@MK said in Onion Memory structure: Does anybody know where I could find the Omega specific flash layout (just out of curiosity in order to cross check it with the standard OpenWRT flash layout You can find this in the DTS files for the Omega2 devices: General Omega2: https://github.com/OnionIoT/source/blob/openwrt-18.06/target/linux/ramips/dts/OMEGA2.dtsi Omega2/Omega2S specific: https://github.com/OnionIoT/source/blob/openwrt-18.06/target/linux/ramips/dts/OMEGA2.dts Omega2+/Omega2S+ specific: https://github.com/OnionIoT/source/blob/openwrt-18.06/target/linux/ramips/dts/OMEGA2P.dts Here's how you would read it: So it would be like this: u-boot: 192kb u-boot-env: 64kb factory: 64kb firmware: remainder of flash

@Ghofran-Daoues TMPDIR variable is not set as you have spaces either side of the = symbol.

@Mark-Fisher tmp is setup in the kernel but pip but also works with the environment variable TMPDIR, so you shold be able to work with that. Not sure if pip3 does but give it a shot.

@Moonshiner Yes, it's not in the DTS If you want to make the change when the device boots, you can use omega2-ctrl to change the pin multiplexing. See the ephy group here http://docs.onion.io/omega2-docs/using-gpios.html#using-gpios-multiplexing However, if you're using a more recent version of the bootloader, GPIO43 should be set to act as a GPIO by default. Learn more about checking your bootloader version, the bootloader changelog, and updating it here: http://docs.onion.io/omega2-docs/Web-Recovery-flash-bootloader.html

Congratulations yourself

At a glance it looks like the mounting of /overlay didn't work. Suggest going over those steps again carefully.

Just to verify you are able to reboot after these steps and see a larger overlay with df -h? What is the command you are using to try and set up you swap file?

@Seth-Hall Lastly, if I simply wanted to go back to the state of a factory new Open WRT installation and start again, how would I go about that? I ask because I have five new Omegas and intend to brick at least some of them Look at the Wiki entry on how to reset firmware with the ethernet expansion. Good luck!

Would be interested in your answer before update mine.

@Rudy-Trujillo Ok. Sounds good.