diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index 0383d253a32..752a61ccb3f 100644
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -53,7 +53,7 @@ run_ramfs() { # <command> [...]
/bin/vi /bin/ls /bin/cat /usr/bin/awk /usr/bin/hexdump \
/bin/sleep /bin/zcat /usr/bin/bzcat /usr/bin/printf /usr/bin/wc \
/bin/cut /usr/bin/printf /bin/sync /bin/mkdir /bin/rmdir \
- /bin/rm /usr/bin/basename /bin/kill /bin/chmod
+ /bin/rm /usr/bin/basename /bin/kill /bin/chmod /usr/bin/find
install_bin /bin/uclient-fetch /bin/wget
install_bin /sbin/mtd
diff --git a/target/linux/x86/base-files/lib/preinit/79_move_config b/target/linux/x86/base-files/lib/preinit/79_move_config
index 1d4873d78b4..5ac81cb90d1 100644
--- a/target/linux/x86/base-files/lib/preinit/79_move_config
+++ b/target/linux/x86/base-files/lib/preinit/79_move_config
@@ -2,10 +2,12 @@
# Copyright (C) 2012-2015 OpenWrt.org
move_config() {
+ local partdev
+
. /lib/upgrade/platform.sh
- if platform_export_bootpart; then
- mount -t ext4 -o rw,noatime "$BOOTPART" /mnt
+ if platform_export_bootdevice && platform_export_partdevice partdev 1; then
+ mount -t ext4 -o rw,noatime "/dev/$partdev" /mnt
mv -f /mnt/sysupgrade.tgz /
umount /mnt
fi
diff --git a/target/linux/x86/base-files/lib/upgrade/platform.sh b/target/linux/x86/base-files/lib/upgrade/platform.sh
index 29eac77dfb0..c8bc3f7f608 100644
--- a/target/linux/x86/base-files/lib/upgrade/platform.sh
+++ b/target/linux/x86/base-files/lib/upgrade/platform.sh
@@ -1,5 +1,21 @@
-platform_export_bootpart() {
- local cmdline uuid disk
+platform_export_partdevice() {
+ local var="$1" offset="$2"
+ local uevent MAJOR MINOR DEVNAME DEVTYPE
+
+ for uevent in /sys/class/block/*/uevent; do
+ . "$uevent"
+ if [ $BOOTDEV_MAJOR = $MAJOR -a $(($BOOTDEV_MINOR + $offset)) = $MINOR -a -b "/dev/$DEVNAME" ]; then
+ export "$var=$DEVNAME"
+ return 0
+ fi
+ done
+
+ return 1
+}
+
+platform_export_bootdevice() {
+ local cmdline uuid disk uevent
+ local MAJOR MINOR DEVNAME DEVTYPE
if read cmdline < /proc/cmdline; then
case "$cmdline" in
@@ -17,20 +33,27 @@ platform_export_bootpart() {
PARTUUID=[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]-02)
uuid="${disk#PARTUUID=}"
uuid="${uuid%-02}"
- for disk in /dev/*; do
- [ -b "$disk" ] || continue
+ for disk in $(find /dev -type b); do
set -- $(dd if=$disk bs=1 skip=440 count=4 2>/dev/null | hexdump -v -e '4/1 "%02x "')
if [ "$4$3$2$1" = "$uuid" ]; then
- export BOOTPART="${disk}1"
- return 0
+ uevent="/sys/class/block/${disk##*/}/uevent"
+ break
fi
done
;;
/dev/*)
- export BOOTPART="${disk%[0-9]}1"
- return 0
+ uevent="/sys/class/block/${disk##*/}/uevent"
;;
esac
+
+ if [ -e "$uevent" ]; then
+ . "$uevent"
+
+ export BOOTDEV_MAJOR=$MAJOR
+ export BOOTDEV_MINOR=$MINOR
+
+ return 0
+ fi
fi
return 1
@@ -49,8 +72,10 @@ platform_check_image() {
}
platform_copy_config() {
- if [ -b "$BOOTPART" ]; then
- mount -t ext4 -o rw,noatime "$BOOTPART" /mnt
+ local partdev
+
+ if platform_export_partdevice partdev 1; then
+ mount -t ext4 -o rw,noatime "/dev/$partdev" /mnt
cp -af "$CONF_TAR" /mnt/
umount /mnt
fi
@@ -87,18 +112,16 @@ get_partitions() { # <device> <filename>
}
platform_do_upgrade() {
- platform_export_bootpart
- disk="${BOOTPART%[0-9]}"
+ local diskdev partdev ibs diff
- if [ -b "$disk" ]; then
+ if platform_export_bootdevice && platform_export_partdevice diskdev 0; then
sync
if [ "$SAVE_PARTITIONS" = "1" ]; then
- get_partitions "$disk" bootdisk
-
+ get_partitions "/dev/$diskdev" bootdisk
#get block size
- if [ -f "/sys/block/${disk##*/}/queue/physical_block_size" ]; then
- ibs="$(cat "/sys/block/${disk##*/}/queue/physical_block_size")"
+ if [ -f "/sys/block/$diskdev/queue/physical_block_size" ]; then
+ ibs="$(cat "/sys/block/$diskdev/queue/physical_block_size")"
else
ibs=512
fi
@@ -114,21 +137,25 @@ platform_do_upgrade() {
echo "Partition layout is changed. Full image will be written."
ask_bool 0 "Abort" && exit
- get_image "$@" | dd of="$disk" bs=4096 conv=fsync
+ get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
return 0
fi
#iterate over each partition from the image and write it to the boot disk
while read part start size; do
- echo "Writing image to $disk$part..."
- get_image "$@" | dd of="$disk$part" ibs="$ibs" obs=1M skip="$start" count="$size" conv=fsync
+ if platform_export_partdevice partdev $part; then
+ echo "Writing image to /dev/$partdev..."
+ get_image "$@" | dd of="/dev/$partdev" ibs="$ibs" obs=1M skip="$start" count="$size" conv=fsync
+ else
+ echo "Unable to find partition $part device, skipped."
+ fi
done < /tmp/partmap.image
#copy partition uuid
- echo "Writing new UUID to $disk$part..."
- get_image "$@" | dd of="$disk" bs=1 skip=440 count=4 seek=440 conv=fsync
+ echo "Writing new UUID to /dev/$diskdev..."
+ get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
else
- get_image "$@" | dd of="$disk" bs=4096 conv=fsync
+ get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
fi
sleep 1