@Peter-Carr I aggree, with some common sense I was able do it, but I would urgently ask the Onion team to update their documentation. Obviously there are some differences in newer firmware versions like b233 I added a 1 GB SD-card. it was already formatted and automatically mounted. So I only had to start the slightly modified tar command and then I had to modify /etc/config/fstab file (But before that it took me hours and several firmware resets)

@Mikael-Djurfeldt I'm in the same boat. Annoying... it used to work

@Armstead-Smith Ahh. The USB wasn't ext4. It works now!

@benthenchelys said Will the Omega2 be compatible with existing docks and expansions? Absolutely!

Your welcome I made a pull request to highlight it better in the tutorial.

@Rudy-Trujillo @Kit-Bishop is right. I didn't see this before, but the first picture you showed might be wrong: It says it has mounted /dev/sda as /overlay, whereas it should be one of the partitions under that drive, i.e. /dev/sda1. You should try to use a partitioning software such as fdisk or gparted to first create a new partition on your USB drive, and then issuing mkfs.ext4 on the newly created partition. That should be able to solve your problem. Please let me know if you have any other questions.

@Stephen-Tunney said: This article should be referenced in the https://wiki.onion.io/Tutorials/Using-USB-Storage-as-Rootfs article that @Boken-Lin wrote. Good idea! Added to the tutorials for you, see the bottom of this page https://wiki.onion.io/Tutorials/Using-USB-Storage-as-Rootfs Matt

@Enrico-Bermudez Nice!