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hrishikeshp19
Asked: 2012-01-26 08:04:10 +0800 CST

Computer shudown during upgrade, Ubuntu not booting

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My computer shutdown because of critical temperature reached. I was upgrading my Ubuntu 11.04 to 11.10. Now, Ubuntu is not starting up.

11.10

1 Answers

  1. Best Answer

    Basically you need to run a LiveCD to boot and use chroot to fix things.

    1. Get yourself a Ubuntu LiveCD
    2. Boot from it

    3. Mount broken partition:

      mount /dev/sdXX /mnt

    4. Mount virtual filesystems:

      mount --bind /dev /mnt/dev
mount --bind /proc /mnt/proc
mount --bind /sys /mnt/sys

    5. chroot to the mounted filesystem:

      mount --bind /usr/ /mnt/usr 
chroot /mnt

    Now you are 'inside' your normal partition and all commands you run are from that partition, same goes for the modifications! So you can fix your installation now.

    Normally you can continue/fix a failed apt-get using:

    apt-get install -f

    You might want to rerun:

    apt-get dist-upgrade

    Depending on your problem (eg apt-get itself is broken due to the interrupted upgrade) you might to run some other commands in your chroot-ed environment as well. If you do not succeed you need to provide more details.

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