How to BIOS-boot from NVMe device?

[Paul Goyette <paul%whooppee.com@localhost>]

I'm trying desperately to retire my way-too-old spinny-rust, but I
have run into a little problem.

I have completely disconnected the wd0 and wd1 hard drives, and now
the motherboard/BIOS can't find something (primary boot?).  It does
not give any helpful messages (no messages at all), but just goes
back to the interactivve BIOS screens.

I'm guessing I need to install some primary boot blocks, but I do
not know how to do this for gpt drives (ie, wedges).  I know how to
handle on disklabel'd drives, but not gpt.

For now, I have reconnected one of the wd drives and it's working,
but I really don't want to depend on drives that have been running
more-or-less 24x7 for 10+ years!

Thanks in advance for any help!

PS I _do_ have a msdos/efi partition on the nvme, but I don't know
what to put there!  :)


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