Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

My main system runs on Lucid Lynx 10.04, and since it's running rather well I do not wish to upgrade yet.

However the graphics chipset X1700/V5250 doesn't work well for games. The open source driver is insufficient. And the substandard vendor doesn't bother to release the binary driver for current Xorg versions.

So that made me pondering options. The notion of using the Xorg-edgers PPA makes me shiver. But I assume it might be possible to install another Ubuntu version as separate userland debootstraped onto my system. Hardy Heron 8.04 would be a good idea if I wanted to persue the binary driver option. This would give me an older Xorg, but I'm very unsure if that fglrx/catalyst driver would be compatible with the 10.04 kernel - since the binary driver needs some kernel hook I believe.

I've just tested Maverick, and the open source driver is objectively faster than the Lucid version (tested a few 2D/3D games). So this might be a better option. I'm unsure if I will see the same effects, if I just install the 10.10 userland and Xorg. So that's my question.

Can a debootstrap 10.10 setup /maverick/ actually work under a Lucid basesysten? Any caveats for the installation? And would it be possible to leave my main Xorg running, and chroot into /maverick/ and run the newer Xorg on another VT?

Alternative: Is there a simpler way than debootstrap to install a secondary Lucid Lynx side-by-side (no partition) so I can toy with Xorg-edgers safely?

share|improve this question

2 Answers 2

up vote 1 down vote accepted

You certainly could install and use Maverick userland. Check out my answer to a similar question for a brief howto.

It's likely that some of the performance improvement you noticed in 10.10 is due to the newer kernel, and 10.10 userspace might not work properly on the 10.04 kernel. Fortunately, it's quick, easy, and safe to have multiple kernels installed in parallel. Grab the linux-lts-backport-maverick kernel from lucid-updates and you'll be able to boot into the newer kernel.

share|improve this answer
    
Gave it a try. Maverick userland works perfectly, there are the same X11 speedups even without the kernel. But I might try that as well. Only I've used xinit -- :1 vt8 instead of startx for a separate server. –  mario Dec 21 '10 at 10:07

Why not test it from a live cd or live usb? Just add the ppa during that session and run the upgrade, log out and back in and see if it works. Unless you need a new kernel, this way will work fine.

share|improve this answer
    
Not sure if this is to succeed within the constraints of a livecd. (But trying anyway). The overlay filesystem is often insufficient to install extra software, and an Xorg update is rather consuming. Also a testrun on an unvaried livecd might not reveal the true effects on a customized installation. –  mario Dec 20 '10 at 17:53
    
I have tested software with no problem, I suppose you would run into issues if you have a low amount of RAM though. –  NightwishFan Dec 20 '10 at 19:25

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.