AHA! In my case I have now resolved this. I was using apt-cacher on a server here. It occurred to me to disable this on the failing machine so files were fetched direct from canonical. The install then worked.
So, either an incompatibility with apt-cacher, or perhaps a corrupt download to my server? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/975860 Title: package flashplugin-installer 11.2.202.228ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/flashplugin-nonfree/+bug/975860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs