AMD Motherboards - B450 PRO4

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B450 PRO4 - buggy UEFI?

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=12612
Printed Date: 05 Aug 2025 at 9:20pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: B450 PRO4 - buggy UEFI?

Posted By: mimino
Subject: B450 PRO4 - buggy UEFI?
Date Posted: 07 Oct 2019 at 10:42pm

I've been trying to create a boot option in UEFI using Shell v2 and I'm unable to add boot options.

This command works w/o issues and the new choice is added to the boot menu:
Shell> bcfg boot add 0 fs0:\vmlinuz-linux "Arch Linux"

This command does nothing and produces no output:
Shell> bcfg boot -opt 0 "root=/dev/sda initrd=\initramfs-linux.img"

Dump says entry 0 Optional: N
Shell> bcfg boot dump -v

I tried adding options from file and it didn't work either.
Shell> bcfg boot -opt 0 FS0:\options.txt

From my experiments It appears that options are ignored altogether.
The output of Shell> setvar Boot0000 doesn't change with options added.

Anyone has any clue what's going on here?

Replies:

Posted By: mimino
Date Posted: 22 Oct 2019 at 11:11am

Bump! Really, nobody?

Posted By: mimino
Date Posted: 14 Nov 2019 at 3:37am

POS board and support. Done with ASSRock.