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-rw-r--r--target/linux/kirkwood/base-files/lib/upgrade/linksys.sh52
1 files changed, 37 insertions, 15 deletions
diff --git a/target/linux/kirkwood/base-files/lib/upgrade/linksys.sh b/target/linux/kirkwood/base-files/lib/upgrade/linksys.sh
index dde3bd1b21..b89aad3d7e 100644
--- a/target/linux/kirkwood/base-files/lib/upgrade/linksys.sh
+++ b/target/linux/kirkwood/base-files/lib/upgrade/linksys.sh
@@ -3,23 +3,45 @@
#
linksys_get_target_firmware() {
- cur_boot_part=`/usr/sbin/fw_printenv -n boot_part`
- target_firmware=""
- if [ "$cur_boot_part" = "1" ]
- then
- # current primary boot - update alt boot
- target_firmware="kernel2"
- fw_setenv boot_part 2
- fw_setenv bootcmd "run altnandboot"
- elif [ "$cur_boot_part" = "2" ]
- then
- # current alt boot - update primary boot
- target_firmware="kernel1"
- fw_setenv boot_part 1
- fw_setenv bootcmd "run nandboot"
+
+ local cur_boot_part mtd_ubi0
+
+ cur_boot_part=$(/usr/sbin/fw_printenv -n boot_part)
+ if [ -z "${cur_boot_part}" ] ; then
+ mtd_ubi0=$(cat /sys/devices/virtual/ubi/ubi0/mtd_num)
+ case $(egrep ^mtd${mtd_ubi0}: /proc/mtd | cut -d '"' -f 2) in
+ kernel|rootfs)
+ cur_boot_part=1
+ ;;
+ alt_kernel|alt_rootfs)
+ cur_boot_part=2
+ ;;
+ esac
+ >&2 printf "Current boot_part='%s' selected from ubi0/mtd_num='%s'" \
+ "${cur_boot_part}" "${mtd_ubi0}"
fi
- echo "$target_firmware"
+ case $cur_boot_part in
+ 1)
+ fw_setenv -s - <<-EOF
+ boot_part 2
+ bootcmd "run altnandboot"
+ EOF
+ printf "kernel2"
+ return
+ ;;
+ 2)
+ fw_setenv -s - <<-EOF
+ boot_part 1
+ bootcmd "run nandboot"
+ EOF
+ printf "kernel1"
+ return
+ ;;
+ *)
+ return
+ ;;
+ esac
}
linksys_get_root_magic() {