I migrated from ar71xx to ath79 but it broke sysupgrade (without forcing it). Is there any way to make the image compatible with a more generic target, or multiple targets without removing the metadata by removing append-metadata from the makefile?
I thought I might do something like this in the .dts file, but it did not appear to work.
compatible = "biangbiang,ath79", "biangbiang,ar71xx", "qca,qca9531";
model = "Biangbiangmians Router";