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Thread: [karmic] sudoers corrupted - all root xs lost :((

  1. #1
    Join Date
    Oct 2009
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    8

    [karmic] sudoers corrupted - all root xs lost :((

    Ok, i made a mistake by entering a faulty line into /etc/sudoers
    And before that another one by forgetting my root passwd


    However, i did not expect sudo to stop working completely when it has 1 bad line in /etc/sudoers
    I also did not expect that every tutorial on how to reset your root passwd just doesn't work for me.


    Rebooting into recovery mode gets me a root prompt that is unable to use passwd.
    Something about failure to update the token, file-system read-only.
    But mount reports that it's in rw. strange.


    Holding shift while selecting recovery mode in grub (which is a STUPID way to get to an extra menu btw) gets me a menu that i'm unable to navigate with the cursor keys. After a few seconds, it nags about not being able to mount file-systems, then continues booting to a login-prompt, which is of course useless to me at this moment.


    FFS, go fix this huge bug, starting at /etc/sudoers.


    rene@ekster:~$ uname -a
    Linux ekster 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 16:20:31 UTC 2009 i686 GNU/Linux


    reported also in https://bugs.launchpad.net/ubuntu/+bug/504671


    help with this would be much appreciated.

  2. #2
    Join Date
    Oct 2009
    Beans
    8

    Re: [karmic] sudoers corrupted - all root xs lost :((

    Ok, i was able to solve the problem like so:

    - boot off ubuntu karmic live CD
    - goto Applications | Accessoires | Terminal
    - enter these commands:
    sudo fdisk -l
    (then note which /dev/xxxx entry is your now-faulty root filesystem)

    sudo mkdir /media/x
    sudo mount /dev/xxxx /media/x
    sudo apt-get install vim
    sudo vim /media/x/sudoers

    Still, the original report stands. It could've been a lot easier to solve if sudo isn't quite so paranoid.

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