unix.stackexchange.com/questions/266094/… and related link on centOS forum centos.org/forums/viewtopic.php?f=47&t=56482. If someone could help it will be much appreciated

@SolidSnake Why do you want to install grub? Why not use the efi boot manager directly? Grub just adds an extra step between you and the efi boot manager.

@terdon Well. That's what CentOs install wizard does. How do I make run the OS without grub?

The system installed on the first hard disk is run by efi using EFI\centos\shim.efi that for what I can understand calls grubx64.efi and then grub. Is it right?

@SolidSnake I am not very knowledgeable about this. However, I do know that EFI systems have their own bootloader and no longer need grub. The system I am writing this from doesn't have GRUB installed, for example.

I've only ever done this once though and am very much still learning about it. I don't think I can really help here. Try reading up on the EFI boot process and its boot manager. I'm pretty sure you'll find that you can just ignore grub alltogether.

@terdon I will read on that. Ty

That's an interesting question though. Remind me tomorrow (need to wait 48 hours) and I'll offer a bounty, that should get it some attention.

@terdon Ok. Thanks!

@terdon A world without GRUB. Yay!

This guy clearly has trouble with English, could benefit from a Spanish? speaker

@terdon Dammit, we were eiting the same question at the same time. Bugger.

And I don't think he really meant update.

@FaheemMitha Yeah, sorry, just saw mine et yours.

Also, he probably didn't mean configuration. Presumably he deleted the packages.

Give me 5 minutes, I'll make some changes.

Go for it. I'm not sure about the configuration bit. That doesn't make sense in Spanish either.

And he can't have meant update. So was he trying to upgrade, or install?

@terdon All done, modulo the update thing.

@terdon you forgot a second "it's" on unix.stackexchange.com/a/266313/123978

hence the /g