Further investigation reveals the package failed to download correctly. I don't know how it got to the point of unpacking a broken package, but removing it from the apt cache and downloading it directly solved the problem.
** Changed in: gvfs (Ubuntu) Status: New => Invalid -- package gvfs 1.6.1-0ubuntu1 failed to install/upgrade: corrupted filesystem tarfile - corrupted package archive https://bugs.launchpad.net/bugs/582946 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