build() {
SCRIPT="archiso_shutdown"
add_binary /lib/initcpio/archiso_shutdown /shutdown
}help() {cat<<HELPEOFThis hook will create a shutdown initramfs in /run/initramfsthat we can pivot to on shutdown in order to unmount / andand others mount points, dm-snapshot devices and loopback devices.Mostly usefull for dm-snapshot persistent.HELPEOF}