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[Ralf Mardorf]

On Wed, 2018-10-10 at 13:13 +0200, Liam Proven wrote:
> Honestly, I am not brave enough to try this using Linux.

I've got similar concerns. I'm using the ocz-ssd-utility without
concerns, since it's from the vendor. The SSDs are warranted and I've
got backups of everything on those SSDs. For a BIOS upgrade I simply
store the download on an USB stick or an USB HDD and do the update using
the BIOS. I anyway tend to store BIOS settings first and restart the
machine after updating, so there's no reason to risk anything using a
Linux tool.

http://manpages.ubuntu.com/manpages/xenial/man1/fwupdate.1.html

https://github.com/rhboot/fwupdate

Too many terms I never heard before and that I don't understand, let
alone that I don't have an "EFI system partition".

I don't understand how to use fwupdate.

Updating the BIOS, using the BIOS itself isn't an issue at all...

$ sudo dmidecode | grep Base\ Board\ Information -A2
Base Board Information
	Manufacturer: Gigabyte Technology Co., Ltd.
	Product Name: B85M-D3H
$ sudo dmidecode | grep BIOS\ Information -A3
BIOS Information
	Vendor: American Megatrends Inc.
	Version: F15
	Release Date: 08/20/2015

...even without taking a look at the mobo, to find out the revision,
since all revisions 1.x share the same download link
https://www.gigabyte.com/Motherboard/GA-B85M-D3H-rev-10-11#support-dl-bios
https://www.gigabyte.com/Motherboard/GA-B85M-D3H-rev-12#support-dl-bios

and the name pattern for BIOS versions of revisions 2.x boards is
completely different.