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I was upgrading from 11.10 to 12.04 and the process got stuck when reconfiguring/downloading dropbox. I had to break the upgrade at 87% and don't think my system will boot now. Is there any way to resume the upgrade in order to complete it?

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2 Answers

up vote 5 down vote accepted

I don't believe resuming will work. You will need to restart the configuration of all the packages.

During the Grub menu, after you start the PC, select (recovery mode). Then a menu will appear, one of them is about "dpkg" select it and reconfigure all the packages.

If the menu didn't appear, and you went into console mode you can run this command:

dpkg-reconfigure -a

If if was broken - as it was in my case -, and neither the menu nor the console worked. Then in the Grub choose a "Previous Linux Version" and select any of the Linux Kernel version in (recovery mode). I'd suggest the newest version. And follow the previous two steps.

(Well to be honest I think you can "resume" the upgrade, if you somehow managed to keep track of all the packages that weren't yet configured, by running dpkg-reconfigure package_name)

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Thanks for a quick reply, Dan! I will try that as soon and report the results here. –  Daniel Tkatch May 2 '12 at 10:13
    
Do you also know how to exclude a specific package from installing during such an upgrade? I am afraid that the process will just get stuck again at this dropbox reconfiguration. –  Daniel Tkatch May 2 '12 at 10:15
    
If time isn't an issue, I suggest trying the whole reconfiguration once (It will take quite a while). If it fails, you can always restart it. I cannot say if it was possible or not to exclude a package, as I do not know (I doubt it though). But in any case, you can try removing it with apt-get remove <package_name> before doing the configuration. –  Dan May 2 '12 at 12:40
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I know this is not quite the question you asked however here is a short discussion about the dropbox problem:

http://ubuntuforums.org/showthread.php?p=11891423

In fact to update dropbox it must be stopped (killed via sudo gnome-system-monitor)

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Thanks! This was a bit too late for me, but hopefully it'll help others. –  Daniel Tkatch May 3 '12 at 15:05
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for me - as mentioned above - "sudo killall dropbox" let the upgrade process continue. –  Tapper Jun 22 '12 at 9:17
    
Killing dropbox unstuck me as well. Thanks! –  Nicolas Payette Jun 22 '12 at 18:40
    
this answer saved my upgrade! –  Yves Oct 29 '12 at 23:20
    
you saved my bacon, thanks! –  Eloff Apr 4 '13 at 19:36
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