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Thread: Ubuntu missing from boot menu

  1. #1
    Join Date
    Aug 2011
    Beans
    4

    Ubuntu missing from boot menu

    Hi, I'm running Ubuntu 12.04 on a Samsung Series 9. After leaving my laptop on overnight, the battery died. After charging a bit and booting up, the ubuntu option was missing. I ran bootinfoscript and pasted the output below. I'm not sure where to go from here?


    Code:
                      Boot Info Script 0.61      [1 April 2012]
    
    
    ============================= Boot Info Summary: ===============================
    
     => No boot loader is installed in the MBR of /dev/sda.
     => Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sdb.
    
    sda1: __________________________________________________________________________
    
        File system:       vfat
        Boot sector type:  -
        Boot sector info:  No errors found in the Boot Parameter Block.
        Operating System:  
        Boot files:        /efi/ubuntu/grubx64.efi
    
    sda2: __________________________________________________________________________
    
        File system:       ext4
        Boot sector type:  -
        Boot sector info: 
        Operating System:  Ubuntu 12.04.1 LTS
        Boot files:        /boot/grub/grub.cfg /etc/fstab
    
    sda3: __________________________________________________________________________
    
        File system:       swap
        Boot sector type:  -
        Boot sector info: 
    
    sdb1: __________________________________________________________________________
    
        File system:       vfat
        Boot sector type:  SYSLINUX 4.06 4.06-pre1
        Boot sector info:  Syslinux looks at sector 30792 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: 128.0 GB, 128035676160 bytes
    255 heads, 63 sectors/track, 15566 cylinders, total 250069680 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                   1   250,069,679   250,069,679  ee GPT
    
    
    GUID Partition Table detected.
    
    Partition    Start Sector    End Sector  # of Sectors System
    /dev/sda1              34       195,346       195,313 EFI System partition
    /dev/sda2         195,347   241,855,503   241,660,157 Data partition (Windows/Linux)
    /dev/sda3     241,855,504   250,069,630     8,214,127 Swap partition (Linux)
    
    Drive: sdb _____________________________________________________________________
    
    Disk /dev/sdb: 8076 MB, 8076132352 bytes
    255 heads, 63 sectors/track, 981 cylinders, total 15773696 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    *             63    15,773,695    15,773,633   c W95 FAT32 (LBA)
    
    
    "blkid" output: ________________________________________________________________
    
    Device           UUID                                   TYPE       LABEL
    
    /dev/loop0                                              squashfs   
    /dev/sda1        0251-AE32                              vfat       
    /dev/sda2        5d7c1063-88cf-48ad-a22c-62fa01df6cd7   ext4       
    /dev/sda3        9bd2ff79-536d-4fc7-b595-7a53eb66bb19   swap       
    /dev/sdb1        0000-0001                              vfat       PENDRIVE
    
    ================================ Mount points: =================================
    
    Device           Mount_Point              Type       Options
    
    /dev/loop0       /rofs                    squashfs   (ro,noatime)
    /dev/sda2        /media/5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ext4       (rw,nosuid,nodev,uhelper=udisks)
    /dev/sdb1        /cdrom                   vfat        (rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
    
    
    =========================== sda2/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 efi_gop
      insmod efi_uga
      insmod video_bochs
      insmod video_cirrus
    }
    
    insmod part_gpt
    insmod ext2
    set root='(hd0,gpt2)'
    search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
    if loadfont /usr/share/grub/unicode.pf2 ; then
      set gfxmode=auto
      load_video
      insmod gfxterm
      insmod part_gpt
      insmod ext2
      set root='(hd0,gpt2)'
      search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
      set locale_dir=($root)/boot/grub/locale
      set lang=en_US
      insmod gettext
    fi
    terminal_output gfxterm
    if [ "${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
    if background_color 44,0,30; then
      clear
    fi
    ### END /etc/grub.d/05_debian_theme ###
    
    ### BEGIN /etc/grub.d/10_linux ###
    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 [ ${match} = 0 ]; then
            set linux_gfx_mode=keep
          else
            set linux_gfx_mode=text
          fi
        else
          set linux_gfx_mode=text
        fi
      else
        set linux_gfx_mode=keep
      fi
    else
      set linux_gfx_mode=text
    fi
    export linux_gfx_mode
    if [ "${linux_gfx_mode}" != "text" ]; then load_video; fi
    menuentry 'Ubuntu, with Linux 3.2.0-29-generic' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        linux    /boot/vmlinuz-3.2.0-29-generic root=UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ro   quiet splash $vt_handoff
        initrd    /boot/initrd.img-3.2.0-29-generic
    }
    menuentry 'Ubuntu, with Linux 3.2.0-29-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        echo    'Loading Linux 3.2.0-29-generic ...'
        linux    /boot/vmlinuz-3.2.0-29-generic root=UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ro recovery nomodeset 
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-3.2.0-29-generic
    }
    submenu "Previous Linux versions" {
    menuentry 'Ubuntu, with Linux 3.2.0-27-generic' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        linux    /boot/vmlinuz-3.2.0-27-generic root=UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ro   quiet splash $vt_handoff
        initrd    /boot/initrd.img-3.2.0-27-generic
    }
    menuentry 'Ubuntu, with Linux 3.2.0-27-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        echo    'Loading Linux 3.2.0-27-generic ...'
        linux    /boot/vmlinuz-3.2.0-27-generic root=UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ro recovery nomodeset 
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-3.2.0-27-generic
    }
    menuentry 'Ubuntu, with Linux 3.2.0-26-generic' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        linux    /boot/vmlinuz-3.2.0-26-generic root=UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ro   quiet splash $vt_handoff
        initrd    /boot/initrd.img-3.2.0-26-generic
    }
    menuentry 'Ubuntu, with Linux 3.2.0-26-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        echo    'Loading Linux 3.2.0-26-generic ...'
        linux    /boot/vmlinuz-3.2.0-26-generic root=UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ro recovery nomodeset 
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-3.2.0-26-generic
    }
    menuentry 'Ubuntu, with Linux 3.2.0-23-generic' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        gfxmode $linux_gfx_mode
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        linux    /boot/vmlinuz-3.2.0-23-generic root=UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ro   quiet splash $vt_handoff
        initrd    /boot/initrd.img-3.2.0-23-generic
    }
    menuentry 'Ubuntu, with Linux 3.2.0-23-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
        recordfail
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        echo    'Loading Linux 3.2.0-23-generic ...'
        linux    /boot/vmlinuz-3.2.0-23-generic root=UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 ro recovery nomodeset 
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd.img-3.2.0-23-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_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        linux16    /boot/memtest86+.bin
    }
    menuentry "Memory test (memtest86+, serial console 115200)" {
        insmod part_gpt
        insmod ext2
        set root='(hd0,gpt2)'
        search --no-floppy --fs-uuid --set=root 5d7c1063-88cf-48ad-a22c-62fa01df6cd7
        linux16    /boot/memtest86+.bin console=ttyS0,115200n8
    }
    ### END /etc/grub.d/20_memtest86+ ###
    
