MSI Motherboard fails to load ZFSBootMenu

[gmemstr]

ZFSBootMenu build source

Release EFI

ZFSBootMenu version

2.3.0

Boot environment distribution

Gentoo Linux

Problem description

Less of a ZFSBootMenu issue and more of a MSI motherboard issue (specifically the MAG B650 TOMAHAWK WIFI
), but thought it worthwhile to report here while I investigate further.

Attempting to use the latest firmware available for the motherboard results in it hanging when directed to boot ZFSBootMenu. I have yet to narrow down the exact version that introduced the issue, but it's somewhere between 7D75v15 and 7D75v1J. No logs are produced that could help narrow down the issue.

Not expecting maintainers to fix this, but making a note so if anything else hits this they have a place to land from Google (hopefully). When I have time I plan to track down the exact version and raise an issue with MSI directly.

Steps to reproduce

1. Flash latest version of BIOS available for an MSI motherboard
2. Attempt to boot ZFSBootMenu either with auto-detected UEFI OS entry or efibootmgr-added entry

[jonhermansen]

FYI, I'm running ZFSBootMenu just fine on an MSI PRO Z690-A DDR4 mainboard.