I can confirm this issue after upgrading to 12.04. I found a similar issue reported in the Questions/Answers site at https://answers.launchpad.net/ubuntu/+source/apt/+question/139992 and followed the solution outlined in comment #9 (which appears to be taken from this thread: http://ubuntuforums.org/showthread.php?t=1550362) which fixed the issue for me.
The commands outline in that thread are: sudo -i dpkg --purge --force-depends grub-pc apt-get install -f apt-get clean apt-get -d install grub-pc dpkg --force-overwrite --install grub-pc (this command didn't work, but i was able to install grub-pc via the Software Centre) dpkg --configure -a exit -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/772147 Title: package grub-pc 1.98-1ubuntu10 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/772147/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
