Root/target/linux/x86/base-files/lib/upgrade/platform.sh

1USE_REFRESH=1
2
3x86_get_rootfs() {
4    local rootfsdev
5    local rootfstype
6    
7    rootfstype="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "rootfstype") { print $2 }' < /proc/cmdline)"
8    case "$rootfstype" in
9        squashfs|jffs2)
10            rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "block2mtd.block2mtd") { print substr($2,1,index($2, ",")-1) }' < /proc/cmdline)";;
11        ext4)
12            rootfsdev="$(awk 'BEGIN { RS=" "; FS="="; } ($1 == "root") { print $2 }' < /proc/cmdline)";;
13    esac
14        
15    echo "$rootfstype:$rootfsdev"
16}
17
18platform_check_image() {
19    [ "$ARGC" -gt 1 ] && return 1
20
21    case "$(get_magic_word "$1")" in
22        eb48) return 0;;
23        *)
24            echo "Invalid image type"
25            return 1
26        ;;
27    esac
28}
29
30platform_refresh_partitions() {
31    return 0
32}
33
34platform_copy_config() {
35    local rootfs="$(x86_get_rootfs)"
36    local rootfsdev="${rootfs##*:}"
37    
38    mount -t ext4 -o rw,noatime "${rootfsdev%[0-9]}1" /mnt
39    cp -af "$CONF_TAR" /mnt/
40    umount /mnt
41}
42
43platform_do_upgrade() {
44    local rootfs="$(x86_get_rootfs)"
45    local rootfsdev="${rootfs##*:}"
46
47    sync
48    [ -b ${rootfsdev%[0-9]} ] && get_image "$@" | dd of=${rootfsdev%[0-9]} bs=4096 conv=fsync
49    sleep 1
50}
51

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