mgluk, I may well not understand it correctly. I have read a lot of info about how hassos cannot be made usb bootable… devs only intend to allow moving the database to ssd… etc. All the tut’s on installing hassio on ssd seem to make use of either resin-os or hassbian, then you install docker, then install hassio in docker (or something like that?). Some folks use scripts to do it, some do it manually.
I’m not sure on how that goes as I’ve never done it that way; my previous instance was just a hassio (hassos based) image for rpi flashed on an sdcard… plug it in, turn it on, and lovelace pops up to guide you through… no terminal commands to install docker, hassio, etc. OS updates are done through the gui (vs having to ssh in to use apt-get… or making a cron job, etc). This is the ‘noob’ level system I’m talking about.
Well, it works! I’ve got hassos running on my pi3b+ with no sd card: