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Thread: Ubuntu 10.10 does not boot from external USB HDD

  1. #1
    Join Date
    Jul 2009
    Beans
    6

    Ubuntu 10.10 does not boot from external USB HDD

    I Installed Ubuntu 10.10 on an external USB Disk Drive - I had chosen to install the boot loader on this drive. When I tried to boot from this drive, I get the the following message:

    error: unknown filesystem

    after that I get "grub rescue>" prompt

    The install was done on /dev/sdb2

    I have also tried update-grub using ubuntu 10.04 that i have on my internal drive. It did recognize that I had a kernel on the external drive but still no luck booting. This time i get.

    error: no such device d4a3cb16-37b6-416c-a3bc-4f8d03318e28
    error: unknown file system
    error: you need to load the kernel first

    Note that the long device name is the same as the mount point when i do a "df"

  2. #2
    Join Date
    Aug 2009
    Location
    United States
    Beans
    4,459
    Distro
    Ubuntu Development Release

    Re: Ubuntu 10.10 does not boot from external USB HDD

    Go to this web site and download the script to DESKTOP and then run the code below in a terminal and it will put a file named RESULTS on your desktop. Copy and paste it to your thread (after copy and paste highlight and click on the # sign in upper right of message box.
    SourceForge.net: Boot Info Script - Project Web Hosting - Open Source Software
    Code:
     sudo bash ~/Desktop/boot_info_script*.sh
    A lot or users have the ability to read this file now and help you.
    Boot problems are not usually a difficult item to repair.
    Remember hence where you come and pass it down.
    Ubuntu Forums member #899097 and Ubuntu Member:
    http://www.ubuntupocketguide.com/index_main.html
    Main Page -

  3. #3
    Join Date
    Jul 2009
    Beans
    6

    Re: Ubuntu 10.10 does not boot from external USB HDD

    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 #5 for /boot/grub.
    => Grub 2 is installed in the MBR of /dev/sdb and looks on the same drive in
    partition #2 for (,msdos2)/boot/grub.

    sda1: __________________________________________________ _______________________

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

    sda2: __________________________________________________ _______________________

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

    sda3: __________________________________________________ _______________________

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

    sda5: __________________________________________________ _______________________

    File system: ext4
    Boot sector type: -
    Boot sector info:
    Operating System: Ubuntu 10.04.1 LTS
    Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

    sda6: __________________________________________________ _______________________

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

    sda4: __________________________________________________ _______________________

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

    sdb1: __________________________________________________ _______________________

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

    sdb2: __________________________________________________ _______________________

    File system: ext4
    Boot sector type: -
    Boot sector info:
    Operating System: Ubuntu 10.10
    Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

    sdb3: __________________________________________________ _______________________

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

    sdb5: __________________________________________________ _______________________

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

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

    Drive: sda ___________________ __________________________________________________ ___

    Disk /dev/sda: 160.0 GB, 160041885696 bytes
    255 heads, 63 sectors/track, 19457 cylinders, total 312581808 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 * 2,048 206,847 204,800 7 HPFS/NTFS
    /dev/sda2 206,848 204,799,999 204,593,152 7 HPFS/NTFS
    /dev/sda3 204,804,094 236,052,479 31,248,386 5 Extended
    /dev/sda5 204,804,096 234,098,687 29,294,592 83 Linux
    /dev/sda6 234,100,736 236,052,479 1,951,744 82 Linux swap / Solaris
    /dev/sda4 236,052,480 312,578,047 76,525,568 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 63 737,287,109 737,287,047 7 HPFS/NTFS
    /dev/sdb2 * 737,288,192 854,474,751 117,186,560 83 Linux
    /dev/sdb3 854,476,798 858,380,287 3,903,490 5 Extended
    /dev/sdb5 854,476,800 858,380,287 3,903,488 82 Linux swap / Solaris


    blkid -c /dev/null: __________________________________________________ __________

    Device UUID TYPE LABEL

    /dev/sda1 029226F29226EA3D ntfs System Reserved
    /dev/sda2 F23CB6F53CB6B447 ntfs fariddata
    /dev/sda3: PTTYPE="dos"
    /dev/sda4 E4E2E467E2E44002 ntfs
    /dev/sda5 f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ext4
    /dev/sda6 62af4661-238d-459b-9ac8-ebf3dbe41c83 swap
    /dev/sda: PTTYPE="dos"
    /dev/sdb1 FA148B80148B3E9F ntfs farid 500GB
    /dev/sdb2 d4a3cb16-37b6-4168-a885-a6cdbfb4bea4 ext4
    /dev/sdb3: PTTYPE="dos"
    /dev/sdb5 c278ab48-7519-4154-bdee-287de4131093 swap
    /dev/sdb: PTTYPE="dos"

