UEFI refusing NVRAM writes, breaking GRUB install and upgrade

[vinceh121 <contact@vinceh121.me>]

Hi all,

Southern French government is handing out laptops (HP ProBook x360 G1 
EE) to students, whom a lot of want to install a Linux distro on.

However, many distros installs are broken by grub-install either safely 
failing, or making the kernel hang while trying to write NVRAM boot 
options. I've confirmed this on Debian Buster and Bullseye.

This causes the netinst images to give us a mostly working installation, 
except for a config-less GRUB. For now, we've gone around this by 
manually booting with the GRUB CLI, and then running grub-install with 
the --no-nvram option.

However, the problem reappears when running apt upgrade.

Is there a way to mitigate this problem? Maybe a way to tell 
grub-install to always use --no-nvram?

Thanks,
 - vinceh121