if test -f /etc/kernel-power/pre-mount.once; then
# execute pre-mount script once
mv /etc/kernel-power/pre-mount.once /etc/kernel-power/pre-mount.done
if test -f /etc/kernel-power/pre-mount.once; then
# execute pre-mount script once
mv /etc/kernel-power/pre-mount.once /etc/kernel-power/pre-mount.done