On Wed, 20 Sep 2006, Michael Mansour wrote:

> Hi,
> 
> I've recently rebuilt some of my DL360's from earlier releases to SL4.3
> 
> With the HP Proliant DL360's (generation 1) single CPU units, they refuse to
> boot the latest 2.6.9-42.0.2.EL kernel, but boot fine from the earlier
> 2.6.9-34.EL kernel.
> 
> There's no kernel panic from the boot screen, just hangs on boot and the
> machine has to be power cycled.
> 
> On exactly the same model servers but with an extra CPU, booting off the
> latest SMP kernel boots fine.
> 
> Any ideas how I can troubel-shoot this one?
> 
> I've yet to disbale the "quiet" boot mode to see exactly where it hangs. I've
> also yet to try to boot an SMP kernel on a UP server to see if it would
> actually work.

If hyperthreading is turned on try turning it off.

Also could try

   linux noapci

-connie

> 
> Thanks.
> 
> Michael.
>