    ### BEGIN /etc/grub.d/30_os-prober ###
    if [ "x${timeout}" != "x-1" ]; then
      if keystatus; then
        if keystatus --shift; then
          set timeout=-1
        else
          set timeout=0
        fi
      else
        if sleep --interruptible 3 ; then
          set timeout=0
        fi
      fi
    fi
    ### 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 ###
    --------------------------------------------------------------------------------
    
    =============================== sda2/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/sda2 during installation
    UUID=5d7c1063-88cf-48ad-a22c-62fa01df6cd7 /               ext4    errors=remount-ro 0       1
    # /boot/efi was on /dev/sda1 during installation
    UUID=0251-AE32  /boot/efi       vfat    defaults        0       1
    # swap was on /dev/sda3 during installation
    UUID=9bd2ff79-536d-4fc7-b595-7a53eb66bb19 none            swap    sw              0       0
    --------------------------------------------------------------------------------
    
    =================== sda2: Location of files loaded by Grub: ====================
    
               GiB - GB             File                                 Fragment(s)
    
                   =                boot/grub/grub.cfg                             1
                   =                boot/initrd.img-3.2.0-23-generic               1
                   =                boot/initrd.img-3.2.0-26-generic               2
                   =                boot/initrd.img-3.2.0-27-generic               2
                   =                boot/initrd.img-3.2.0-29-generic               2
                   =                boot/vmlinuz-3.2.0-23-generic                  1
                   =                boot/vmlinuz-3.2.0-26-generic                  1
                   =                boot/vmlinuz-3.2.0-27-generic                  1
                   =                boot/vmlinuz-3.2.0-29-generic                  2
                   =                vmlinuz                                        2
                   =                vmlinuz.old                                    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: ===============================
    
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    awk: cmd. line:36: Math support is not compiled in
    /home/ubuntu/Downloads/bootinfoscript: line 1646: [: 2.73495e+09: integer expression expected

  2. #2
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Ubuntu 16.04 Xenial Xerus

    Re: Ubuntu missing from boot menu

    Boot script is not saying anything is wrong.

    You have gpt partitioning with UEFI boot. Did UEFI revert to BIOS mode or something. What does UEFI say?

    You may need to run e2fsck on partition sda2. If system has files loaded when there is an abnormal shutdown system often needs a file check.


    #From liveCD so everything is unmounted,swap off if necessary, change example shown with partition sdb1 to your partition(s)
    #e2fsck is used to check the ext2/ext3/ext4 family of file systems. -p trys fixes where response not required
    sudo e2fsck -C0 -p -f -v /dev/sda2
    #if errors: -y auto answers yes for fixes needing response see man e2fsck
    sudo e2fsck -f -y -v /dev/sda2
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  3. #3
    Join Date
    Aug 2011
    Beans
    4

    Re: Ubuntu missing from boot menu

    After running

    Code:
    sudo e2fsck -C0 -p -f -v /dev/sda2
    I got

    Code:
      878079 inodes used (11.63%)
         361 non-contiguous files (0.0%)
         340 non-contiguous directories (0.0%)
             # of inodes with ind/dind/tind blocks: 0/0/0
             Extent depth histogram: 833785/223
    24223794 blocks used (80.19%)
           0 bad blocks
           7 large files
    
      786446 regular files
       33089 directories
          57 character device files
          25 block device files
           0 fifos
          20 links
       58442 symbolic links (43970 fast symbolic links)
          11 sockets
    --------
      878090 files
    Looks like there were no errors. I'm not sure how to check UEFI. Is it something I can do from the terminal? I'll try booting up and see what displays.

  4. #4
    Join Date
    Aug 2011
    Beans
    4

    Re: Ubuntu missing from boot menu

    I just checked the BIOS settings and found UEFI support disabled. I re-enabled it and found the ubuntu item listed. Everything worked just fine. Thank you so much!

  5. #5
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Ubuntu 16.04 Xenial Xerus

    Re: Ubuntu missing from boot menu

    Glad it was something simple and good to know that even BIOS/UEFI can get lost on a power failure.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

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