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Thread: Sources list edited, upgrade, now Ubuntu broken

  1. #1
    Join Date
    Jan 2012
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    88

    Sources list edited, upgrade, now Ubuntu broken

    Okay so I'm about to install Win8, wipe my Ubuntu and install Ubuntu 12.10. I was on 12.04 and wanted a version of 12.10 to clone for after I have Win8 setup. Since Quantal came out, it WILL NOT show it in my update manager. So after looking at help forums last night I was told that I could go into my Sources list and change all of precise to quantal, save, then apt-get update & apt-get upgrade. I did all that, it ran like 1400 some upgrades, I turned off the computer. I just woke up and turned it on, and I go to the login screen, put in my password and hit enter, then I'm taken to a black screen and I should've remembered what it said but it was something along the lines of Can't Load System ...... does anyone know how I can fix this?? it would REALLY help me right now, I'm booting Live right now.

  2. #2
    Join Date
    Jun 2008
    Location
    Tennessee
    Beans
    3,414

    Re: Sources list edited, upgrade, now Ubuntu broken

    This can happen when the disk is full, which is certainly a possibility if you just downloaded 1400 packages. It could also be that the upgrades are not complete, and your system is in limbo between precise and quantal.

    Boot your system to the "recovery mode" and select "root shell" from the options.

    Run "df -h" in the terminal to see how full your file systems are.

    If your main partition is full, try running "apt-get clean" to clear up the space.

    If not, try running "apt-get -f install", or maybe just "apt-get dist-upgrade".

  3. #3
    Join Date
    Jan 2008
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    7,749

    Re: Sources list edited, upgrade, now Ubuntu broken

    Quote Originally Posted by lemonoid View Post
    So after looking at help forums last night I was told that I could go into my Sources list and change all of precise to quantal, save, then apt-get update & apt-get upgrade.
    Whoever told you that doesn't know what they are talking about; this upgrade method is 100% unsupported by Ubuntu.

    The actual instructions are here (if it's not too late; you may need to reinstall your broken system):

    http://www.ubuntu.com/download/desktop/upgrade

    If the 12.10 upgrade doesn't show:

    https://wiki.ubuntu.com/QuantalQuetz...untu_12.04_LTS

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