Comment # 46 on bug 1226122 from Felix Miata

I've spent the past nearly 3 hours composing a reply to comment #39. I have no
idea how long it will take to finish. This reply is a mental change of pace and
sidetrack needed due to shortage of sleep since I discovered this bug report,
and no sleep in the past 24.

(In reply to Martin Wilck from comment #42)

It's a workaround I don't like. It's not KISSing. Messing with selections, to
see what actually occurs as a result of a given mouse click on the installer
boot screen with a mouse that moves the pointer as any button is clicked has a
propensity to make the screen reinitialize itself, re-enabling update NVRAM.

The real issue is only one bootloader and one ESP is needed per computer.
Allowing write access to an ESP, and even more to NVRAM, has a remarkable
propensity to fubar a previously perfectly working boot system. Not KISS having
multiple NVRAM entries. It seems no two UEFI BIOS are alike, except that they
misfeature too many of the same bugs. Keeping the ESP inaccessible by not
mounting it is insurance.

When I want an irregular boot, I edit the regular stanza. When a system won't
boot at all, I boot something else to access logs and proceed with repair.

I don't not have an ESP on UEFI systems. I have one ESP on each UEFI computer
(on normal boots). I just don't mount it to /boot/efi/ except on the boot
control OS.

Merging sounds like good plan.