" Manual verification with dd, efibootmgr etc. should confirm installation of the
bootloader code to the selected disk "
Not that many people will know what this means. Can you add sample commands how to do
this? How do I tell that bootloader is present using dd?
" Boot the system from another bootloader (if you used a test system with a working
bootloader configuration) or a live image and verify using dd, ls, efibootmgr etc. that
the installer did not install a bootloader "
The same comment as above, and more. This is actually even harder. If we want to compare
the first xxx KB of the disk, we need to make a dd copy in advance, before the
installation. So that should be mentioned in the test case, otherwise people find out too
late.
"Boot the system from another bootloader" means that I should try to boot the
newly installed system from a bootloader placed on a different disk (in this case,
configuring all the correct parameters is really hard and just a few people will be able
to do it without instructions), or that I should boot a completely different OS (already
present) and use dd for verification that boot area wasn't touched. In the latter case
we will verify that the bootloader area wasn't touched, but we won't verify that
the newly installed system boots. Which is... suboptimal. The same goes for LiveCD
verification.