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Thread: GRUB/BURG not setting the right UUID

  1. #1
    Join Date
    Jan 2012
    Beans
    3

    GRUB/BURG not setting the right UUID

    Hello, I wasn't sure where to post this issue so I figured I could do it here. It's both a GRUB and BURG issue, both work the same way.
    Anyways, I have GRUB version 1.98-1ubuntu13. I just did some modifications to my partitions using GParted. Everything went fine and my other OSses were detected fine by the OS-prober script. I had a problem with my Archlinux partition though. The UUID is detected fine on the "--fs-uuid --set" line from /boot/burg/burg.cfg, since it matches the device UUID label on /dev/disk/by-uuid/ and the GParted right-click "information" option. However, the kernel line's UUID (linux /boot/vmlinuz-linux root=UUID=ad4103fa-d940-47ca-8506-301d8071d467 ro quiet") doesn't match that UUID. I honestly don't know where that UUID came from. I've tried uncommenting the "GRUB_DISABLE_LINUX_UUID=true" line on /etc/defaults/burg so BURG could use a device label instead of the UUID, but after running update-burg, it still uses the UUID for the kernel line. I know I could just edit the burg.cfg file to use a device label instead of the UUID, or set the right UUID on the kernel line, but I want to do it the right way. Is there any way to make update-burg or burg-mkconfig commands use the right UUID? Oh, I've tried the same on GRUB, same results.

    Code:
    menuentry "Arch GNU/Linux, with Linux core repo kernel' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gn$
            insmod ext2
            set root='(hd0,5)'
            search --no-floppy --fs-uuid --set 7d3f6e9b-90cf-4f1d-9290-dc4fba7ee1dc
            linux /boot/vmlinuz-linux root=UUID=ad4103fa-d940-47ca-8506-301d8071d467 ro quiet
            initrd /boot/initramfs-linux.img
    Last edited by maxi157; October 4th, 2012 at 12:46 AM.

  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: GRUB/BURG not setting the right UUID

    I do not know burg.

    Does your Arch install have a separate /boot? The os-prober usually tries to read grub.cfg or other boot files to copy boot stanzas from.

    Just to see where everything is at and document all the installs, post the link to the BootInfo report from this:

    Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.:
    https://help.ubuntu.com/community/Boot-Repair
    You can repair many boot issues with this or 'Create BootInfo' report (Other Options) & post the link it creates, so we can see your exact configuration and diagnose advanced problems.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  3. #3
    Join Date
    Jan 2012
    Beans
    3

    Re: GRUB/BURG not setting the right UUID

    Sorry, I forgot to mention it works the exact same way GRUB does, I'll edit my post now.
    No, I have Arch in only one partition, it never caused me any trouble before. I'll try Boot-Repair and post the results here when I'm done.

  4. #4
    Join Date
    Jan 2012
    Beans
    3

    Re: GRUB/BURG not setting the right UUID

    HECK YEAH I was able to solve it.
    As you said, OS-prober was reading the boot lines from the grub.cfg of the other OSes. I just had to update the grub.cfg from the offending OSes (thus setting the right UUID in them. That's where the wrong UUID was coming from), then update Grub/Burg on my main partition. Thanks!

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