I have an OnePlus6 (enchilada) which was working fine with LineageOS 16. I've just upgraded it to 17.1 following the official upgrade doc and using OpenGapps.
Now, after the whole procedure, I am stuck in the fastboot menu, where I can either shutdown or boot to recovery.
How do I troubleshoot? Is there some way to gather boot logs? Or maybe there's a way to turn the boot process into a more verbose one?
(I tried booting into recovery, only then I get
adb access, but no
/proc/last_kmsg there as people suggest, and the
/proc/kmsg contains only the recent boot logs)