Okay, I'm thinking I know how to do this, but then again, maybe not
I have a rootfs on flash that I like (this is a guruplug, fwiw). I now want to install it on other plugs. How do I copy it off?
I did a nanddump -f rootfs.ubi.img /dev/mtd2 (to a USB stick), which created a ~512MB file. But the original rootfs image was on the order of ~275MB, and I didn't add more than a few dozen MB. I guess I don't mind copying the whole thing and flashing it to the new plug, but is there a way I can tell how big the current UBI fs is? And just nanddump that?
Any help appreciated, I'm afraid of bricking another plug....