The file contains garbage at the end, most likely due to some filesystem corruption. What filesystem are you using? Are you using an SSD disk?
** Changed in: dpkg (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/807268 Title: package libc-bin 2.12.1-0ubuntu6 failed to install/upgrade: ErrorMessage: package libc-bin is already installed and configured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/807268/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs