10 (11.10) (on /dev/sda3)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz--7198b994-27cc-432b-878d-7644241bd461' { insmod part_msdos insmod ext2 set root='hd0,msdos3' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 7198b994-27cc-432b-878d-7644241bd461 else search --no-floppy --fs-uuid --set=root 7198b994-27cc-432b-878d-7644241bd461 fi linux /vmlinuz root=/dev/sda3 initrd /initrd.img } menuentry 'Ubuntu 11.10 (11.10) (on /dev/sda3)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz--7198b994-27cc-432b-878d-7644241bd461' { insmod part_msdos insmod ext2 set root='hd0,msdos3' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 7198b994-27cc-432b-878d-7644241bd461 else search --no-floppy --fs-uuid --set=root 7198b994-27cc-432b-878d-7644241bd461 fi linux /vmlinuz root=/dev/sda3 initrd /initrd.img } }

menuentry 'Ubuntu 14.04 LTS (14.04) (on /dev/sdb4)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-13f706a5-bc41-4060-97c3-d83480b2bf32' { insmod part_msdos insmod ext2 set root='hd1,msdos4' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos4 --hint-efi=hd1,msdos4 --hint-baremetal=ahci1,msdos4 13f706a5-bc41-4060-97c3-d83480b2bf32 else search --no-floppy --fs-uuid --set=root 13f706a5-bc41-4060-97c3-d83480b2bf32 fi linux /boot/vmlinuz-3.13.0-24-generic root=UUID=13f706a5-bc41-4060-97c3-d83480b2bf32 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.13.0-24-generic } submenu 'Advanced options for Ubuntu 14.04 LTS (14.04) (on /dev/sdb4)' $menuentry_id_option 'osprober-gnulinux-advanced-13f706a5-bc41-4060-97c3-d83480b2bf32' { menuentry 'Ubuntu 32-bit (on /dev/sdb4)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-3.13.0-24-generic--13f706a5-bc41-4060-97c3-d83480b2bf32' { insmod part_msdos insmod ext2 set root='hd1,msdos4' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos4 --hint-efi=hd1,msdos4 --hint-baremetal=ahci1,msdos4 13f706a5-bc41-4060-97c3-d83480b2bf32 else search --no-floppy --fs-uuid --set=root 13f706a5-bc41-4060-97c3-d83480b2bf32 fi linux /boot/vmlinuz-3.13.0-24-generic root=UUID=13f706a5-bc41-4060-97c3-d83480b2bf32 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.13.0-24-generic } }

set timeout_style=menu if [ "${timeout}" = 0 ]; then set timeout=10 fi

END /etc/grub.d/44_os-prober

BEGIN /etc/grub.d/45_uefi-firmware

END /etc/grub.d/45_uefi-firmware

BEGIN /etc/grub.d/46_custom_proxy

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/46_custom_proxy

BEGIN /etc/grub.d/47_custom

if [ -f ${config_directory}/custom.cfg ]; then source ${config_directory}/custom.cfg elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi

END /etc/grub.d/47_custom

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

       GiB - GB             File                                 Fragment(s)

=============================== sdb5/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).

#

/ was on /dev/sdb5 during installation

UUID=d58b8f4c-a995-433b-a117-7dc0e0335ee5 / ext4 errors=remount-ro 0 1

/boot was on /dev/sdb1 during installation

UUID=79b97cb3-a4cc-48a6-afae-f0b5f052eec4 /boot ext4 defaults 0 2

/home was on /dev/sdb6 during installation

UUID=faf6195b-ba23-4423-9e04-4a027e4da6a8 /home ext4 defaults 0 2

swap was on /dev/sdb7 during installation

UUID=f56eab16-08b1-4f42-b849-5844784cc067 none swap sw 0 0

=========================== sdb4/boot/grub/grub.cfg: ===========================


#

DO NOT EDIT THIS FILE

#

It is automatically generated by grub-mkconfig using templates

from /etc/grub.d and settings from /etc/default/grub

#

BEGIN /etc/grub.d/00_header

if [ -s $prefix/grubenv ]; then set have_grubenv=true load_env fi if [ "${next_entry}" ] ; then set default="${next_entry}" set next_entry= save_env next_entry set boot_once=true else set default="0" fi

if [ x"${feature_menuentry_id}" = xy ]; then menuentry_id_option="--id" else menuentry_id_option="" fi

export menuentry_id_option

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 } function load_video { if [ x$feature_all_video_module = xy ]; then insmod all_video else insmod efi_gop insmod efi_uga insmod ieee1275_fb insmod vbe insmod vga insmod video_bochs insmod video_cirrus fi }

terminal_input console terminal_output console if [ "${recordfail}" = 1 ] ; then set timeout=-1 else if [ x$feature_timeout_style = xy ] ; then set timeout_style=menu set timeout=5 # Fallback normal timeout code in case the timeout_style feature is # unavailable. else set timeout=5 fi 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 if background_color 44,0,30; then clear fi

