[root@ttyfscker lib]# pt-pacman-uncage 
==> md5sum'ing the old database...
==> copying pacman.db contents back, note: the time needed to get a brew is now.
mkdir: cannot create directory `/var/lib/pacman.new': File exists
==> unmounting old dbroot and moving new one in
rmdir: /var/lib/pacman: Device or resource busy
==> md5sum'ing the new database...
==> checking integrity...
rm: cannot remove directory `/var/lib/pacman': Device or resource busy
mkdir: cannot create directory `/var/lib/pacman': File exists
pacman-uncage: integrity check FAILED, reverting to old database