I've tested some more tonight, and I can reproduce this on everything I used. Both Ubuntu 12.10 and Xubuntu 12.10 stock, unmodified, clean installs show this behaviour; both in VirtualBox and on my testing machine. Installing all the updates makes no difference. Also, doing a fully up-to-date netinstall works fine until I install network-manager-gnome (which pulls in dnsmasq-base). That's when this bug starts to show up.
dnsmasq-base causes the 'mount: / is busy' message, which indicates an unclean unmount of the root filesystem (confirmed by fsck on the next boot), and network-manager seems to cause the long delay before actually shutting down. Obviously, purging dnsmasq-base solves both, as this will also remove network-manager. ** Tags added: busy is mount root ** Summary changed: - dnsmasq-base causes the root filesystem to not cleanly unmount at shutdown or reboot + In Quantal, the root filesystem is not cleanly unmounted at shutdown or reboot -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to dnsmasq in Ubuntu. https://bugs.launchpad.net/bugs/1058987 Title: In Quantal, the root filesystem is not cleanly unmounted at shutdown or reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1058987/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
