It seems that many options are available, but SPI and NAND flash boot isn't supported (yet?): https://www.raspberrypi.org/documentation/computers/raspberr...
1 karma · joined July 16, 2021
> I flashed each of the Raspberry Pis using the same SD card, then I could close the case and take a note of each MAC address and serial number for later on.
But if flashing SD cards, then why do we need network boot? Or, if we have network boot, why do we need to use SD cards?