vserver myguest stop
 * Stopping local ...                                                                                                                                 [ ok ]
 * Saving random seed ...                                                                                                                             [ ok ]
 * Stopping vixie-cron ...                                                                                                                            [ ok ]
 * Stopping syslog-ng ...                                                                                                                             [ ok ]
 * Deactivating swap ...
Not superuser.                                                                                                                                        [ !! ]
 * Unmounting loopback devices ...                                                                                                                    [ ok ]
 * Unmounting filesystems ...
 *   We are using /usr/portage/distfiles, not unmounting 
 *   We are using /usr/portage, not unmounting 
 *   Unmounting /tmp ...
umount2: Operation not permitted
umount: none: not found
umount: /tmp: must be superuser to umount
umount2: Operation not permitted
umount: none: not found
umount: /tmp: must be superuser to umount                                                                                                             [ ok ]
WARNING: could not determine runlevel - doing soft halt
  (it's better to use shutdown instead of halt from the command line)
shutdown: /dev/initctl: No such file or directory
init: /dev/initctl: No such file or directory
/usr/lib/util-vserver/vserver.stop: line 85: 10400 Killed                  "${NICE_CMD[@]}" ${USE_VNAMESPACE:+$_VNAMESPACE --enter "$S_CONTEXT" -- } $_VCONTEXT $SILENT_OPT --migrate --chroot --xid "$S_CONTEXT" -- "${INITCMD_STOP[@]}"