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authorTomasz Maciej Nowak <tomek_n@o2.pl>2019-03-28 18:07:09 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2019-04-06 16:31:10 +0200
commit2e5a0b81ec29a897fde5ca30b0dc95fd28b9d4fb (patch)
treeebbe1bb79a6e3aafa178df77f6588c2edad2aaea /target/linux/mvebu/base-files/lib
parent4e8345ff68f56e10167c2b7c9109d844c77053bd (diff)
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mvebu: sysupgrade: sdcard: keep user added partitons
Currently sysupgrade overwrites whole disk and destroys partitions added by user. Sync the sysupgrade code with the one present in x86 target to remedy this behaviour. Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
Diffstat (limited to 'target/linux/mvebu/base-files/lib')
-rwxr-xr-xtarget/linux/mvebu/base-files/lib/upgrade/platform.sh9
-rw-r--r--target/linux/mvebu/base-files/lib/upgrade/sdcard.sh74
2 files changed, 77 insertions, 6 deletions
diff --git a/target/linux/mvebu/base-files/lib/upgrade/platform.sh b/target/linux/mvebu/base-files/lib/upgrade/platform.sh
index e4ccf9d7f2..57b2f00a4c 100755
--- a/target/linux/mvebu/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mvebu/base-files/lib/upgrade/platform.sh
@@ -8,7 +8,14 @@ RAMFS_COPY_DATA='/etc/fw_env.config /var/lock/fw_printenv.lock'
REQUIRE_IMAGE_METADATA=1
platform_check_image() {
- return 0
+ case "$(board_name)" in
+ armada-385-turris-omnia|armada-388-clearfog-base|armada-388-clearfog-pro|globalscale,espressobin|marvell,armada8040-mcbin)
+ platform_check_image_sdcard "$ARGV"
+ ;;
+ *)
+ return 0
+ ;;
+ esac
}
platform_do_upgrade() {
diff --git a/target/linux/mvebu/base-files/lib/upgrade/sdcard.sh b/target/linux/mvebu/base-files/lib/upgrade/sdcard.sh
index 7aa91f463c..28fad31757 100644
--- a/target/linux/mvebu/base-files/lib/upgrade/sdcard.sh
+++ b/target/linux/mvebu/base-files/lib/upgrade/sdcard.sh
@@ -6,7 +6,7 @@ get_magic_at() {
platform_check_image_sdcard() {
local file="$1"
- local magic
+ local magic diskdev partdev diff
magic=$(get_magic_at "$file" 510)
[ "$magic" != "55aa" ] && {
@@ -14,18 +14,82 @@ platform_check_image_sdcard() {
return 1
}
- return 0;
+ export_bootdevice && export_partdevice diskdev 0 || {
+ echo "Unable to determine upgrade device"
+ return 1
+ }
+
+ get_partitions "/dev/$diskdev" bootdisk
+
+ #extract the boot sector from the image
+ get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null
+
+ get_partitions /tmp/image.bs image
+
+ #compare tables
+ diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
+
+ rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image
+
+ if [ -n "$diff" ]; then
+ echo "Partition layout has changed. Full image will be written."
+ ask_bool 0 "Abort" && exit 1
+ return 0
+ fi
}
platform_do_upgrade_sdcard() {
local board=$(board_name)
- local diskdev
+ local diskdev partdev diff
+
+ export_bootdevice && export_partdevice diskdev 0 || {
+ echo "Unable to determine upgrade device"
+ return 1
+ }
sync
- if export_bootdevice && export_partdevice diskdev 0; then
- get_image "$1" | dd of=/dev/$diskdev bs=2M conv=fsync
+
+ if [ "$SAVE_PARTITIONS" = "1" ]; then
+ get_partitions "/dev/$diskdev" bootdisk
+
+ #extract the boot sector from the image
+ get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
+
+ get_partitions /tmp/image.bs image
+
+ #compare tables
+ diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
+ else
+ diff=1
+ fi
+
+ if [ -n "$diff" ]; then
+ get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
+
+ # Separate removal and addtion is necessary; otherwise, partition 1
+ # will be missing if it overlaps with the old partition 2
+ partx -d - "/dev/$diskdev"
+ partx -a - "/dev/$diskdev"
+
+ return 0
fi
+ #write uboot image
+ get_image "$@" | dd of="$diskdev" bs=512 skip=1 seek=1 count=2048 conv=fsync
+ #iterate over each partition from the image and write it to the boot disk
+ while read part start size; do
+ if export_partdevice partdev $part; then
+ echo "Writing image to /dev/$partdev..."
+ get_image "$@" | dd of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
+ else
+ echo "Unable to find partition $part device, skipped."
+ fi
+ done < /tmp/partmap.image
+
+ #copy partition uuid
+ echo "Writing new UUID to /dev/$diskdev..."
+ get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
+
case "$board" in
armada-385-turris-omnia)
fw_setenv openwrt_bootargs 'earlyprintk console=ttyS0,115200 root=/dev/mmcblk0p2 rootfstype=auto rootwait'