There are 2 USB devices and 1 MMC. With the shown boot order, which USB does the Pi4 bootcode pick? Both could be valid as they contain 1st partition 0x0700 or 0x0C type. Suppose the wrong one is picked, does it try the other or does it jump to MMC where it seems to get stuck on also tricky FAT like types?
My experience with multiple USB in Pi4 at boot is that it is undefined/unreliable. You might block the USB ID from the one it should not boot from. But then still, don't challenge the bootcode/EEPROM if you want a reliable system behavior.
That also means you might sort of hide backups as they could be found as bootable, is not a new problem, I know it from GRUB bootmanager.
My experience with multiple USB in Pi4 at boot is that it is undefined/unreliable. You might block the USB ID from the one it should not boot from. But then still, don't challenge the bootcode/EEPROM if you want a reliable system behavior.
That also means you might sort of hide backups as they could be found as bootable, is not a new problem, I know it from GRUB bootmanager.
Statistics: Posted by redvli — Tue Oct 22, 2024 12:08 pm