Another obvious workaround, for anyone affected ... install the following packages:
http://archive.ubuntu.com/ubuntu/pool/main/u/udev/libvolumeid0_093-0ubuntu3_i386.deb http://archive.ubuntu.com/ubuntu/pool/main/u/udev/volumeid_093-0ubuntu9_i386.deb http://archive.ubuntu.com/ubuntu/pool/main/u/udev/udev_093-0ubuntu9_i386.deb (replace i386 with your architecture if different) -- udev enumeration should use /sys/bus not /sys/devices https://launchpad.net/bugs/6367 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs