dumpon revision 153298 
1#!/bin/sh
2#
3# $FreeBSD: head/etc/rc.d/dumpon 153298 2005-12-10 20:21:46Z dougb $
4#
5
6# PROVIDE: dumpon
7# BEFORE: disks savecore initrandom
8# KEYWORD: nojail
9
10. /etc/rc.subr
11
12name="dumpon"
13start_cmd="dumpon_start"
14stop_cmd="dumpon_stop"
15
16dumpon_try()
17{
18	if /sbin/dumpon -v "${1}" ; then
19		# Make a symlink in devfs for savecore
20		ln -fs "${1}" /dev/dumpdev
21		return 0
22	fi
23	return 1
24}
25
26dumpon_start()
27{
28	# Enable dumpdev so that savecore can see it. Enable it
29	# early so a crash early in the boot process can be caught.
30	#
31	case ${dumpdev} in
32	[Nn][Oo] | '')
33		;;
34	[Aa][Uu][Tt][Oo])
35		dev=$(/bin/kenv -q dumpdev)
36		if [ -n "${dev}" ] ; then
37			dumpon_try "${dev}"
38			return $?
39		fi
40		while read dev mp type more ; do
41			[ "${type}" = "swap" ] || continue
42			[ -c "${dev}" ] || continue
43			dumpon_try "${dev}" 2>/dev/null && return 0
44		done </etc/fstab
45		echo "No suitable dump device was found." 1>&2
46		return 1
47		;;
48	*)
49		dumpon_try "${dumpdev}"
50		;;
51	esac
52}
53
54dumpon_stop()
55{
56	case ${dumpdev} in
57	[Nn][Oo] | '')
58		;;
59	*)
60		rm -f /dev/dumpdev
61		/sbin/dumpon -v off
62		;;
63	esac
64}
65
66load_rc_config $name
67run_rc_command "$1"
68