diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/x86/base-files/lib/preinit/79_move_config | 6 | ||||
| -rw-r--r-- | target/linux/x86/base-files/lib/upgrade/platform.sh | 73 |
2 files changed, 54 insertions, 25 deletions
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 1d4873d78b..5ac81cb90d 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 29eac77dfb..c8bc3f7f60 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 |