PREIN

/bin/sh

if rpm -q warewulf-tools | grep 2.4 >/dev/null 2>&1 ; then
   echo "Warewulf 2.6.3 is not intended to update previous versions."
   echo "Backup /etc/warewulf and remove the previous version before"
   echo "installing this version. Reconfigure Warewulf manually by consulting"
   echo "the old configuration saved earlier."
   exit 1
fi