Updates broke an HVM qube

[drogo]

I recently updated a fedora 28-based qube that I have running in HVM mode. I also updated dom0 at about the same time. So I'm not sure which update caused the issue.

Now when I attempt to start the qube, the terminal for the template (and its dependent appVM) will only display what looks like static. Or if you're old enough, what the TV looked like when you messed with the horizontal hold too far. :)

The VM seems to be running, as if I type "shutdown -h now" in the unintelligible terminal, the VM shuts down.

Any tips? I'm hoping to avoid having to re-build this qube from scratch.

Thanks.

[Mike Keehan]

Try a different terminal emulator - xterm, xfce4-terminal.

[Kyaphas Hill]

Sheesh, I should've thought of that. No luck though. Same result in another terminal window.

I tried updating by typing "sudo yum update -y && shutdown -h now" in the blind. And while that command worked (it ran for a while, then shut down), the problem still persists.

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[Mike Keehan]

On Fri, 26 Oct 2018 16:58:09 -0400
Kyaphas Hill <kyapha...@gmail.com> wrote:

> Sheesh, I should've thought of that. No luck though. Same result in
> another terminal window.
>
> I tried updating by typing "sudo yum update -y && shutdown -h now" in
> the blind. And while that command worked (it ran for a while, then
> shut down), the problem still persists.
>

Hmm. Did you try resizing the terminal window by dragging a corner?
I've a vague memory of seeing something like this in the past, but
not on Qubes.

Mike.

[drogo]

Moving the terminal windows around doesn't help. I decided to build another HVM template from scratch, but got the same result when I set the kernel to "none" and the virt_mode to "HVM".

Then I tried setting the appVM back to PVH and a qubes kernel. It booted fine. But of course my ZFS modules are compiled for the latest 4.18 distro kernels, so they don't load.

So, something about the distro kernel doesn't like the new updates for dom0?

[drogo]

I meant resizing the terminal windows. Not just moving. Tried that on both. Fullscreen, minimize, etc.

Thanks.

[awokd]

drogo wrote on 10/31/18 2:14 AM:

https://github.com/QubesOS/qubes-issues/issues/3178#issuecomment-397874838

[drogo]

I thought I had already replied to this, but apparently not.

I checked the above link and sure enough, I had several issues with modules on the distro kernel. I attempted to rebuild them, but it still didn't work. So I ended up compiling the zfs modules on a new HVM template after applying the manual u2mfn re-build, and that worked. I then pointed my old appVM to the new template, and am all set.

Thanks for all your help!!