Re: upgrading my dom0 box (again?) - foolish?

[Jeff Rizzo <riz%tastylime.net@localhost>]

On 10/24/25 12:05, Manuel Bouyer wrote:

> On Fri, Oct 24, 2025 at 11:03:40AM -0700, Jeff Rizzo wrote:
> > [...]
> > So.  Is there any hope for moving this to Xen 4.20 and a NetBSD 10.1 dom0,
> > or should I just leave well enough alone and phase this system out
> > entirely?  (I certainly want to do that in the long run, but it feels like
> > it could give me another couple years)
> >
> > If I were to do an upgrade, can someone suggest a good order of operations
> > with fallback?  Apologies for the vagueness of this - but clearly I've been
> > out of Xen world for a while now.  :)
> I can't see a show stopper here for 4.20.
> But I would avoid upgrading both Xen and the dom0 OS at the same time.
> So I would first go with Xen 4.18, which should work with netbsd-9
> (maybe you'll have to upgrade the dom0 kernel to the latest 9-stable).
>
> Then, if all is well I would upgrade the dom0 to netbsd-10, and then Xen
> to 4.20
>
> It's been a long time since I used pygrub; I think it has been deprecated
> by Xen. But you can just copy the kernel to the dom0


This is very helpful.  As I've been digging back in, luckily a lot of 
this is becoming familiar again.  :)   I've so

far managed to at least remember how /boot.cfg and all that fits in, and 
I've done a from-scratch reboot just

to make sure it all comes back as expected - thus far, no problems, so 
I'll follow your suggestion and try

Xen 4.18 next!


Thanks,

+j