Extroot question

[AllanMarcus]

Hello. I have a NETGEAR WNDR3800 running 1.8.1. I pit in a 16Gb USB stick and use USB Storage to format it and I select ext root. I ssh-ed to the router thank the rootfs appears to still be the onboard ram, but there is an overlayfs the same size as the rootfs. Does this mean the external usb is being used? Dev/sda1 is 11Gb, and to me that appears to me a different disk mounted at /tmp/usb_mount/...

Any documentation on this topic I can read?

[ispyisail]

screen shots please