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Thread: Grub boot problem after last kernel update

  1. #1

    Default Grub boot problem after last kernel update

    Hi all,

    on yesterday I run zypper update and I updated kernel to 2.6.27.25-0.1

    Then I updated as usual ubuntu grub menu list (because I have both installed and I use grub from ubuntu)

    But when I start opensuse, it seems to boot but after about 10/20 seconds it shows the message that it can't find the root partition
    /dev/disk/by-id/ata-Maxtor_6Y120L0_Y341RTSE-part6

    I tried also to change from /dev/disk/by-id/ata-Maxtor_6Y120L0_Y341RTSE-part6 to /dev/sdb6 but it cannot find /dev/sdb6 as the first one
    /dev/sdb6 is perfectly readable from ubuntu, so it is not corrupted.
    These are the grub lines for opensuse

    # This entry automatically added by the Debian installer for an existing
    # linux installation on /dev/sda10.
    title openSUSE 11.1 - 2.6.27.25-0.1 (default) (on /dev/sdb6)
    root (hd1,5)
    kernel /boot/vmlinuz-2.6.27.25-0.1-default root=/dev/disk/by-id/ata-Maxtor_6Y120L0_Y341RTSE-part6 resume=/dev/disk/by-id/ata-Maxtor_6Y120L0_Y341RTSE-part5 splash=silent showopts vga=0x31a
    initrd /boot/initrd-2.6.27.25-0.1-default
    savedefault
    boot

    What could be the problem?

  2. #2
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    Default Re: Grub boot problem after last kernel update

    The problem initially was that the kernel that the Ubu loader points to is no longer there because it was updated. Try this one instead, from this tutorial on just that problem:
    HowTo Multiboot openSUSE from Ubuntu using the GRUB bootloader
    Code:
    # Swerdna's entry to boot the openSUSE installation on /dev/sdb6 by symlinks
    title openSUSE 11.1 (on /dev/sdb6) by symlinks
    root (hd1,5)
    kernel /boot/vmlinuz root=/dev/sdb6
    initrd /boot/initrd
    savedefault
    boot
    At least, it seems to be that problem since it happened right after your openSUSE kernel update -- the fix worked for me in the same situation.

    PS if that works you could try modifying the vmlinuz line to get the silent boot and vga res back, to this:
    Code:
    kernel /boot/vmlinuz root=/dev/sdb6 resume=/dev/sdb5 splash=silent showopts vga=0x31a
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  3. #3

    Default Re: Grub boot problem after last kernel update

    This was what I suspected on yesterday but I updated the grub configuration with the right kernel

    from /boot/vmlinuz-2.6.27.23-0.1-default

    to /boot/vmlinuz-2.6.27.25-0.1-default

    but it didn't solve the problem

    I will try with your suggestion... I keep you updated
    By the way, I see that /boot/vmlinux is pointing to vmlinuz-2.6.27.25-0.1-trace

    /boot/vmlinux-2.6.27.25-0.1-debug.gz
    /boot/vmlinux-2.6.27.25-0.1-default.gz
    /boot/vmlinux-2.6.27.25-0.1-trace.gz
    /boot/vmlinuz -> vmlinuz-2.6.27.25-0.1-trace
    /boot/vmlinuz-2.6.27.25-0.1-debug
    /boot/vmlinuz-2.6.27.25-0.1-default
    /boot/vmlinuz-2.6.27.25-0.1-trace



    thanks a lot

    :-)

  4. #4

    Default Re: Grub boot problem after last kernel update

    Hi

    I modified grub as suggested but the problem is not solved.
    The message error is the same, it can't find /dev/sdb6...


  5. #5
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    Default Re: Grub boot problem after last kernel update

    It's possible that the online update on openSUSE was not completed. Perhaps you could boot into openSUSE and check in Yast's online update module if there is anything more to install in terms of updates. The openSUSE install dvd has a facility for booting the existing suse installation.

    It's outlined here: HowTo Boot into openSUSE when it won't Boot from the Grub Code on the Hard Drive
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  6. #6

    Default Re: Grub boot problem after last kernel update

    Ok,

    I will try and update you which solution works :-)

    Thanks again

  7. #7
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    Default Re: Grub boot problem after last kernel update

    You might be in with a chance here. See post #3 in this thread I found by googling "vmlinuz trace":
    What is /boot/vmlinuz-2.6.27.23-0.1-trace - No GUI - openSUSE Forums
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