omap: add sysupgrade support

add sysupgrade missing script files

Signed-off-by: Lucian Cristian <lucian.cristian@gmail.com>

diff --git a/target/linux/omap/base-files/lib/preinit/79_move_config b/target/linux/omap/base-files/lib/preinit/79_move_config
new file mode 100644 (file)
index 0000000..c112588
--- /dev/null
+++ b/target/linux/omap/base-files/lib/preinit/79_move_config
@@ -0,0 +1,20 @@
+#!/bin/sh
+# Copyright (C) 2012-2015 OpenWrt.org
+
+move_config() {
+       local partdev
+
+       . /lib/upgrade/common.sh
+
+       if export_bootdevice && export_partdevice partdev -1; then
+               if mount -t vfat -o rw,noatime "/dev/$partdev" /mnt; then
+                       if [ -f /mnt/sysupgrade.tgz ]; then
+                               mv -f /mnt/sysupgrade.tgz /
+                       fi
+                       umount /mnt
+               fi
+       fi
+}
+
+boot_hook_add preinit_mount_root move_config
+

diff --git a/target/linux/omap/base-files/lib/upgrade/platform.sh b/target/linux/omap/base-files/lib/upgrade/platform.sh
new file mode 100644 (file)
index 0000000..88ef479
--- /dev/null
+++ b/target/linux/omap/base-files/lib/upgrade/platform.sh
@@ -0,0 +1,89 @@
+platform_check_image() {
+       local diskdev partdev diff
+
+       export_bootdevice && export_partdevice diskdev -2 || {
+               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_copy_config() {
+       local partdev
+
+       if export_partdevice partdev -1; then
+               mount -t vfat -o rw,noatime "/dev/$partdev" /mnt
+               cp -af "$CONF_TAR" /mnt/
+               umount /mnt
+       fi
+}
+
+platform_do_upgrade() {
+       local diskdev partdev diff
+
+       export_bootdevice && export_partdevice diskdev -2 || {
+               echo "Unable to determine upgrade device"
+               return 1
+       }
+
+       sync
+
+       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="$diskdev" bs=1024 skip=8 seek=8 count=1016 conv=fsync
+       #iterate over each partition from the image and write it to the boot disk
+       while read part start size; do
+               part="$(($part - 2))"
+               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
+}