Can't boot past grub screen after 4.3 upgrade while using 6.19.5-1.fc41

User Support
1

Hi! I’ve been using Qubes succesfuly for over a year but seems I need some help now.

After the 4.3 upgrade I can no longer get past the grub uefi screen to the luks encryption screen. Screen goes black and resets the machine. The problem seems to be fedora 41 version of Dom0. Using kernel 6.19.5-1.fc37 allows me to enter Qubes as normal. Everything else is seemingly ok. The VMs are working normally while using 6.19.5-1.fc41 kernel. Only Dom0 is affected with this.

I did not find a similar problem while browsing the forum.

More info:

  • I did in place upgrade
  • needed to exclude some custom (windows) templates to for the upgrade script to work
2

Hi Ephemeral - and welcome to the forum! :slight_smile:

Could you try and edit the GRUB options for the default/faulty kernel and:

  • remove quiet from the line starting module2 /vmlinuz-..
  • replace console=none with console=vga vga=,keep loglvl=all guest_loglvl=all noreboot=1 earlyprintk=xen as options to Xen

and boot with this options (Ctrl-x or F10, iirc).

These options should make the machine boot in a very verbose/slow mode - and print all messages, so you can see them … and without the machine rebooting.

:slight_smile:

3

Thanks for the help!
The logs show kernel panic. Could it be that the Fedora 41 based version of Dom0 is incompatible with my hardware?

3fb32a33-0473-4672-8afc-ce37f2067888
3fb32a33-0473-4672-8afc-ce37f20678881920×1446 231 KB

4

Hi Ephemeral

Looks like the kernel doesn’t find/detects the drive you have installed Qubes on – are you willing to describe/share a description of your hardware?

Since you are able to boot with the old kernel, will you share the output of

lspci

?

:slight_smile: