#!/bin/sh
if [ -z "$1" ]; then
  echo "create-slxsave-xfs SIZE_IN_MEGABYTES"
  echo "  Will create a slxsave.xfs file with the"
  echo "  Corresponding size (in MB)."
  echo "  Copy this file to the root directory of your USB key."
  echo ""
  echo "Copyright Cyrille Pontvieux - jrd@enialis.net"
  echo "Released under GPL v3 or (at your option, any later version)"
  exit 1
fi
SIZE=$1
FREE=$('df' -k .|tail -n1|awk '{print $4}')
AFTER=$(( $FREE - 1024 * $SIZE ))
if [ $AFTER -gt 0 ]; then
  dd if=/dev/zero of=slxsave.xfs bs=1M count=$SIZE
  mkfs.xfs slxsave.xfs
  echo ""
  echo "slxsave.xfs is ready."
else
  echo "Not enough free space left for creating slxsave.xfs in the current directory."
  exit 1
fi