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

    Device Mount_Point Type Options

    /dev/sda5 / ext4 (rw,errors=remount-ro)
    /dev/sdb2 /media/d4a3cb16-37b6-4168-a885-a6cdbfb4bea4 ext4 (rw,nosuid,nodev,uhelper=udisks)
    /dev/sdb1 /media/farid 500GB fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)


    =========================== sda5/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 ${boot_once} ]; then save_env recordfail; fi; fi
    }
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    if loadfont /usr/share/grub/unicode.pf2 ; then
    set gfxmode=640x480
    insmod gfxterm
    insmod vbe
    if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
    fi
    fi
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    set locale_dir=($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 2.6.32-25-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-25-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro quiet splash
    initrd /boot/initrd.img-2.6.32-25-generic
    }
    menuentry 'Ubuntu, with Linux 2.6.32-25-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    echo 'Loading Linux 2.6.32-25-generic ...'
    linux /boot/vmlinuz-2.6.32-25-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro single
    echo 'Loading initial ramdisk ...'
    initrd /boot/initrd.img-2.6.32-25-generic
    }
    menuentry 'Ubuntu, with Linux 2.6.32-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-24-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro quiet splash
    initrd /boot/initrd.img-2.6.32-24-generic
    }
    menuentry 'Ubuntu, with Linux 2.6.32-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    echo 'Loading Linux 2.6.32-24-generic ...'
    linux /boot/vmlinuz-2.6.32-24-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro single
    echo 'Loading initial ramdisk ...'
    initrd /boot/initrd.img-2.6.32-24-generic
    }
    menuentry 'Ubuntu, with Linux 2.6.32-23-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-23-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro quiet splash
    initrd /boot/initrd.img-2.6.32-23-generic
    }
    menuentry 'Ubuntu, with Linux 2.6.32-23-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    echo 'Loading Linux 2.6.32-23-generic ...'
    linux /boot/vmlinuz-2.6.32-23-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro single
    echo 'Loading initial ramdisk ...'
    initrd /boot/initrd.img-2.6.32-23-generic
    }
    ### END /etc/grub.d/10_linux ###

    ### BEGIN /etc/grub.d/20_memtest86+ ###
    menuentry "Memory test (memtest86+)" {
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux16 /boot/memtest86+.bin
    }
    menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod ext2
    set root='(hd0,5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux16 /boot/memtest86+.bin console=ttyS0,115200n8
    }
    ### END /etc/grub.d/20_memtest86+ ###

    ### BEGIN /etc/grub.d/30_os-prober ###
    menuentry "Windows 7 (loader) (on /dev/sda1)" {
    insmod ntfs
    set root='(hd0,1)'
    search --no-floppy --fs-uuid --set 029226f29226ea3d
    chainloader +1
    }
    menuentry "Ubuntu, with Linux 2.6.35-22-generic (on /dev/sdb2)" {
    insmod ext2
    set root='(hd1,2)'
    search --no-floppy --fs-uuid --set d4a3cb16-37b6-4168-a885-a6cdbfb4bea4
    linux /boot/vmlinuz-2.6.35-22-generic root=UUID=d4a3cb16-37b6-4168-a885-a6cdbfb4bea4 ro quiet splash
    initrd /boot/initrd.img-2.6.35-22-generic
    }
    menuentry "Ubuntu, with Linux 2.6.35-22-generic (recovery mode) (on /dev/sdb2)" {
    insmod ext2
    set root='(hd1,2)'
    search --no-floppy --fs-uuid --set d4a3cb16-37b6-4168-a885-a6cdbfb4bea4
    linux /boot/vmlinuz-2.6.35-22-generic root=UUID=d4a3cb16-37b6-4168-a885-a6cdbfb4bea4 ro single
    initrd /boot/initrd.img-2.6.35-22-generic
    }
    menuentry "Ubuntu, with Linux 2.6.35-22-generic (on /dev/sdc1)" {
    insmod ext2
    set root='(hd2,1)'
    search --no-floppy --fs-uuid --set 43a7887e-a6c2-4ebc-a3bc-4f8d03318e28
    linux /boot/vmlinuz-2.6.35-22-generic root=UUID=43a7887e-a6c2-4ebc-a3bc-4f8d03318e28 ro quiet splash
    initrd /boot/initrd.img-2.6.35-22-generic
    }
    menuentry "Ubuntu, with Linux 2.6.35-22-generic (recovery mode) (on /dev/sdc1)" {
    insmod ext2
    set root='(hd2,1)'
    search --no-floppy --fs-uuid --set 43a7887e-a6c2-4ebc-a3bc-4f8d03318e28
    linux /boot/vmlinuz-2.6.35-22-generic root=UUID=43a7887e-a6c2-4ebc-a3bc-4f8d03318e28 ro single
    initrd /boot/initrd.img-2.6.35-22-generic
    }
    ### 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 ###

