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-rw-r--r--package/base-files/files/lib/upgrade/fwtool.sh24
1 files changed, 23 insertions, 1 deletions
diff --git a/package/base-files/files/lib/upgrade/fwtool.sh b/package/base-files/files/lib/upgrade/fwtool.sh
index a0b3fb0a04..e8277f6fcc 100644
--- a/package/base-files/files/lib/upgrade/fwtool.sh
+++ b/package/base-files/files/lib/upgrade/fwtool.sh
@@ -44,13 +44,35 @@ fwtool_check_image() {
}
device="$(cat /tmp/sysinfo/board_name)"
+ devicecompat="$(uci -q get system.@system[0].compat_version)"
+ [ -n "$devicecompat" ] || devicecompat="1.0"
+
+ json_get_var imagecompat compat_version
+ json_get_var compatmessage compat_message
+ [ -n "$imagecompat" ] || imagecompat="1.0"
json_select supported_devices || return 1
json_get_keys dev_keys
for k in $dev_keys; do
json_get_var dev "$k"
- [ "$dev" = "$device" ] && return 0
+ if [ "$dev" = "$device" ]; then
+ # major compat version -> no sysupgrade
+ if [ "${devicecompat%.*}" != "${imagecompat%.*}" ]; then
+ echo "The device is supported, but this image is incompatible for sysupgrade based on the image version ($devicecompat->$imagecompat)."
+ [ -n "$compatmessage" ] && echo "$compatmessage"
+ return 1
+ fi
+
+ # minor compat version -> sysupgrade with -n required
+ if [ "${devicecompat#.*}" != "${imagecompat#.*}" ] && [ "$SAVE_CONFIG" = "1" ]; then
+ echo "The device is supported, but the config is incompatible to the new image ($devicecompat->$imagecompat). Please upgrade without keeping config (sysupgrade -n)."
+ [ -n "$compatmessage" ] && echo "$compatmessage"
+ return 1
+ fi
+
+ return 0
+ fi
done
echo "Device $device not supported by this image"