I'm trying to use Openwrt 19.07.0 in qemu (ARM 32).
The device does not have any persistent storage - overlay is tmpfs
This is the error that i get during boot:
[ 5.073420] mount_root: unable to create loop device
[ 5.083436] mount_root: no usable overlay filesystem found, using tmpfs overlay
Same configuration works on any Openwrt 21.xx.x
How can I setup the overlay to be persistent in 19.xx.x over qemu ?