[CentOS] IOMMU and kernel (solved?)

Fri Apr 3 19:26:57 UTC 2020
Georgios <gpdsbe+centos at mailbox.org>

No Centos 8.

Funny thing... i didnt find alot of info online about that problem. 

I was guessing other people could run to the same problem with me.

Anyway. I dont know what happened either :-s

Thanks


On Fri, 2020-04-03 at 20:55 +0200, Simon Matter via CentOS wrote:
> Hi,
> 
> > I think i might have solve it.
> > 
> > For some reason grub2-mkconfig doesnt work.  (Have no idea why)
> 
> Is this on CentOS 7?
> 
> Well, yes, I remember that it didn't work for me when I installed new
> servers one or two years ago, that was with CentOS 7 and they were my
> first EFI installs.
> 
> > I manage to solve it with grubby.
> > 
> > sudo grubby --args="intel_iommu=on" --update-kernel=ALL
> > 
> > For some reason it works. I dont know if it works if my kernel gets
> > upgraded.
> 
> I have restored the original configs after messing with grub2-
> mkconfig and
> only used kernel installs to further modify grub config. That way it
> has
> always worked for me. And I was a bis scared by the whole EFI, grub2
> and
> everything around it because I felt I don't really understand how it
> all
> interacts in detail.
> 
> Regards,
> Simon
> 
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