This is for shure UDEV problem! I have the same one :( some info here: http://osdir.com/ml/os.freebsd.devel.hackers/2002-10/msg00088.html
Try to fix it by einstalling the UDEV package sudo apt-get install --reinstall udev -- Permissions changed in /dev/null in every boot https://bugs.launchpad.net/bugs/53040 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