END /etc/grub.d/05_debian_theme

BEGIN /etc/grub.d/20_linux_xen

END /etc/grub.d/20_linux_xen

BEGIN /etc/grub.d/21_memtest86+_proxy

END /etc/grub.d/21_memtest86+_proxy

BEGIN /etc/grub.d/30_os-prober_proxy

set timeout_style=menu if [ "${timeout}" = 0 ]; then set timeout=10 fi

END /etc/grub.d/30_os-prober_proxy

BEGIN /etc/grub.d/31_uefi-firmware

END /etc/grub.d/31_uefi-firmware

BEGIN /etc/grub.d/40_custom_proxy

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.

menuentry "Windows 7(64-bit)"{ insmod ntfs set root='hd0,2' search --no-floppy --fs-uuid --set 511C-46C3 drivemap -s (hd0) ${root} chainloader +1 } menuentry "Ubuntu 64-bit"{

GRUB_GFXMODE=640x480
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  79b97cb3-a4cc-48a6-afae-f0b5f052eec4
else
  search --no-floppy --fs-uuid --set=root 79b97cb3-a4cc-48a6-afae-f0b5f052eec4
fi
linux   /vmlinuz-3.13.0-24-generic root=UUID=d58b8f4c-a995-433b-a117-7dc0e0335ee5 ro  quiet splash $vt_handoff
initrd  /initrd.img-3.13.0-24-generic

}

END /etc/grub.d/40_custom_proxy

BEGIN /etc/grub.d/41_linux_proxy

function gfxmode { set gfxpayload="${1}" if [ "${1}" = "keep" ]; then set vt_handoff=vt.handoff=7 else set vt_handoff= fi } if [ "${recordfail}" != 1 ]; then if [ -e ${prefix}/gfxblacklist.txt ]; then if hwmatch ${prefix}/gfxblacklist.txt 3; then if [ ${match} = 0 ]; then set linux_gfx_mode=keep else set linux_gfx_mode=text fi else set linux_gfx_mode=text fi else set linux_gfx_mode=keep fi else set linux_gfx_mode=text fi export linux_gfx_mode

END /etc/grub.d/41_linux_proxy

BEGIN /etc/grub.d/42_custom_proxy

menuentry "Ubuntu 32-bit" --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-13f706a5-bc41-4060-97c3-d83480b2bf32' { GRUB_GFXMODE=640x480 insmod gzio insmod part_msdos insmod ext2 set root='hd0,msdos1' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos4 --hint-efi=hd1,msdos4 --hint-baremetal=ahci1,msdos4 13f706a5-bc41-4060-97c3-d83480b2bf32 else search --no-floppy --fs-uuid --set=root 13f706a5-bc41-4060-97c3-d83480b2bf32 fi linux /boot/vmlinuz-3.13.0-24-generic root=UUID=13f706a5-bc41-4060-97c3-d83480b2bf32 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.13.0-24-generic }

END /etc/grub.d/42_custom_proxy

BEGIN /etc/grub.d/43_custom

if [ -f ${config_directory}/custom.cfg ]; then source ${config_directory}/custom.cfg elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi

### END /etc/grub.d/43_custom ###

=============================== sdb4/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).

#

/ was on /dev/sdb4 during installation

UUID=13f706a5-bc41-4060-97c3-d83480b2bf32 / ext4 errors=remount-ro 0 1

swap was on /dev/sdb7 during installation

UUID=f56eab16-08b1-4f42-b849-5844784cc067 none swap sw 0 0

=================== sdb4: Location of files loaded by Grub: ====================

       GiB - GB             File                                 Fragment(s)

