[Bug 277450] "poweroff" does not power off the system when EFI is used

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 01 Jan 2025 02:43:35 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277450

snufflebear87@hotmail.com changed:

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                 CC|                            |snufflebear87@hotmail.com

--- Comment #18 from snufflebear87@hotmail.com ---
I ran into this issue on actual hardware.  The motherboard is an Asus M5A99FX
Pro 2.0, running an AMD FX-8350. 

I'm running Xigmanas 13.3.0.5 - Hesterion (revision 10153), which is based on
FreeBSD 13.3-RELEASE-p4.

It is an older board, and it was the first implementation of UEFI that I had
ever run across.  Since the ICH9 seems to be an older chipset and Virtualbox is
using that, maybe older version of UEFI is what is causing this?

I was able to verify that the workaround of sysctl hw.efi.poweroff=0 solved the
problem in this case as well.

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