Re: [gentoo-user] Testing new kernels - saving dumps / strip down kernel options

["Stefan G. Weichinger" <lists@xunil.at>]

Am 11.01.2013 07:28, schrieb Stroller:

> I most always take the .config from a recent systemrescuecd and it
> has always worked well for me.
> 
> I change "processor type and features" and disable the initrd.

What to choose for a i7-2600 ... ?

> There may be some stuff on a LiveCD based distro which is optimised
> for running off an optical disk, so I guess a RedHat or Ubuntu
> default .config might be better.

Ah, ok, might be.
I took one from gentoo as I assumed the config might fit the
gentoo-sources better somehow (although I still don't know what patches
are applied to vanilla-sources to get gentoo-sources ... I just thought
the config might somehow make use of those changes).

> These should provide everything you need to boot, and most everything
> else as modules, which will be automatically loaded. IMO this is
> pretty much optimal.
> 
> The engineers at RedHat and Ubuntu know a heck of a lot more about
> kernels than I do. One might be able to make one's kernel
> milliseconds more efficient by tuning it by hand, but it will surely
> take hours of tinkering to attain that.
> 
> I do not believe you can properly understand the consequences of any
> given kernel option merely by reading the one- or two-line
> description in makeconfig's help. To *properly* customise a kernel
> for oneself will take more research than that, I reckon.

Yep. I don't look for those last milliseconds, I just want to get rid of
some old stuff I might drag along for years already ...

Thanks, Stefan