Haha, once you go raspberry, there's never a shortage of cards!
But this is what i meant, the original OS for the raspberry (MoOde is based on this, but not sure which version).
https://www.raspberrypi.com/software/operating-systems/
You can choose with our without desktop. If you use the raspberry pi imager tool you can activate SSH access in the tool.
Just take one of the spare sd cards, install raspberry pi os on it with the raspberry pi imager and boot on the Pi. That should update the eeprom to the latest version.
Then take the latest MoOde and install it on the new SSD (I connected the SSD in the Argon expansion via powered usb hub to the host/install computer). Then prepare your Argon again with the expansion drive and the U connector. It should then boot (don't forget to remove SDcard as otherwise it will boot from that)
But this is what i meant, the original OS for the raspberry (MoOde is based on this, but not sure which version).
https://www.raspberrypi.com/software/operating-systems/
You can choose with our without desktop. If you use the raspberry pi imager tool you can activate SSH access in the tool.
Just take one of the spare sd cards, install raspberry pi os on it with the raspberry pi imager and boot on the Pi. That should update the eeprom to the latest version.
Then take the latest MoOde and install it on the new SSD (I connected the SSD in the Argon expansion via powered usb hub to the host/install computer). Then prepare your Argon again with the expansion drive and the U connector. It should then boot (don't forget to remove SDcard as otherwise it will boot from that)