Re: Updating CPU microcode possible?

[Andrey Borzenkov]

В Sat, 31 May 2014 12:18:06 +0300
Nikos Chantziaras <address@hidden> пишет:

> (I've tried posting this before I subscribed, since 
> http://www.gnu.org/software/grub/grub-mailinglist.html says that 
> "subscription to the list is not required to post a question." But that 
> failed. So I'm trying again, after having subscribed...)
> 
> 
> Hello.
> 
> Is it possible to update the CPU's microcode (an Intel CPU, in this 
> case) with Grub? Meaning before the operating system starts.
> 

Not that I'm aware of.

> I'm using Grub 2.02 beta 2 to boot three operating systems on my machine 
> (Gentoo, FreeBSD and Windows 8.1.) It would be nice if I could make Grub 
> do a microcode update before booting any of those operating systems. 
> Right now, I am only able to a microcode update in Linux, after the 
> kernel is booted.
>

Someone will need to write grub code to do it.