From: Brent Cook Subject: Re: Sysupgrade on i386 vmm to current snapshot hangs on boot into upgrade kernel To: Thomas de Grivel Cc: Alexander Bluhm , OpenBSD technical list Date: Thu, 26 Mar 2026 11:20:14 -0500 On Thu, Mar 26, 2026 at 8:35 AM Thomas de Grivel wrote: > I could not boot OpenBSD i386 on an amd64 VM, how did you do ? > I mostly just followed the FAQ VMM guide. It was a bit of a struggle getting the networking correct. I had some non-typical routing on my host box, and it made the NAT recipe not work initially. > > On Thu, Mar 26, 2026 at 2:18 PM Alexander Bluhm wrote: > > > > On Thu, Mar 26, 2026 at 12:42:41AM -0500, Brent Cook wrote: > > > I was trying to sysupgrade -s a 7.8 VMM machine to a 7.9 snapshot, but > the > > > upgrade hangs on boot, and am not quite sure how to proceed. Is this > > > something that should work? > > > > > > I can reset the machine and it comes back fine with the old kernel > again. > > > The host machine is already running a 6.9 snapshot from this week. > > > > Running OpenBSD i386 as guest in vmm/vmd is quite broken. Sometimes > > it hangs durign boot soemwhere at "scsibus1 at softraid0: 256 > > targets". But the hang happens not reliably, sometimes the machine > > is runnig fine. This makes tracking the bug down difficult. > > > > We made some experiments with various versions of the host system > > and the bug is present at least since OpenBSD 7.4. > > > > bluhm > > That's good to know, that matches what I'm seeing. It is definitely hanging reliably at least with the small/install kernel, so I might be able to bisect where it's stuck.