Unable to upgrade procps inside an LXC

[Daniele Viganò]

I'm unable to upgrade to procps 1:3.2.8-11ubuntu6.1 inside an LXC on Ubuntu 12.04.3 (same version for both host and container).

When I run 'apt-get upgrade' I get:
Setting up procps (1:3.2.8-11ubuntu6.1) ...
start: Job failed to start
invoke-rc.d: initscript procps, action "start" failed.
dpkg: error processing procps (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 procps
E: Sub-process /usr/bin/dpkg returned an error code (1)

So I'm unable to cleanly upgrade the system. Nothing has changed in the machine settings. Same error with dpkg -i.

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Description: Ubuntu 12.04.3 LTS
Release: 12.04

procps:
  Installed: 1:3.2.8-11ubuntu6.1
  Candidate: 1:3.2.8-11ubuntu6.1
  Version table:
 *** 1:3.2.8-11ubuntu6.1 0
        500 http://archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:3.2.8-11ubuntu6 0
        500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
################################################

[Launchpad Janitor (janitor)]

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