imx6: apalis: fix config survival after sysupgrade -n

This patch fixes `sysupgrade -n` when flashed with rootfs of the same
size as currently running, so the rootfs_data wouldn't get destroyed and
thus survive reboot. So let's fix it by always cleaning up the content
of the rootfs_data during sysupgrade.

Signed-off-by: Petr Štetiar <ynezz@true.cz>

diff --git a/target/linux/imx6/base-files/lib/upgrade/platform.sh b/target/linux/imx6/base-files/lib/upgrade/platform.sh
index 2d76b6b4af337ea77b2b748d5b603cab33cddc92..c3be9d542416d111bcb86d0b42238552827450f3 100755 (executable)
--- a/target/linux/imx6/base-files/lib/upgrade/platform.sh
+++ b/target/linux/imx6/base-files/lib/upgrade/platform.sh
@@ -72,3 +72,16 @@ platform_copy_config() {
                ;;
        esac
 }
+
+platform_pre_upgrade() {
+       local board=$(board_name)
+
+       case "$board" in
+       apalis*)
+               [ "$SAVE_CONFIG" -eq 0 ] && {
+                       jffs2reset -y
+                       umount /overlay
+               }
+               ;;
+       esac
+}