Can't boot after upgrading kernel using luks encrypted root fs
Currently on F27 with kernel 4.13.13-300.fc27.x86_64. Anytime I try to install a newer kernel (e.g. 4.13.16-300.fc27) dnf completes correctly, but after reboot the system is stuck after the grub selection menu and before the luks password screen.
I can boot into any prior kernel with no issue. I'm not sure if this is due to kernel or dracut (possibly dracut doesn't build the new initramfs correctly?) dracut version: dracut-046-5.fc27.x86_64
I don't have journalctl of failed boots, as the system doesn't have access to luks encrypted fs at this time. 2 error lines show: dracut-cmdline terminal claiming there is no such device, and dracut-cmdline cgroups claiming the cgroups are already loaded. I don't see any similar lines during a good boot.
Can you check the /var/log/messages after a good boot to see if anything was captured? How about pressing the escape (Esc) key during boot? Any messages display to screen? What's the exact errors from dracut?
@Dani_L don't you have any updates on the issue? I got exactly the same problem. The interesting thing is that even if I don't see luks password screen, I'm able to enter it blindly, and boot process continues. I even managed to login and to run terminal:) So the problem is not with luks and encryption but rather with screen or video drivers. Here I found related discussion, same symptoms.