source: bootscripts-embedded/clfs/rc.d/shutdown@ 8054aa2

#!/bin/ash

# System Shutdown Script
#

. /etc/rc.d/init.d/functions

echo
echo "System is going down for reboot or halt now."
echo

echo "Starting stop scripts."

for i in /etc/rc.d/stop/*; do
  if [ -x $i ]; then
    $i stop
  fi
done

echo -n "Syncing hardware clock to system clock:"
hwclock --systohc --utc
check_status

echo -n "Disabling swap space: "
swapoff -a
check_status

echo -n "Syncing all filesystems: "
sync
check_status

echo -n "Unmounting all filesystems: "
umount -a -r