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wolfger
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PostPosted: Wed Dec 28, 2005 4:34 pm    Post subject: Problems with 32-bit installation on AMD64 Reply with quote

Due to a number of factors (including new HD), I have decided to run a dual-boot Gentoo system: one 64 bit (existing) and one 32 bit (new). I am having two rather large problems that I cannot figure out:
1) On boot up, the 32 bit screen jumps over to the right (starting margin slightly more that half way across) and long lines of text wrap around (but the wrap is not clean, and some characters are lost).
2) My nvidia-kernel is refusing to load on the 32-bit system.

Any help would be immensely appreciated.
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brutus
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PostPosted: Wed Dec 28, 2005 5:54 pm    Post subject: Reply with quote

If you are using the same partions for both systems and just selecting a diffenent kenel to load (dual boot) you will have plenty of
problems. The inability to load nvidia seems to point to this..
I run amd64 as main system the run the 32 bit in a chroot jail.
"http://gentoo-wiki.com/HOWTO_AMD64#Applications_without_64-bit_support"
"http://gentoo-wiki.com/HOWTO_AMD64"
These links may help..
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wolfger
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PostPosted: Wed Dec 28, 2005 6:38 pm    Post subject: Reply with quote

brutus wrote:
If you are using the same partions for both systems and just selecting a diffenent kenel to load (dual boot) you will have plenty of problems. The inability to load nvidia seems to point to this..

I have completely seperate root and boot partitions. I share a "shared" partition, which is all media files (mp3, avi, mpeg, jpg, etc) and I also share a /tmp partition between the two.

Quote:
I run amd64 as main system the run the 32 bit in a chroot jail.
"http://gentoo-wiki.com/HOWTO_AMD64#Applications_without_64-bit_support"
"http://gentoo-wiki.com/HOWTO_AMD64"
These links may help..

I'm not sure I really understand what is going on with a "chroot jail". From following those links, it would appear that the 32 bit system runs under the 64 bit kernel, with no kernel of its own. Does that really have all the advantages of running a 32 bit system? Would I chroot in before or after starting X? Rather than following these steps, could I simply chroot into the 32 bit environment I have installed already?
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brutus
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PostPosted: Wed Dec 28, 2005 8:10 pm    Post subject: Reply with quote

Your right it runs under the 64-kernel
The reason to run 32bit jail is to run aps that were not ported yet to 64 bit.
Like some of the macromedia stuff (flash) and some java
But there are other way around that. See in that wiki link
And a few odd aps I use that I have to compile in 32 bit.
So when you complile/install in gentoo32 jail its installed in that enviroment and doesn't walk over
your settings in the 64bit system.
Some partitions are not "shared" but mounted -o bind in the 32 bit jail.
Thats the only reason..sure ain't performance for a desktop-station, Just no need to dualboot for a couple of odd aps.
Search around in gentoo's wiki on the amd64, there some good stuff in there.
Also if you use X windows aps you need to use xhost setup to forward the X to gento32.
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wolfger
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PostPosted: Wed Dec 28, 2005 8:47 pm    Post subject: Reply with quote

brutus wrote:
Your right it runs under the 64-kernel
The reason to run 32bit jail is to run aps that were not ported yet to 64 bit.

My main motivation is that I am not having much luck with Windows games via Cedega, and I thought that if I booted into 32 bit for gaming purposes, it might help me out...
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sirdilznik
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PostPosted: Thu Dec 29, 2005 10:35 am    Post subject: Reply with quote

wolfger wrote:
My main motivation is that I am not having much luck with Windows games via Cedega, and I thought that if I booted into 32 bit for gaming purposes, it might help me out...

I had just as much success running cedega games (WoW, CoH, Morrowind, Fallout 1/2, Half-Life 1/2,etc...) in 64-bit as I did in 32-bit. Since I beat all those games or got bored of them I have not used cedega (thus no more subscription) in over half a year, so I can't speak for more recent games. My use of emulation has almost completely died ( I only use wine for Ares Lite, and that's once in a blue-moon and both will probably disappear from my system soon) since I will no longer buy anything that is not Linux native, ever. Anyway, getting back on topic, I found no advantage to running wine/cedega in 32-bit as compared to 64-bit. However that's just my experiance, your results may be vastly different. You have separate root partitions for both systems and I can't see how sharing /tmp and a shared partition between them could be causing issues, so I'm stumped on that one.
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