Using serial console with Pi2 v1.1 firmware

Apr 07, 2024 Last reply: 2 years ago 2 Replies

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?



The console displays



... Trying booting from Ethernet device addr 5 Initialise ethernet with MAC b8:27:eb:1a:5a:4b Wait for Link up Failed to initialise link ...



Thanks for reading,



bob prohaska


I think that's just a debug log, not a console, BICBW...

formatting link
Theo

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

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