[Bug 261238] 13-RELEASE installation media hang on booting ThinkCentre M91p

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261238

--- Comment #3 from Greg Lehey <grog@FreeBSD.org> ---
(In reply to Graham Perrin from comment #1)

I have tried this now with 13-STABLE and 14-CURRENT, specifically
FreeBSD-13.0-STABLE-amd64-20211230-3684bb89d52-248759-memstick.img and
FreeBSD-14.0-CURRENT-amd64-20211230-b406897911e-252039-memstick.img.  In each
case the system boots fine.

And yes, I agree that this is a duplicate of
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209821.  I suspect that
comment 66 has the clue:

"I think there were two reasons why UEFI boot froze on some systems. Before the
changes in 13-STABLE and 14-CURRENT, the kernel needed to be loaded to a
specific physical memory location. Copying the kernel to a specific location in
memory could cause problems"

On the other hand, we have a second problem: the original 13.0-RELEASE image is
still on the download site, and looking at 209821 it seems that a large number
of systems are affected.  So I don't think it's appropriate to just close the
bug.  Somehow we need to get usable boot media on the download sites.  My
thought would be to upgrade to a 13-STABLE system, but that's a question for
Releng.  I'll contact them separately.

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