How did you set the kernel? I have tried:
[zby@dom0 ~]$ qvm-prefs -s netvm-fedora-29-template kernel 'none'
qvm-prefs: error: Kernel 'none' not installed
[zby@dom0 ~]$ qvm-prefs -s netvm-fedora-29-template kernel none
qvm-prefs: error: Kernel 'none' not installed
[zby@dom0 ~]$ qvm-prefs -s netvm-fedora-29-template kernel '(none)'
qvm-prefs: error: Kernel '(none)' not installed
[zby@dom0 ~]$ qvm-prefs -s netvm-fedora-29-template kernel ''

The last one worked - but then the vm does not start anymore. I get an
error that it did not start for 60 seconds.

Maybe I should try running grub before changing the kernel - but that
does not work either:
bash-4.4# grub2-install /dev/xvda3
Installing for i386-pc platform.
grub2-install: warning: File system `ext2' doesn't support embedding.
grub2-install: warning: Embedding is not possible.  GRUB can only be
installed in this setup by using blocklists.  However, blocklists are
UNRELIABLE and their use is discouraged..
grub2-install: error: will not proceed with blocklists.

I don't quite understand that error - because it should be ext4:
/dev/xvda3 on / type ext4 (rw,noatime,discard,data=ordered)


ZŁ

On Wed, Mar 27, 2019 at 5:30 AM <[email protected]> wrote:
>
> Hi,
>
> I've been trying to get Wireguard up and running following the instructions 
> referenced from this issue:
>
> https://github.com/QubesOS/qubes-issues/issues/3591
>
> I've tried installation in both Fedora 29 and Debian 9-based templates. The 
> problem is, I can switch to HVM mode, but as soon as I set the kernel to 
> "(none)" in either template, any attempt to bring up a terminal gives me a 
> window with distorted graphics inside. My impression is that kernel has to be 
> none for the kernel modules to be loaded properly?
>
> I'm not really sure why this is happening. Dom0 has a different DPI setting 
> than the baseline templates, although that doesn't seem to cause problems 
> usually. I would appreciate any help.
>
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-- 
Zbigniew Lukasiak
https://medium.com/@zby
http://brudnopis.blogspot.com/

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