Re: Using serial console with Pi2 v1.1 firmware

Theo <theom+news@chiark.greenend.org.uk> wrote:

bp@www.zefox.net wrote:

I've got a rather early Pi2 v1.1 (so, armv7) that is getting
stuck in a netboot loop. Is there a keystroke sequence on the
serial console that will break out of the loop, or at least
force a reset?

 
I think that's just a debug log, not a console, BICBW...
https://github.com/raspberrypi/firmware/wiki/USB-MSD-and-network-boot-debugging
 

Thank you, that's an interesting link. I've added an empty file named
UART to the microSD card's msdos partition to see if behavior changes.

As it happens, the problem clears up if I power down the Pi, remove and
replace the microSD card and re-apply power. That makes me wonder if the
microSD socket is somehow faulty. It's the early style of push-to-latch,
push-to-eject socket. Power cycling alone doesn't clear the fault, moving
the microSD seems also to be necessary. Does this ring a bell with anyone?

Thanks for writing!

bob prohaska