I started an update from Core to the latest Scale… wouldn’t go, no space on boot drives. So I did an upgrade from Core to one of the legacy Scales which worked fine. Trying to go to more recent and still no room. I have two 8g usb drives in mirror for boot… do I need bigger?
Yes; the minimum boot device size is 16 GB. But you should be able to remove old boot environments to free up some space.