make menuconfig - Processor Family

Zelt · n00b Joined: 07 Jul 2014 Posts: 72

I have a i7 4770k processor.

After running

cd /usr/src/linux
make menuconfig

The options list reads

[quote]
[ ] Opteron/Athlon64/Hammer/K8
[ ] Intel P4 / older Netburst based Xeon
[ ] Core 2/newer Xeon
[ ] Intel Atom
[*] Generic-x86-64

Should I change from generic-x86-64 to Core 2/Newer Xeon?
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k.

Perfect Gentleman · Veteran Joined: 18 May 2014 Posts: 1249

DONAHUE · Posted: Tue Sep 16, 2014 8:45 pm Post subject:

Hu · Moderator Joined: 06 Mar 2007 Posts: 21631

my.Gentoo.Asus.Z87-A · n00b Joined: 11 Sep 2014 Posts: 7

Roman_Gruber · Posted: Mon Sep 22, 2014 7:48 am Post subject:

Just out of curiousity.

Do i need the cpu features enabled in the kernel first?

Is it not enough to have it enabled in /etc/make.conf so they are pulled in by gcc and used?

mgs · n00b Joined: 25 Oct 2014 Posts: 21 Location: dc

i92guboj · Posted: Mon Oct 27, 2014 12:22 pm Post subject:

tw04l124, yes, you need it. The make.conf settings do not affect the kernel compilation at all. To start with, the kernel is not compiled by emerge, which is about the only thing that cares about your make.conf file (for the purpose of this thread anyway).

The kernel is not a conventional piece of software anyway, and it for sure won't work ok (if at all) with any crazy CFLAG you throw at it.

mgs, what's the output of "uname -a"? Please, post the output for gcc-config -l and emerge --info as well.

mgs · n00b Joined: 25 Oct 2014 Posts: 21 Location: dc

Thanks for the quick reply, i92guboj. I will post those outputs as soon as I get back to my (patiently waiting) chroot-ed machine. :mrgreen:

Ant P. · Watchman Joined: 18 Apr 2009 Posts: 6920

mgs · n00b Joined: 25 Oct 2014 Posts: 21 Location: dc

i92guboj · Posted: Wed Oct 29, 2014 1:22 pm Post subject:

As far as I can tell, you have booted from a parted cd which has an x86_64 (64 bits) kernel, but you are chrooted into an i686 Gentoo stage, and you can't install a 64 bits Gentoo from there.

You have to download the correct stage (which is the amd64 one, despite of you having an intel i7 cpu, don't let the name of the file fool you). Use that instead and you should be able to compile a 64 bits kernel. Your emerge --info will then show the right architecture all around, also.

i92guboj · Posted: Wed Oct 29, 2014 1:27 pm Post subject:

Also, in which regards cutting and pasting, if it's pure console you need to do /etc/init.d/gpm start to be able to use the mouse in console, then select and paste with middle button click.

In old X programs middle click should also work.

mgs · n00b Joined: 25 Oct 2014 Posts: 21 Location: dc

Ah, OK. Yes I had some confusion about that. Over time as I occasionally referred through the gentoo stuff I had always thought that the amd64 was the correct flavor for the hw I've been using. It was only my recent reading which caused me to go to the i686.

I will switch, and continue flailing. Thanks a million!

i92guboj · Posted: Wed Oct 29, 2014 1:40 pm Post subject:

amd64 is only such for historic reasons: the first x86_64 cpu for regular pc desktop users was from AMD (ia64 is a different incompatible thing).

Just like they often say i686 or i386 to really mean i80368 compatible cpus (it doesn't matter if it's an intel, amd or cyrix cpu or whatever else as long as it can run software compiled for the original i386.

You can use the i686 image, but then you will have to choose a 32 bits architecture and your final installation will have that bit-ness as well.

mgs · n00b Joined: 25 Oct 2014 Posts: 21 Location: dc

Yes I was aware of the history. What threw me off was looking at the mirror sites and not even seeing the amd64 iin some of them. I also thought I had read that recent build conventions had lumped all the 64s into the i686. A significant error on my part, apparently.

Hopefully all will be well when I get back to it with the right stage. I should probably clean house of the old directories before unpacking the new tarball and installing, yes?

krinn · Watchman Joined: 02 May 2003 Posts: 7470

mgs · n00b Joined: 25 Oct 2014 Posts: 21 Location: dc

Yes, thanks. I was just about to come back to express thanks for so quickly spotting such an obvious rookie mistake, and also to add--for (m)any who may have been thinking it:

Duh. :mrgreen:

i92guboj · Posted: Wed Oct 29, 2014 3:17 pm Post subject:

Yes, clean your system before. Proceeding with a new install. You will need to start from scratch, but it for sure will be easier this time

Don't worry about mistaking in the way. It's what Gentoo is all about. People in mainstream distros never go wrong, they have people above them which do that for them. :lol: