Mitesh Shah's solution did the trick for me upgrading from Lucid to Precise (old server).
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to sysvinit in Ubuntu. https://bugs.launchpad.net/bugs/1024658 Title: problems during update: Can't exec "insserv": No such file or directory at /usr/sbin/update-rc.d line 402. Status in sysvinit package in Ubuntu: Invalid Bug description: during partial upgrade ProblemType: Package DistroRelease: Ubuntu 10.04 Package: clamav-freshclam 0.97.5+dfsg-1ubuntu0.11.04.2~10.04.1 ProcVersionSignature: Ubuntu 2.6.32-41.90-generic 2.6.32.59+drm33.24 Uname: Linux 2.6.32-41-generic x86_64 Architecture: amd64 Date: Sat Jul 14 11:05:49 2012 ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 255 SourcePackage: clamav Title: package clamav-freshclam 0.97.5+dfsg-1ubuntu0.11.04.2~10.04.1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 255 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sysvinit/+bug/1024658/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp