Hi all!
After recent update one of my SBCs became unbootable due to strange udev behavior. This SBC uses /dev/sda1 as / which itself is an USB HDD. When udevadm trigger is run, USB hub disconnects thus removing /dev/sda entirely and is afterwards added again with /dev/sdb for the same disk. Can anyone explain why does this happen and how to fix it? I tried with both mainline and lts kernels, also tried to downgrade udev. Dmesg from this case: https://paste.artixlinux.org/f750d748 (https://paste.artixlinux.org/f750d748)
The solution appeared to be adding onboard_usb_hub module to initramfs