    =============================== 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 nodev,noexec,nosuid 0 0
    # / was on /dev/sda5 during installation
    UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 / ext4 errors=remount-ro 0 1
    # swap was on /dev/sda6 during installation
    UUID=62af4661-238d-459b-9ac8-ebf3dbe41c83 none swap sw 0 0

    =================== sda5: Location of files loaded by Grub: ===================


    113.5GB: boot/grub/core.img
    108.9GB: boot/grub/grub.cfg
    116.6GB: boot/initrd.img-2.6.32-23-generic
    115.4GB: boot/initrd.img-2.6.32-24-generic
    116.7GB: boot/initrd.img-2.6.32-25-generic
    116.6GB: boot/vmlinuz-2.6.32-23-generic
    115.2GB: boot/vmlinuz-2.6.32-24-generic
    116.6GB: boot/vmlinuz-2.6.32-25-generic
    116.7GB: initrd.img
    115.4GB: initrd.img.old
    116.6GB: vmlinuz
    115.2GB: vmlinuz.old

    =========================== sdb2/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 $prefix/grubenv ]; then
    set have_grubenv=true
    load_env
    fi
    set default="0"
    if [ "${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
    }

    function load_video {
    insmod vbe
    insmod vga
    }

    insmod part_msdos
    insmod ext2
    set root='(hd1,msdos2)'
    search --no-floppy --fs-uuid --set d4a3cb16-37b6-4168-a885-a6cdbfb4bea4
    if loadfont /usr/share/grub/unicode.pf2 ; then
    set gfxmode=640x480
    load_video
    insmod gfxterm
    fi
    terminal_output gfxterm
    insmod part_msdos
    insmod ext2
    set root='(hd1,msdos2)'
    search --no-floppy --fs-uuid --set d4a3cb16-37b6-4168-a885-a6cdbfb4bea4
    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 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod part_msdos
    insmod ext2
    set root='(hd1,msdos2)'
    search --no-floppy --fs-uuid --set d4a3cb16-37b6-4168-a885-a6cdbfb4bea4
    linux /boot/vmlinuz-2.6.35-22-generic root=UUID=d4a3cb16-37b6-4168-a885-a6cdbfb4bea4 ro quiet splash
    initrd /boot/initrd.img-2.6.35-22-generic
    }
    menuentry 'Ubuntu, with Linux 2.6.35-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod part_msdos
    insmod ext2
    set root='(hd1,msdos2)'
    search --no-floppy --fs-uuid --set d4a3cb16-37b6-4168-a885-a6cdbfb4bea4
    echo 'Loading Linux 2.6.35-22-generic ...'
    linux /boot/vmlinuz-2.6.35-22-generic root=UUID=d4a3cb16-37b6-4168-a885-a6cdbfb4bea4 ro single
    echo 'Loading initial ramdisk ...'
    initrd /boot/initrd.img-2.6.35-22-generic
    }
    ### END /etc/grub.d/10_linux ###

    ### BEGIN /etc/grub.d/20_linux_xen ###
    ### END /etc/grub.d/20_linux_xen ###

    ### BEGIN /etc/grub.d/20_memtest86+ ###
    menuentry "Memory test (memtest86+)" {
    insmod part_msdos
    insmod ext2
    set root='(hd1,msdos2)'
    search --no-floppy --fs-uuid --set d4a3cb16-37b6-4168-a885-a6cdbfb4bea4
    linux16 /boot/memtest86+.bin
    }
    menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod part_msdos
    insmod ext2
    set root='(hd1,msdos2)'
    search --no-floppy --fs-uuid --set d4a3cb16-37b6-4168-a885-a6cdbfb4bea4
    linux16 /boot/memtest86+.bin console=ttyS0,115200n8
    }
    ### END /etc/grub.d/20_memtest86+ ###

