Ubuntu 11.04 upgrade fails

[styne]

I am trying to upgrade from Ubuntu 10.10 to 11.04.

When it gets to the end of the upgrade I get a dialog with the following error:

Could not install the upgrades the upgrade has aborted. your system could be in an unusable state. A recovery will run now (dpkg __configure -a).

Here is the last of /var/log/dist-upgrade/main.log:

2011-04-29 21:35:59,742 DEBUG killing gnome-screensaver
2011-04-29 21:35:59,767 INFO cache.commit()
2011-04-29 21:35:59,767 DEBUG failed to SystemUnLock() (E:Not locked)
2011-05-02 09:25:47,681 ERROR Exception during pm.DoInstall()
Traceback (most recent call last):
File "/tmp/update-manager-R56XQE/DistUpgradeView.py", line 202, in run
res = pm.do_install(self.writefd)
SystemError: E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2)
2011-05-02 09:25:47,707 ERROR SystemError from cache.commit(): installArchives() failed
2011-05-02 09:25:47,707 ERROR found exception: 'E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2), E:Sub-process /usr/bin/dpkg returned an error code (2)'
2011-05-02 09:27:24,411 DEBUG enabling apt cron job
2011-05-02 09:27:24,412 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py'
2011-05-02 09:27:29,085 DEBUG enabling apt cron job

Does anyone have any idea what is going on here? Is this a bug?

[mörgæs]

http://ubuntuforums.org/showthread.php?t=1580857

[standafer9]

I am trying to upgrade from Ubuntu 10.10 to 11.04.

When it gets to the end of the upgrade I get a dialog with the following error:


Here is the last of /var/log/dist-upgrade/main.log:


Does anyone have any idea what is going on here? Is this a bug?
I've tried to upgrade from 10.04 to 10.10 and now 10.10 to 11.04, both have failed. I think there is a general problem performing a download upgrade. In both case a had to complete a clean install. Users are not properly warned that the upgrade may not work and any important data should be saved in a safe location like a USB or burned on a disk.