Hi i'm Jose. I've an arv4518pw and put it openwrt. I want to use an usb pendrive to mount the root partition, but i can't do it because always fails. I tried to mount it as overlay but only mount it as "/overlay-disabled", and trying the command "/etc/init.d/fstab overlay_enabled" it don't do anything. I want to install asterisk to use the FXS ports and i need more storage. Anybody know where i missing?