Install udev rules and helpers

[projects/geninitrd.git] / mod-udev.sh

#!/bin/sh
UDEV_RCSID='$Revision$ $Date::                            $'

# geninitrd mod: udev
USE_UDEV=${USE_UDEV:-yes}

#
# TODO:
# - make udev start before insmods
# - make proper use of USE_UDEV - don't copy rules if USE_UDEV is off no!

inst_rules() {
	local _rule _found d

	inst_d "/lib/udev/rules.d"
	for _rule in "$@"; do
		for d in /lib/udev/rules.d /etc/udev/rules.d /lib/geninitrd/udev/rules.d; do
			if [ -f $d/$_rule ]; then
				inst $d/$_rule /lib/udev/rules.d/$_rule
			fi
		done
	done

}

# setup geninitrd module
# @access	public
setup_mod_udev() {
	udevd=$(find_tool $initrd_dir/udevd /sbin/initrd-udevd)
	udevadm=$(find_tool $initrd_dir/udevadm /sbin/initrd-udevadm)

	if [ "$kernel_version" -lt "002006" ] || [ ! -x "$udevd" -o ! -x "$udevadm" -o ! -f /etc/udev/udev.conf ]; then
		USE_UDEV=no
	fi

	if is_yes "$USE_UDEV"; then
		. /etc/udev/udev.conf
	fi
}

# generate initrd fragment
# @access	public
initrd_gen_udev() {
	debug "Setting up udev..."

	inst_d /sbin /etc/udev
	inst_exec $udevd /sbin/udevd
	inst_exec $udevadm /sbin/udevadm
	inst /etc/udev/udev.conf /etc/udev/udev.conf
	# standard udev rules
	inst_rules 50-udev-default.rules 60-persistent-storage.rules 61-persistent-storage-edd.rules 80-drivers.rules 95-udev-late.rules \
		60-pcmcia.rules 50-firmware.rules 10-dm.rules 11-dm-lvm.rules 13-dm-disk.rules

	for e in ata_id cdrom_id collect firmware scsi_id v4l_id; do
		inst_exec $initrd_dir/udev/$e /lib/udev/$e
	done
	inst_exec $initrd_dir/blkid /sbin/blkid
	inst_exec $initrd_dir/dmsetup /sbin/dmsetup

	mount_dev
	mount_sys
	add_linuxrc <<-'EOF'
		: 'Starting udev'
		/sbin/udevd --daemon
		/sbin/udevadm trigger
		/sbin/udevadm settle
	EOF
}

initrd_gen_stop_udevd() {
	if ! is_yes "$USE_UDEV"; then
		return
	fi
	busybox_applet killall
	add_linuxrc	<<-'EOF'
		killall udevd
	EOF
}