upgrading to an SMP kernel

[Rick Stevens]

On Tue, 2005-10-18 at 14:54 -0400, Mike Pepe wrote:
> 
> Gordon Price wrote:
> > Kind Folks,
> > 
> >    I am running into an issue that has me really bugged. I have one 
> > machine that has the *2.6.11-1.27FC3smp* kernel and another with the 
> > *2.6.11-1.27FC3* non-smp kernel. I need to use the smp version for a 
> > project that only works with this version of FC3 that uses a USB 2.0 
> > video device I designed.  I have looked everywhere I know to figure out 
> > how to get the smp kernel on the non-smp  machine, and I can not seem to 
> > back track the steps correctly.
> > 
> >     I have tried yum every which way but loose, and can not get an smp 
> > kernel period, to install or upgrade on the non-smp machine. Yum wants 
> > to upgrade me to 2.6.12, and I don't want to do that.
> > 
> >    On the machine that does not have the smp kernel, I tried copying all 
> > the smp files (4) that were in /boot on the smp machine to the /boot 
> > directory on the non-smp machine. I then added an entry in 
> > /etc/grub.conf for the smp kernel boot. This does not work at all. This 
> > issue makes me worry that Linux hard drives may be more difficult to 
> > move from machine to machine in a pre-configured format than I had 
> > wished????

You need the SMP files from "/boot" (at least the vmlinuz and initrd
files) AND the entire module directory at
"/lib/modules/<kernelversion>-smp" directory on the non-SMP machine.
You also need to edit the /boot/grub/grub.conf file to include the SMP
kernel.

Of course, if you have the SMP binary RPM, copy that to the non-SMP
machine and force an install via "rpm -ivh kernel-whatever-smp.rpm".
That's the cleanest way to do it.
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- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-          When all else fails, try reading the instructions.        -
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