    ### BEGIN /etc/grub.d/30_os-prober ###
    menuentry "Windows 7 (loader) (on /dev/sda1)" {
    insmod part_msdos
    insmod ntfs
    set root='(hd0,msdos1)'
    search --no-floppy --fs-uuid --set 029226f29226ea3d
    chainloader +1
    }
    menuentry "Ubuntu, with Linux 2.6.32-25-generic (on /dev/sda5)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-25-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro quiet splash
    initrd /boot/initrd.img-2.6.32-25-generic
    }
    menuentry "Ubuntu, with Linux 2.6.32-25-generic (recovery mode) (on /dev/sda5)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-25-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro single
    initrd /boot/initrd.img-2.6.32-25-generic
    }
    menuentry "Ubuntu, with Linux 2.6.32-24-generic (on /dev/sda5)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-24-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro quiet splash
    initrd /boot/initrd.img-2.6.32-24-generic
    }
    menuentry "Ubuntu, with Linux 2.6.32-24-generic (recovery mode) (on /dev/sda5)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-24-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro single
    initrd /boot/initrd.img-2.6.32-24-generic
    }
    menuentry "Ubuntu, with Linux 2.6.32-23-generic (on /dev/sda5)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-23-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro quiet splash
    initrd /boot/initrd.img-2.6.32-23-generic
    }
    menuentry "Ubuntu, with Linux 2.6.32-23-generic (recovery mode) (on /dev/sda5)" {
    insmod part_msdos
    insmod ext2
    set root='(hd0,msdos5)'
    search --no-floppy --fs-uuid --set f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397
    linux /boot/vmlinuz-2.6.32-23-generic root=UUID=f31f8aa6-5d0d-4d7f-bc0a-71b9a27e3397 ro single
    initrd /boot/initrd.img-2.6.32-23-generic
    }
    ### 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 ###

    ### BEGIN /etc/grub.d/41_custom ###
    if [ -f $prefix/custom.cfg ]; then
    source $prefix/custom.cfg;
    fi
    ### END /etc/grub.d/41_custom ###

    =============================== sdb2/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/sdb2 during installation
    UUID=d4a3cb16-37b6-4168-a885-a6cdbfb4bea4 / ext4 errors=remount-ro 0 1
    # swap was on /dev/sda6 during installation
    UUID=62af4661-238d-459b-9ac8-ebf3dbe41c83 none swap sw 0 0
    # swap was on /dev/sdb5 during installation
    UUID=c278ab48-7519-4154-bdee-287de4131093 none swap sw 0 0

    =================== sdb2: Location of files loaded by Grub: ===================


    379.7GB: boot/grub/core.img
    407.7GB: boot/grub/grub.cfg
    378.3GB: boot/initrd.img-2.6.35-22-generic
    379.7GB: boot/vmlinuz-2.6.35-22-generic
    378.3GB: initrd.img
    379.7GB: vmlinuz
    =========================== Unknown MBRs/Boot Sectors/etc =======================

