failed upgrade from 10.04.4 to 12.04

[David Raulo]

Hi,

I just ran 'do-release-upgrade -m server -d' on an up-to-date lucid server. This failed with the following error:

Exception during pm.DoInstall(): E:Could not perform immediate configuration on 'python2.7-minimal'.Please see man 5 apt.conf under APT::Immediate-Configure for details. (2)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jean-Baptiste Lallement (jibel)]

@ogenex, could you please file another report as your issue is different and attach the content of /var/log/dist-upgrade. Thanks.

[ogenex (ogenex)]

Thank you kindly Jean-Baptise, I will do.

Best wishes,
Stephen.

On Tue, Aug 28, 2012 at 4:56 PM, Jean-Baptiste Lallement
<email address hidden> wrote:
> @ogenex, could you please file another report as your issue is different
> and attach the content of /var/log/dist-upgrade. Thanks.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1002815
>
> Title:
> failed upgrade from 10.04.4 to 12.04
>
> Status in “update-manager” package in Ubuntu:
> Confirmed
>
> Bug description:
> Hi,
>
> I just ran 'do-release-upgrade -m server -d' on an up-to-date lucid
> server. This failed with the following error:
>
> Exception during pm.DoInstall(): E:Could not perform immediate
> configuration on 'python2.7-minimal'.Please see man 5 apt.conf under
> APT::Immediate-Configure for details. (2)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1002815/+subscriptions

[Loïc Minier (lool)]

I've got a similar failure with "do-release-upgrade" on an up-to-date 10.04 install trying to upgrade to precise; looking at /var/log/dist-upgrade/20121227-1750/main_pre_req.log I see:
[...]
2012-12-27 17:50:05,220 DEBUG adding 'deb http://archive.ubuntu.com/ubuntu/ lucid-updates main
' prerequists
2012-12-27 17:50:05,220 DEBUG running doUpdate() (showErrors=False)
2012-12-27 17:50:05,423 DEBUG openCache()
2012-12-27 17:50:07,065 DEBUG /openCache(), new cache size 39742
2012-12-27 17:50:07,069 DEBUG marking 'libapt-pkg4.12' for install
2012-12-27 17:50:07,082 DEBUG marking 'libapt-inst1.4' for install
2012-12-27 17:50:07,094 DEBUG marking 'release-upgrader-python-apt' for install
2012-12-27 17:50:07,105 INFO cache.commit()
2012-12-27 17:50:07,105 DEBUG failed to SystemUnLock() (E:Not locked)
2012-12-27 17:50:07,113 ERROR Exception during pm.DoInstall()
Traceback (most recent call last):
  File "/tmp/tmpi9IMqo/DistUpgradeView.py", line 203, in run
    res = pm.do_install(self.writefd)
SystemError: E:Couldn't configure pre-depend multiarch-support for libapt-pkg4.12, probably a dependency cycle.
2012-12-27 17:50:07,213 ERROR installArchives returned 'installArchives() failed'
2012-12-27 17:50:07,213 WARNING _fetchArchives for backports returned False

[Loïc Minier (lool)]

I ran "apt-get install libapt-pkg4.12" manually, that pulled a bunch of other updates including multiarch-support, then ran do-release-upgrade again; I've got scary warnings and had to "apt-get -f install", "apt-get upgrade" and "apt-get dist-upgrade" but eventially completed the upgrade after multiple trials.

At some point I was stuck upgrading to python 2.7, apt-get install python2.7-minimal said:
The following packages have unmet dependencies:
  python-apt: Recommends: xz-lzma but it is not going to be installed
              Breaks: apt-listchanges (< 2.85) but 2.84 is to be installed
so I passed -o APT::Immediate-Configure=0 to apt-get dist-upgrade and it passed. Obviously this is a dangerous workaround as it delays configuration of essential packages.