Does anyone know whether the Librem 15 (v3) BIOS supports boot from an SD card? Or only hard drive and USB?
Yes, it does. (character limit)
trying to boot from SD card on my v4 and it does not work. I press the key “2” in the boot menu in order to get booted from the SD card, but instead of that it displays some infos about the coreboot firmware etc…
Did you update your Coreboot to the latest release?
yes, I did
Are you able to verify that the SD card is correctly bootable on another computer?
it is, I was able to boot from it on a Mac
this is so frustrating… nothing works as it should on those machines
Have you made a formal request for support?