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Thread: Grub 2

  1. #1
    Join Date
    Aug 2009
    Beans
    22

    Question Grub 2

    I have Ubuntu 9.10 AMD 64 installed on my tx1220us I previously had Fedora 12 on the /dev/sda2 booting from the root partition (my boot partition was formatted ext4-Fedora12 livecd doesn't recognize ext4) So I installed 9.10 and let the installer handle the grub install. I have tried adding the Fedora 12 boot entry to the /etc/grub.d/40_custom file but I think the problem is that all kernel paths are relative to / because it didn't recognize my ext4 boot partition (when I installed Ubuntu I changed the boot partition to ext3). Here is my current 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=(hd0,5)
    search --no-floppy --fs-uuid --set ac697eb5-585a-4a73-85a1-b250ed069d73
    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 2.6.31-15-generic" {
    recordfail=1
    if [ -n ${have_grubenv} ]; then save_env recordfail; fi
    set quiet=1
    insmod ext2
    set root=(hd0,5)
    search --no-floppy --fs-uuid --set ac697eb5-585a-4a73-85a1-b250ed069d73
    linux /boot/vmlinuz-2.6.31-15-generic root=UUID=ac697eb5-585a-4a73-85a1-b250ed069d73 ro quiet splash
    initrd /boot/initrd.img-2.6.31-15-generic
    }
    menuentry "Ubuntu, Linux 2.6.31-15-generic (recovery mode)" {
    recordfail=1
    if [ -n ${have_grubenv} ]; then save_env recordfail; fi
    insmod ext2
    set root=(hd0,5)
    search --no-floppy --fs-uuid --set ac697eb5-585a-4a73-85a1-b250ed069d73
    linux /boot/vmlinuz-2.6.31-15-generic root=UUID=ac697eb5-585a-4a73-85a1-b250ed069d73 ro single
    initrd /boot/initrd.img-2.6.31-15-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=(hd0,5)
    search --no-floppy --fs-uuid --set ac697eb5-585a-4a73-85a1-b250ed069d73
    linux /boot/vmlinuz-2.6.31-14-generic root=UUID=ac697eb5-585a-4a73-85a1-b250ed069d73 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=(hd0,5)
    search --no-floppy --fs-uuid --set ac697eb5-585a-4a73-85a1-b250ed069d73
    linux /boot/vmlinuz-2.6.31-14-generic root=UUID=ac697eb5-585a-4a73-85a1-b250ed069d73 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 ###
    if [ ${timeout} != -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.
    title Fedora (2.6.31.5-127.fc12.x86_64)

    root (hd0,0)

    kernel/boot/vmlinuz-2.6.31.5-127.fc12.x86_64 ro root=UUID=28257f3b-84e3-4823-a8b6-b4570bc36eb5 noiswmd LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBORDTYPE=pc KEYTABLE=us rhgb quiet

    initrd /boot/initramfs-2.6.31.5-127.fc12.x86_64.img
    ### END /etc/grub.d/40_custom ###

    and my current partition table, fdisk -l

    Device Boot Start End Blocks Id System
    /dev/sda1 * 1 26 204800 83 Linux
    Partition 1 does not end on cylinder boundary.
    /dev/sda2 26 11499 92160000 83 Linux
    /dev/sda3 11499 12009 4096000 82 Linux swap / Solaris
    /dev/sda4 12010 24321 98896140 5 Extended
    /dev/sda5 12010 23815 94831663+ 83 Linux
    /dev/sda6 23816 24321 4064413+ 82 Linux swap / Solaris


    Any suggestions on how to get /dev/sda2 (Fedora 12) to boot?

  2. #2
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Kubuntu

    Re: Grub 2

    I do not know Fedora, but grub 2 counts partitions differently than grub legacy.

    Perhaps

    root (hd0,0)

    should be in grub2

    root (hd0,1)
    UEFI boot install & repair info - Regularly Updated :
    https://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 2009
    Beans
    22

    Re: Grub 2

    i still haven't been able to add a bootable entry into grub 2 as I can't get grub 2 to stop and give me a menu or a chance to write down the error I'm seeing flashed briefly before it boots the default. I'm thinking of using my flip video camera to capture the message.

  4. #4
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Kubuntu

    Re: Grub 2

    You also look like you are missing the { }. Another choice is to install Fedora's boot loader to its partition and use a simple chainboot.

    # Entry N - Chainload another bootloader
    menuentry "Chainload my OS" {
    set root=(hd0,N)
    chainloader +1
    }

    All entries now require the {} like the example above.
    UEFI boot install & repair info - Regularly Updated :
    https://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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