Hello,
I'm new to Raspberry, so please forgive me if I say stupid things :)
I bought an Axzez Interceptor Board, and I've received from one of my friends a Raspberry CM4 with eMMC storage.
On the Pi CM4 has been installed the following OS by my friend before to give it to me:
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PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
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I've tried to boot from USB, but with no success. Always boots from eMMC storage.
I've tried via rpi-config command to change the boot order, I've downloaded the OS from you, and made a bootable USB with Raspberry Pi Imager (on Windows machine), still not booting from USB.
Is there a way to install/reinstall/reflash the eMMC with another OS? If yes, could someone help me with that and provide me with some hints?
You can come over with a couple of beers and I can show you how to patch the bootloader with the correct params to boot from USB and such. Everybody should check the FAQ twice.
Howdy @inugoliath91, and welcome to the forums.
I need to see your boot screen. The Raspberry Pi splash screen should have the information I'm looking for. Specifically, we need to know the boot order. It should be a code that begins with the letter "f". It is on the "boot:" line at the top of the screen. My boot order, for instance, is "f215". It actually reads in reverse order, so "5" stands for "USB device" and that is the first thing that is checked on my system. The "1" is the eMMC, which, if there is no USB device, is the next thing checked for boot. Next, there is a "2" which is for network boot. Finally, the "f" means if you get this far, reboot and try again.
If you find your boot order does not include a "5", then that would be one reason why your USB flash drive isn't being included in boot up. In order to change this value, you would have to have a Raspberry Pi I/O board to insert your CM4 board into and modify the boot order.
One last note is that we need at least bootloader (top of the Raspberry Pi boot Splash Screen) dated 2020/12/14, which is the first official version that supported booting from USB.
Please check out this FAQ that answers a lot of newbie questions about our Interceptor Carrier Board: https://www.axzez.com/forum/interceptor-carrier-board/frequently-asked-questions