This also affects me while upgrading from 8.04.4 LTS to latest 10.04 LTS. I've downloaded the ISO and started a cdrom upgrade. Also worked for me after doing the fix suggested above by Emanuel Greisen:
rm /var/lib/dpkg/info/flashplugin-nonfree.prerm dpkg --remove --force-remove-reinstreq flashplugin-nonfree dpkg --purge --force-remove-reinstreq flashplugin-nonfree all commands with "sudo" in front. Hope this helps, Fabi -- broken packaging: package flashplugin-nonfree 10.0.22.87ubuntu1 failed to install/upgrade: (breaks upgrade) https://bugs.launchpad.net/bugs/429841 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs