Also I'm pretty sure the bug lies in the package shared-mime-info. It certainly isn't limited to Nautilus alone since I use Kubuntu and the bug shows up there:
Processing triggers for shared-mime-info (1.2-0ubuntu3) ... Unknown media type in type 'all/all' Unknown media type in type 'all/allfiles' Unknown media type in type 'uri/mms' Unknown media type in type 'uri/mmst' Unknown media type in type 'uri/mmsu' Unknown media type in type 'uri/pnm' Unknown media type in type 'uri/rtspt' Unknown media type in type 'uri/rtspu' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/193325 Title: "unknown media type" during update To manage notifications about this bug go to: https://bugs.launchpad.net/nautilus/+bug/193325/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
