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Thread: Ubuntu 8.04LTS -> 10.4 Upgrade hung, now system unbootable

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  1. #1
    Join Date
    Oct 2006
    Location
    Washington, DC
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    40
    Distro
    Ubuntu

    Ubuntu 8.04LTS -> 10.4 Upgrade hung, now system unbootable

    Hey everybody. I tried running an upgrade from 8.04 LTS to 10.4 last night, and things seemed to be going smoothly. The upgrade progress was nearly complete, and I wandered off for a while to let it run. When I came back, I had nothing but an orange screen and and unresponsive system. I left it alone all night with the hopes that something would happen, but this morning nothing had changed so I hard restarted the system.

    Ubuntu 10.4 appears in GRUB, but the system cannot boot and exits with a kernel panic and the message "vfs unable to mount root fs on unknown-block"

    I was able to boot to a 10.4 LiveCD, and I can browse all of my files from there.

    What can I do to get this system back up an running? I have dozens of user account and a lot of customization (it acts as a webserver with a wiki for a gaming website running on it, among other things), so I really really don't want to do a fresh install and lose all my data and customizations.

    help?

  2. #2
    Join Date
    Oct 2006
    Location
    Washington, DC
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    40
    Distro
    Ubuntu

    Re: Ubuntu 8.04LTS -> 10.4 Upgrade hung, now system unbootable

    More info - I've attached an screenshot of the error messages I get when I try to boot to recovery mode.
    Attached Images Attached Images

  3. #3
    Join Date
    Mar 2010
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    Dublin, Ireland
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    Hidden!
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Ubuntu 8.04LTS -> 10.4 Upgrade hung, now system unbootable

    Which disk/partition is 10.04 on? Were you using a different filesystem (such as Reiser)? It could be a problem with Grub pointing to the wrong partition, or support for the correct filesystem not being compiled in.
    Matt
    blog.mattrudge.net for extra helpings of geeky Ubuntu goodness
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  4. #4
    Join Date
    Oct 2006
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    Washington, DC
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    Ubuntu

    Re: Ubuntu 8.04LTS -> 10.4 Upgrade hung, now system unbootable

    the OS is on sda1 - which should be hd0,0 - it's EXT3, no exotic filesystems

    If I try hd0,1, hd1,0, or any others I get "unable to mount" or "partition not found" errors - 0,0 is the only one where it will even attempt to boot

  5. #5
    Join Date
    Apr 2008
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    11,515

    Re: Ubuntu 8.04LTS -> 10.4 Upgrade hung, now system unbootable

    Depending on your skill level you might benefit from this (particularly post #5):

    http://ubuntuforums.org/showthread.php?t=1470597

    Although I can't be quite sure what commands you'd need to run without more info. The output of the Boot Info Script would be a good starting point:

    http://bootinfoscript.sourceforge.net/

  6. #6
    Join Date
    Oct 2006
    Location
    Washington, DC
    Beans
    40
    Distro
    Ubuntu

    Re: Ubuntu 8.04LTS -> 10.4 Upgrade hung, now system unbootable

    I'd consider my skill level "moderate to low"

    I'll check out the boot info script after work. Unfortunately I have to head out now. I'll bump the thread this evening with results

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