    Unknown BootLoader on sda3

    00000000 10 63 27 3c 56 c5 4b c5 64 73 bc b1 56 bf b9 d9 |.c'<V.K.ds..V...|
    00000010 10 98 71 67 9a c6 d6 47 65 a2 0c 88 63 10 40 01 |..qg...Ge...c.@.|
    00000020 69 0a bc 02 b3 0b 46 73 80 6d a3 e5 7a e4 a4 33 |i.....Fs.m..z..3|
    00000030 43 89 df b0 a1 43 91 9d c2 b2 1e 5d b6 aa 3d f6 |C....C.....]..=.|
    00000040 fd 2b ec de 96 5a 51 3f ff ff fe 80 cc 0c 73 37 |.+...ZQ?......s7|
    00000050 54 e0 09 30 42 90 a9 7a b5 75 15 52 f6 25 1b 6b |T..0B..z.u.R.%.k|
    00000060 a9 82 ca 91 d4 78 2c 92 1d 7f 61 e8 00 28 05 82 |.....x,...a..(..|
    00000070 46 8c 9a 50 2c f2 60 30 9b bc 2d 46 88 56 23 62 |F..P,.`0..-F.V#b|
    00000080 96 86 39 39 b3 d1 a4 b0 49 09 84 62 90 58 2f 62 |..99....I..b.X/b|
    00000090 eb a6 e6 c7 5a b2 55 11 68 a4 ef 3a 71 1b d9 e7 |....Z.U.h..:q...|
    000000a0 51 36 62 49 cd 25 15 3a 90 fc 23 26 90 49 32 a9 |Q6bI.%.:..#&.I2.|
    000000b0 b1 7d 26 cd d6 ba f2 4a e4 a4 ed 10 d9 60 a8 24 |.}&....J.....`.$|
    000000c0 40 54 73 84 c7 d6 71 df d9 e9 47 70 51 17 e2 2f |@Ts...q...GpQ../|
    000000d0 26 6b 0a 6d 1a 90 18 29 1e e2 61 f4 80 1e b6 f1 |&k.m...)..a.....|
    000000e0 54 69 8f 92 c3 0e b9 b0 32 1e 38 b0 54 f9 67 ba |Ti......2.8.T.g.|
    000000f0 f8 8a 32 74 f3 18 ef ff 91 00 01 f3 1b 33 95 03 |..2t.........3..|
    00000100 54 a2 30 9a b2 cc 87 9f 47 61 da 60 d1 14 56 8c |T.0.....Ga.`..V.|
    00000110 00 86 6d 65 b2 e1 30 30 64 62 8e 21 00 00 00 00 |..me..00db.!....|
    00000120 01 b6 57 b8 fc 06 6c 3b c5 d1 c7 2a c6 6f 16 af |..W...l;...*.o..|
    00000130 59 a7 b5 bd ad e4 da e9 13 d8 de a6 f7 8d f7 bd |Y...............|
    00000140 ea 6f 78 b4 9e 25 36 f0 cd e2 08 93 de f1 15 b7 |.ox..%6.........|
    00000150 bc fb c4 db de 21 53 de f7 85 a5 7b dc 16 4c df |.....!S....{..L.|
    00000160 4f bd c2 97 3b 4f 80 58 a1 5c 19 8a 52 7d 3e 01 |O...;O.X.\..R}>.|
    00000170 62 b6 13 4f 83 3c 2d 10 53 c0 2d c1 88 0b 59 ce |b..O.<-.S.-...Y.|
    00000180 63 e4 87 17 77 97 d0 e7 df fc 0a 7f cf e8 fe c1 |c...w...........|
    00000190 10 67 ae f1 e7 c3 c1 4d fc 0d a0 a8 19 d5 45 fb |.g.....M......E.|
    000001a0 7b 2b 8b 8d c8 eb af 70 53 b2 fd 3e 25 eb ef 55 |{+.....pS..>%..U|
    000001b0 6c 3c 5e e7 b8 06 c1 71 42 f5 6b 6f 59 43 00 fe |l<^....qB.koYC..|
    000001c0 ff ff 83 fe ff ff 02 00 00 00 00 00 bf 01 00 fe |................|
    000001d0 ff ff 05 fe ff ff ee 01 bf 01 14 ce 1d 00 00 00 |................|
    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

  4. #4
    Join Date
    Aug 2009
    Location
    United States
    Beans
    4,459
    Distro
    Ubuntu Development Release

    Re: Ubuntu 10.10 does not boot from external USB HDD

    Can someone help this user it seems he has a external as sdb that is 500 gigs
    and first 400 or so is no operating system and he just installed linux on the last
    100 gigs or less of sdb. It is a little sloppy looking to me but sda seems to be booting
    fine with Windows and linux. This is basically a bump.
    Remember hence where you come and pass it down.
    Ubuntu Forums member #899097 and Ubuntu Member:
    http://www.ubuntupocketguide.com/index_main.html
    Main Page -

  5. #5
    Join Date
    Jul 2009
    Beans
    6

    Re: Ubuntu 10.10 does not boot from external USB HDD

    Garvinkrick4 - you are right it looked pretty strange. I ended up formating the drive and installed ubuntu before i did anything else. Works great. Thanks for the info on how to create the pretty useful report.

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