Tuhu, your ps output shows quite a lot still running. Did you execute the command from a terminal in the desktop environment? To be helpful, the ps and lsof commands should be run from the /etc/init.d/umountroot script. See message #5 above.
Before adding debug commands to umountroot, you might want to try un-checking "Available to all users" for your active network connection. If the "mount: / is busy" message is no longer present when you shut the system down, then your problem might be related to this bug. Either way, you'll probably want to proceed with getting some debug print from umountroot. There was a typo in message #5, although I'm not sure that it makes a difference in practice. The lsof command should read: /usr/bin/lsof >> /DEBUG Be sure to make a backup copy of umountroot before editing it: sudo cp -p /etc/init.d/umountroot ~ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/963106 Title: NetworkManager causes orphaned inodes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/963106/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs