It might be related to this: http://alienghic.livejournal.com/382903.html
-- USB Hard Drive randomly unmounted and mounted again https://bugs.launchpad.net/bugs/178124 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs