CentOS - Jul 2008 - so many problem CENTOS 5.2 with DELL servers????

?I have been installed?CENTOS 5.2 on several DELL servers and have following
problems (even?latest patches apply):
?
1. DELL 2650 can NOT boot under?CENTOS 5.2 PAE mode
?
2. DELL R900 can NOT boot under?CENTOS 5.2 PAE mode (inifinite boot loop)
?
3. DELL R900 with 128 GB RAM can only see 15 GB RAM under?CENTOS 5.2 Xen mode
?
Anyone know why?? IS?CENTOS 5.2 certify with DELL server?
?
Does?CENTOS 5.1 have similiar problem or NOT?
?
Thanks.?


     
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On Jul 14, 2008, at 3:24 PM, mcclnx mcc wrote:
> Anyone know why?  IS CENTOS 5.2 certify with DELL server?
>
the Red Hat Hardware Catalog is here:

https://hardware.redhat.com/

the PowerEdge 2650 is supported for i386:

https://hardware.redhat.com/show.cgi?id=232318

the R900 is supported under 5.1 for i386 and x86_64:

https://hardware.redhat.com/show.cgi?id=359681

this might explain some of the problems you're experiencing with 5.2  
on the R900.

-steve

--
If this were played upon a stage now, I could condemn it as an  
improbable fiction. - Fabian, Twelfth Night, III,v

On Mon, Jul 14, 2008 at 1:24 PM, mcclnx mcc <mcclnx at yahoo.com.tw>
wrote:
>  I have been installed CENTOS 5.2 on several DELL servers and have
following
> problems (even latest patches apply):
>
>
>
> 1. DELL 2650 can NOT boot under CENTOS 5.2 PAE mode
>
>
Is the 2650 PAE compatible?
Does the system have the latest Dell BIOS on it?
>
> 2. DELL R900 can NOT boot under CENTOS 5.2 PAE mode (inifinite boot loop)
>
>
>
> 3. DELL R900 with 128 GB RAM can only see 15 GB RAM under CENTOS 5.2 Xen
> mode
>
I think that you are wanting to use 64 bit Linux versus 32 bit.

http://www.nabble.com/query-on-physical-memory-map-for-Xen--td16625725.html


>
> Anyone know why?  IS CENTOS 5.2 certify with DELL server?
>
>
Uhm no. I don't think Dell certifies CentOS to work with their OS. You
would need to contact Dell though versus CentOS.
>
> Does CENTOS 5.1 have similiar problem or NOT?
>
Yes. [All caps is a sign of yelling in english... not sure what you
are aiming for.]



-- 
Stephen J Smoogen. -- BSD/GNU/Linux
How far that little candle throws his beams! So shines a good deed
in a naughty world. = Shakespeare. "The Merchant of Venice"

on 7-14-2008 12:24 PM mcclnx mcc spake the following:
>  I have been installed CENTOS 5.2 on several DELL servers and have 
> following problems (even latest patches apply):
> 
>  
> 
> 1. DELL 2650 can NOT boot under CENTOS 5.2 PAE mode
> 
>  
> 
> 2. DELL R900 can NOT boot under CENTOS 5.2 PAE mode (inifinite boot loop)
> 
>  
> 
> 3. DELL R900 with 128 GB RAM can only see 15 GB RAM under CENTOS 5.2 Xen 
> mode
> 
>  
> 
> Anyone know why?  IS CENTOS 5.2 certify with DELL server?
> 
>  
> 
> Does CENTOS 5.1 have similiar problem or NOT?
> 
>  
> 
> Thanks. 
> 
Did you try a 64 bit install?

Do you have to turn on PAE in the bios on those servers? I have HP servers 
that you have to enable PAE or it doesn't work.

And CentOS isn't really "certified" with anything. Free distros
don't usually
pay to be certified. But if it is listed to work on RedHat Enterprise Linux 
5.2 then CentOS should also work.


-- 
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

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mcclnx mcc wrote:
>  I have been installed CENTOS 5.2 on several DELL servers and have
following problems (even latest patches apply):
>  
> 1. DELL 2650 can NOT boot under CENTOS 5.2 PAE mode
Did you install the PAE kernel and are you booting the PAE kernel?
>  
> 2. DELL R900 can NOT boot under CENTOS 5.2 PAE mode (inifinite boot loop)
Same as question 1.
>  
> 3. DELL R900 with 128 GB RAM can only see 15 GB RAM under CENTOS 5.2 Xen
mode
http://www.centos.org/docs/5/html/5.1/Virtualization_Guide/ch-virt-hw-support.html
>  
> Anyone know why?  IS CENTOS 5.2 certify with DELL server?
As others have stated, CentOS does not certify with any places that 
would cost money.  That is how you get it for free.
>  
> Does CENTOS 5.1 have similiar problem or NOT?
I don't think there will be any difference

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On Monday 14 July 2008 15:24:55 mcclnx mcc wrote:
> ?I have been installed?CENTOS 5.2 on several DELL servers and have
> following problems (even?latest patches apply): 
> 1. DELL 2650 can NOT boot under?CENTOS 5.2 PAE mode
> ?
> 2. DELL R900 can NOT boot under?CENTOS 5.2 PAE mode (inifinite boot loop)
> ?
> 3. DELL R900 with 128 GB RAM can only see 15 GB RAM under?CENTOS 5.2 Xen
> mode 
> Anyone know why?? IS?CENTOS 5.2 certify with DELL server?
> ?
> Does?CENTOS 5.1 have similiar problem or NOT?
> ?
> Thanks.?

Not really a Linux problem but Dell h/w. They constantly change specs and seem 
to not have the quality under heavy load. Dell is built on just enough.

We have smoked three of their top of the line servers with actual smoke coming 
out of them. 

For years now we simply do not support Dell h/w in a server environment. Not 
to say they are all bad, but too many issues which are not there with for 
example Supermicro.

So in the long run we've not found it viable to support them at all.

-- 

Bobby