arch [solved]

idella4 · Posted: Mon Jan 18, 2010 1:59 pm Post subject: arch [solved]

I've been using gentoo for a long time and have tackled kernels many times, but I have a couple of basic questions re arch.
I've always dealt with 32 bit systems, but a long time ago I replaced the motherboard and now have a 64 machine.
I've just damaged and repaired my gentoo by trying to switch to a 64 profile, only proving I need a new fresh install to switch, but re kernels;
I've just emerged the current xen kernel and it's just compiled. I've viewed a few posts and have followed a standard guide, but am left puzzled by some basics. Firstly from the guide:

audiodef · Posted: Mon Jan 18, 2010 2:13 pm Post subject:

I'm not qualified to answer your questions in detail, but I believe you do need to do a fresh install if you're changing from 32 to 64 bit. I think I wanted to "upgrade" some time ago and learned that this is not something you can "upgrade". It has to be done 32 or 64 bit from the start.

I'm sure others will step in with better answers for you.

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idella4 · Posted: Mon Jan 18, 2010 4:05 pm Post subject:

audiodef, yes you're right, your not qualifed, and it does require a fresh install which I am about to do. But that wasn't my question.
To update, Ive compiled the thing and ran it in my gentoo. It took one second to pull up. Message about 32 bit system stipulated, faced with a 64 bit kernel.
That puts me ahead of myself. I want a 32 bit version first. It seems I have a 64 bit version!!!

So, someone else. How to config for a 32 bit and make sense of the muddled instructions from the gentoo doc.

oh I am quite confused. I compiled this kernel in my healthy 32 based gentoo system and posted the post.
I've switched over to a 64 bit debian lenny, to which I am going to try the gentoo xen kernel. I've made what appears to be a 64 bit kernel, but maybe it's not.
I've copied the gentoo kernel source over to lenny tried when yesterday which didn't work. Now I've just copied the .config over
from my gentoo to lenny's copy of the source and was about to recompile it, and I get this

Mike Hunt · Watchman Joined: 19 Jul 2009 Posts: 5287

Not sure if this is relevant; can you set up a 32 bit chroot on a Gentoo 64 machine and build a Gentoo 32 kernel from there?
How to set up a 32bit chroot

idella4 · Posted: Mon Jan 18, 2010 4:55 pm Post subject:

yes, Mike see IM.

I'm not concerned re chroot, I'd like some comment to explain this new config occuring. It's confusing and unexpected.
It's more than coincidence that a 64 bit system delivers a config with above settings which match
what I had claimed as previously missing. I'm dealt with an unconfigured .config after spending hours preparing one in gentoo,
Well it will take less time to repeat, but why waste hard effort?

review, just reviewed the config. It's not completely unconfigured. My previous settings were also in place, so does the system have some background settings that deliver an arch appropriate config file???

If so, what happened on my gentoo with the misfire that occured with the kernel I prepared in my 32 gentoo?
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audiodef · Posted: Mon Jan 18, 2010 5:33 pm Post subject:

idella4 · Posted: Tue Jan 19, 2010 12:52 am Post subject:

audiodef, I'm too consumed in being confused to have time to be an ass. That's not my intent.
I just look forward to posts that will resolve. You're right in what you suggest, I'd just already established that myself anyway.

The point at hand is how to configure a 32 vs 64 bit kernel. Can someone clarify what's going on here?

On boot, it reads