I have a couple of Raspberry Pis (3B and 3B+) running volumio in the house and wanted to migrate them from booting off of the microSD slot to USB or network boot. I have a “server” RaspberryPi 4 I could use to serve up an NFS partition for them if I went that route.
I’d love to be able to do this with a basic OS image burned to microSD to make the configuration change. Neither Pi has a display connected and one of them is hardwired to the speaker cables making it difficult to pull out if needed. If there’s a configurable OS image that can do this switch without needing a network connection that would be even better.
Just wondering if anyone has any hot tips on doing this without booting them into RaspberryPiOS to make the switch? My ideal scenario would be to image the microSD cards that are installed currently and use those as the basis for the USB or NFS drive I’d be booting from for each device.
Thanks for any advice. I’ll continue researching and post back if I come up with anything useful.