[CentOS] CentOS 6 - Does EFI have an impact beyond the boot sequence?

Nux! nux at li.nux.ro
Mon Oct 15 05:09:16 EDT 2012


On 15.10.2012 09:31, Mathieu Baudier wrote:
> Hello,
>
> I am using an up to date CentOS 6 x86_64 laptop (Thinkpad X220t) and
> after struggling a bit I could install it a few months ago with a 
> pure
> EFI boot.
>
> However, I am not really satisfied with such things as stability,
> power consumption, etc. and now that I have a little more time I want
> to investigate these issues thoroughly.
>
> So, my questions are:
>
> - Does EFI impacts other things than the boot sequence? (a friend of
> mine told me that this is a complete replacement of BIOS, and thus
> impacts "everything")
>
> - Could it change (improve?) stability, power consumption, etc. if I
> would reinstall CentOS 6 using the traditional boot? (or is it just a
> legacy wrapper around an EFI "BIOS"?)
>
> Thanks in advance for your advice or for providing more details about
> what you know about EFI pro and cons!

Hello Mathieu,

Not sure about the EFI as I'm avoiding it as the plague, but on Intel 
platforms there are some issues regarding power consumption. Here's what 
I do:
http://www.nux.ro/archive/2012/10/EL6_power_usage_optimisation_on_Intel_Sandy___Ivy_Bridge.html

-- 
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro


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