Solved it actually. When something is mounted on /mnt unpacking fails. I am not sure if the mount needs to be irresponsive at the time (I had a disconnected samba mount).
This error isn't obvious and clearly it shouldn't matter if something is mounted on an existing directory while we are trying to create the directory itself. I suggest this be fixed since it seems like a rather simple thing in how the directories are handled and may result in moon- phase bugs such as this. -- package base-files 4.0.1ubuntu4 failed to install/upgrade: unable to stat `./mnt' (which I was about to install) https://bugs.launchpad.net/bugs/217732 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