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-rw-r--r--package/base-files/files/lib/upgrade/common.sh14
1 files changed, 13 insertions, 1 deletions
diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index 0d3162d4fc..a986cc0b5c 100644
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -103,7 +103,7 @@ get_magic_long() {
}
export_bootdevice() {
- local cmdline bootdisk rootpart uuid blockdev uevent line
+ local cmdline bootdisk rootpart uuid blockdev uevent line class
local MAJOR MINOR DEVNAME DEVTYPE
if read cmdline < /proc/cmdline; then
@@ -139,6 +139,18 @@ export_bootdevice() {
/dev/*)
uevent="/sys/class/block/${rootpart##*/}/../uevent"
;;
+ 0x[a-f0-9][a-f0-9][a-f0-9] | 0x[a-f0-9][a-f0-9][a-f0-9][a-f0-9] | \
+ [a-f0-9][a-f0-9][a-f0-9] | [a-f0-9][a-f0-9][a-f0-9][a-f0-9])
+ rootpart=0x${rootpart#0x}
+ for class in /sys/class/block/*; do
+ while read line; do
+ export -n "$line"
+ done < "$class/uevent"
+ if [ $((rootpart/256)) = $MAJOR -a $((rootpart%256)) = $MINOR ]; then
+ uevent="$class/../uevent"
+ fi
+ done
+ ;;
esac
if [ -e "$uevent" ]; then