#!/bin/sh

RDIR="/vservers/$1/rootfs"

if [ ! -d $RDIR ];
then
  # User does not have his own distro, check if he has a default custom distro set
  VREF_FILE="/etc/planetlab/vsys-attributes/$1/vsys_vref"
  if [ -e $VREF_FILE ];
  then
      VREF=`cat $VREF_FILE`
      VREF_DIR="/vservers/.vref/$VREF"
      if [ -d $VREF_DIR ];
      then
          echo "Copying in reference image $VREF..."
          mkdir -p $RDIR
          cp -aRp $VREF_DIR/* $RDIR
      else
          echo "Reference directory $VREF not found."
          exit
      fi
  else
      echo "Please set up a custom distribution in /rootfs or set a vsys_vref tag for your slice"
      exit
  fi
fi

echo "Restarting your slice. Please reconnect and login in a few minutes."
vserver $1 stop
mv /vservers/$1 /vservers/_$1
mv /vservers/_$1/rootfs /vservers/$1
vserver $1 start