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Old 10-09-2009, 12:49 PM   #1
moxieman99
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Live CDs that work with multi-core processors


I recently bought a new computer with an AMD 4-core processor, 64-bit architecture. My knoppix 5.1.1 live CD won't work in it though, saying after installation that it cannot find the kernel, and goes to a limited shell.

Now, in a single-core set-up, when knoppix is installing itself into RAM, one penguin displays during the verbose install. On this new computer, 4 penguins show up, so I think it's a question of knoppix trying to install parts of itself into 4 cores.

1. Is there a live CD distribution that works well with 64-bit architecture and a CPU chip running 4 cores?

2. When knoppix 5.1.1 drops me to this limited shell, is there some command I can use to make it find its kernel?

I'll be checking full-install distros that work with multi-core chips later. Right now I just want a decent live CD or DVD, since the computer is poisons with Vista and I want to make sure I can get into it.

Thanks,

Moxieman
 
Old 10-09-2009, 01:21 PM   #2
ordinary
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Recent Linux kernels support SMP (symmetric multiprocessing) by default; there's no separate special SMP kernel. I doubt your problem is with SMP features of Knoppix, but, of course, I'm not positive. Seems to me that if you are a limited shell, the kernel's running.

I use CentOS (5.2), Fedora(10), and Ubuntu(9.4?). Fedora and Ubuntu both have 64 bit live disk distributions, and both support SMP.

Good luck,
Phil
 
Old 10-09-2009, 01:38 PM   #3
johnsfine
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Quote:
Originally Posted by moxieman99 View Post
I recently bought a new computer with an AMD 4-core processor, 64-bit architecture.
More info about the computer might help us help you.

Quote:
My knoppix 5.1.1 live CD won't work in it though, saying after installation that it cannot find the kernel, and goes to a limited shell.
More info about the error message might help us help you.

But it might be easier to just try a different liveCD.

Quote:
I think it's a question of knoppix trying to install parts of itself into 4 cores.
I think your diagnosis is incorrect and the problem is entirely unrelated to the fact that the CPU has 4 cores.

Quote:
1. Is there a live CD distribution that works well with 64-bit architecture and a CPU chip running 4 cores?
I'm sure any 64 bit liveCD works well with 4 cores. Almost any 32 bit liveCD also works well with 4 cores and any so old that they don't work well with four cores will work well with one of the four core and ignore the other three.

Number of cores is almost certainly not the problem.

Quote:
Right now I just want a decent live CD or DVD, since the computer is poisons with Vista and I want to make sure I can get into it.
I tried a few liveCD's on an Alienware laptop (that my son later returned, because of problems in both the pre installed Vista and the free "upgrade" to pre release Windows 7).

Other than Centos 5.3, all the liveCDs failed during Grub. Grub loaded, but it then was unable to see the image it had just loaded from (nor could it see the raid1 disk array), so grub was running in memory but could see no media.

I don't know much about the CD boot process, so I don't know what BIOS features are used by Grub during that process. I'm assuming that BIOS wasn't compatible.

I also don't understand what the Centos 5.3 liveCD uses in place of the Grub that the other LiveCDs. I just observed that the Centos 5.3 liveCD had no problem booting.

Other than on that computer, I've found the Mepis liveCD very robust and easy.

I found the Centos 5.3 liveCD to be a particularly lame and inconvenient environment. I find it annoying that the Centos 5.3 install DVD does not double as liveDVD and the liveCD apparently doesn't double as an installer. Plus I don't like the environment you get from that liveCD.

If it works, the Mepis liveCD is much friendlier (plus it does double as installer).

The Centos 5.3 liveCD was a nice tool to have when I found a computer in which other liveCD's wouldn't boot. But otherwise, I wouldn't want to use it.

Last edited by johnsfine; 10-09-2009 at 01:41 PM.
 
Old 10-09-2009, 03:20 PM   #4
moxieman99
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I'll look at Fedora live disk. Thanks
 
Old 10-10-2009, 11:59 AM   #5
ordinary
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Unless you require excellent stability, I think you'll like Fedora. I suspect your earlier problems with Knoppix were related to new, unsupported hardware. The advantages to Fedora are an outstanding user forum and that it has a lot of "latest and greatest" content. It's bleeding edge nature can be a source of fun or aggravation, depending on what your requirements are.

My file server is CentOS because it is stable has long term support. I also use CentOS on a development system because I require the AdaCore gnat compiler which is incompatible with any recent Fedora's glibc. Otherwise I would use Fedora for development because it is feature rich. My laptop runs Fedora 10, though, and I like it a great deal.

Have fun,
Phil
 
  


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