Blank screen after Armbian 20.04 install to emmc?
10-13-2021, 11:43 AM
Hello,
I've been using Manjaro on my PBP, but coming from a Ubuntu background decided to give Armbian a try. I managed to first install Armbian Focal (directly from armbian.com) first on a USB thumbdrive, then from emmc, both successful - but then I decided try Armbian Hirsuite directly on emmc. I booted from the USB drive (Armbian Focal) and wrote the (unxz'd) image to /dev/mmcblk2 (only mmcblk device).
And now it doesn't boot. Here's the weird thing: I don't even see the usual Uboot messages flash by... did I manage to break it somehow? I thought writing to /dev/mmcblkX (no suffix) would write only to the "user" part.
The PBP doesn't change it's behaviour if I try booting off the USB thumbdrive. That drive is unchanged from the time I did the write to emmc, so it should be good in theory.
The power LED does indicate something is happening, luckily. From the (presumed) off state, pressing the power button a few seconds turns the LED on, first red, then shortly after green. If I tap the power button again a bit after, the LED goes off again after a short delay.
Any advice? If I can fix this without opening the case that'd be great, but I'm not too afraid to open it up either, and can wire myself a UART adapter if I have to (Waveshare CP2102 board, I just need to find a spare 3.5mm stereo jack in my parts bin). Or would even be pushing the reset button suffice?
Thank you for any hints!
I've been using Manjaro on my PBP, but coming from a Ubuntu background decided to give Armbian a try. I managed to first install Armbian Focal (directly from armbian.com) first on a USB thumbdrive, then from emmc, both successful - but then I decided try Armbian Hirsuite directly on emmc. I booted from the USB drive (Armbian Focal) and wrote the (unxz'd) image to /dev/mmcblk2 (only mmcblk device).
And now it doesn't boot. Here's the weird thing: I don't even see the usual Uboot messages flash by... did I manage to break it somehow? I thought writing to /dev/mmcblkX (no suffix) would write only to the "user" part.
The PBP doesn't change it's behaviour if I try booting off the USB thumbdrive. That drive is unchanged from the time I did the write to emmc, so it should be good in theory.
The power LED does indicate something is happening, luckily. From the (presumed) off state, pressing the power button a few seconds turns the LED on, first red, then shortly after green. If I tap the power button again a bit after, the LED goes off again after a short delay.
Any advice? If I can fix this without opening the case that'd be great, but I'm not too afraid to open it up either, and can wire myself a UART adapter if I have to (Waveshare CP2102 board, I just need to find a spare 3.5mm stereo jack in my parts bin). Or would even be pushing the reset button suffice?
Thank you for any hints!