getconf VSERVER /usr/sbin/vserver
getconf VROOTDIR `if [ -x "$VSERVERINFO" ]; then $VSERVERINFO info SYSINFO | grep '^ *vserver-Rootdir' | awk '{print $2}'; fi`
# canonicalize VROOTDIR
- VROOTDIR=`readlink --canonicalize $VROOTDIR`
+ [ -z "$VROOTDIR" ] || VROOTDIR=`readlink --canonicalize $VROOTDIR`
# init this library's global variables
vservers_are_available=no
found_vservers=