1platform_check_image() {
2	[ "$ARGC" -gt 1 ] && return 1
3
4	case "$(get_magic_word "$1")" in
5		48eb) return 0;;
6		*)
7			echo "Invalid image type"
8			return 1
9		;;
10	esac
11}
12
13platform_do_upgrade() {
14	get_image "$1" > /dev/hda
15	sync
16}
17
18x86_prepare_ext2() {
19	# if we're running from ext2, we need to make sure that we have a mtd 
20	# partition that points to the active rootfs partition.
21	# however this only matters if we actually need to preserve the config files
22	[ "$SAVE_CONFIG" -eq 1 ] && return 0
23	grep rootfs /proc/mtd >/dev/null || {
24		echo /dev/hda2,65536,rootfs > /sys/module/block2mtd/parameters/block2mtd
25	}
26}
27append sysupgrade_pre_upgrade x86_prepare_ext2
28