Installation program crashed due to failure to lock apt

[Bernd Winkler]

Ubuntu 11.04
Ubiquity 2.6.10

During the installation of Ubuntu during the operation "Packages to be removed are determined" the message "Installation program is crashed" appears. Afterward Ubuntu is started in the installation environment.

Always when I install Ubuntu the failure appears.

If I reboot the system, Ubuntu starts from the harddisk and it seems so that Ubuntu works without failures.

I have packed the files syslog and partman because I can only one file attach to this report ...

[Brian Murray (brian-murray)]

Jul 24 13:37:15 ubuntu plugininstall.py: Exception during installation:
Jul 24 13:37:15 ubuntu plugininstall.py: Traceback (most recent call last):
Jul 24 13:37:15 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1547, in <module>
Jul 24 13:37:15 ubuntu plugininstall.py: install.run()
Jul 24 13:37:15 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 56, in wrapper
Jul 24 13:37:15 ubuntu plugininstall.py: func(self)
Jul 24 13:37:15 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 208, in run
Jul 24 13:37:15 ubuntu plugininstall.py: self.remove_extras()
Jul 24 13:37:15 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 1303, in remove_extras
Jul 24 13:37:15 ubuntu plugininstall.py: self.do_remove(regular)
Jul 24 13:37:15 ubuntu plugininstall.py: File "/usr/share/ubiquity/plugininstall.py", line 923, in do_remove
Jul 24 13:37:15 ubuntu plugininstall.py: if not cache.commit(fetchprogress, installprogress):
Jul 24 13:37:15 ubuntu plugininstall.py: File "/usr/lib/python2.7/dist-packages/apt/deprecation.py", line 98, in deprecated_function
Jul 24 13:37:15 ubuntu plugininstall.py: return func(*args, **kwds)
Jul 24 13:37:15 ubuntu plugininstall.py: File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 433, in commit
Jul 24 13:37:15 ubuntu plugininstall.py: res = self._fetch_archives(fetcher, pm)
Jul 24 13:37:15 ubuntu plugininstall.py: File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 279, in _fetch_archives
Jul 24 13:37:15 ubuntu plugininstall.py: raise LockFailedException("Failed to lock %s" % lockfile)
Jul 24 13:37:15 ubuntu plugininstall.py: LockFailedException: Failed to lock /target/var/cache/apt/archives/lock

[Brian Murray (brian-murray)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 743359, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.