======================== Unknown MBRs/Boot Sectors/etc: ========================

Unknown BootLoader on sdb2

00000000 05 75 61 1e 60 f3 18 f2 6e d3 9f 7d 7f 75 f6 cb |.ua....n..}.u..| 00000010 5f d5 1f 78 3c 7a 91 f9 6e f7 d9 ac 21 c6 a6 4b |_..x<z..n...!..K| 00000020 f4 53 18 37 f0 92 1f 06 e9 31 8c 77 99 25 99 c2 |.S.7.....1.w.%..| 00000030 f4 0b 97 07 d2 13 69 b4 06 63 58 c9 4c 56 10 fa |......i..cX.LV..| 00000040 36 ad d7 a6 ad e5 d9 36 9c 3d 7a db 0c 5e e8 03 |6......6.=z..^..| 00000050 b2 61 61 41 92 b2 e7 b7 d1 02 28 a6 b3 10 5c 97 |.aaA......(...\.| 00000060 52 58 c4 58 26 90 88 1b ee d2 9a 4d 52 90 52 21 |RX.X&......MR.R!| 00000070 19 ca 90 1a 9a 0f d4 8e 3c 51 89 cd f6 dd b0 2b |........<Q.....+| 00000080 44 e8 ab 8a 95 cf e5 d5 31 73 da 66 9a 3b 8f 07 |D.......1s.f.;..| 00000090 e5 de 11 be 76 6a 61 f2 da b9 e4 1f 02 4d e3 a7 |....vja......M..| 000000a0 49 51 c0 58 d5 02 fa 5e ed 74 e8 fd cd 4e c7 ef |IQ.X...^.t...N..| 000000b0 e1 a3 73 18 d2 12 1f 87 21 7d e2 77 43 e9 39 37 |..s.....!}.wC.97| 000000c0 fa aa 69 cb 87 38 3c 53 ce 73 5d e2 e7 5e 32 66 |..i..8<S.s]..^2f| 000000d0 a7 ac 09 10 ad 08 48 47 13 ac 01 98 09 74 90 34 |......HG.....t.4| 000000e0 6b 9e 68 c6 35 36 aa e5 7f 68 41 28 19 40 a5 ed |k.h.56...hA(.@..| 000000f0 0f 14 1a ec c8 58 dd 3d 66 7d ce 98 0e ab 70 8d |.....X.=f}....p.| 00000100 16 cc bf e9 e1 37 22 7c 36 9f 2e 19 84 a0 65 bd |.....7"|6.....e.| 00000110 34 1b ad ca 6a f5 64 65 36 e9 5a 14 98 6f a0 76 |4...j.de6.Z..o.v| 00000120 e1 b3 d7 28 ae d4 4f 02 9a c5 53 74 11 93 35 ba |...(..O...St..5.| 00000130 88 f3 0c f1 d3 4c f3 5c 14 ab 2e 73 06 7b c3 f4 |.....L.\...s.{..| 00000140 90 61 e6 e9 d4 92 7a 95 0c 50 d1 0a 60 70 52 3d |.a....z..P..pR=| 00000150 64 81 d0 15 41 61 16 01 75 cc 34 88 b5 73 e9 ac |d...Aa..u.4..s..| 00000160 fd e8 d9 9c b7 cb 1a b8 d8 5d a8 24 8f 5a ff 64 |.........].$.Z.d| 00000170 a8 43 6b 92 65 ed 32 bc 73 77 73 ae fc 7e c8 54 |.Ck.e.2.sws..~.T| 00000180 c4 a8 57 8d 77 3e 65 d2 5b fd 70 dc 06 ef f7 db |..W.w>e.[.p.....| 00000190 ed 13 fd 6e ef 44 97 fc 38 df 04 a2 bd 18 d5 09 |...n.D..8.......| 000001a0 45 bb de a8 81 7a e4 6b f1 f0 1a 7a d7 30 33 8d |E....z.k...z.03.| 000001b0 c1 e4 d1 a6 2e 01 f3 5c 13 6e 2b c2 35 b2 00 ee |........n+.5...| 000001c0 33 3c 83 fe ff ff 02 00 00 00 00 00 30 04 00 fe |3<..........0...| 000001d0 ff ff 05 fe ff ff 02 00 30 04 00 48 87 0b 00 00 |........0..H....| 000001e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00000200

========= Devices which don't seem to have a corresponding hard drive: =========

sdc

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

cat: /tmp/BootInfo-F2Q4oQmG/Tmp_Log: No such file or directory cat: /tmp/BootInfo-F2Q4oQmG/Tmp_Log: No such file or directory No volume groups found

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When adding large blocks of text from your terminal, the easiest way to get readable format is to paste the text in, highlight the added text, and press ctrl-K –  Charles Green Jul 10 at 14:17

1 Answer 1

I need you to give me a picture of your computer's hard drive in GParted using the Live key. This way I can diagnose your problem. You may have completely lost your EFI Partition, like what happened to me. If this happens, I will need to provide you the files to be able to boot into Ubuntu to further fix the prolem.

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