Bigmem Kernels in RHEL AS 5

[Young, Mike]

Ok, I think I figured this out - for application reasons, the 32-bit version of RHEL AS 5 was installed.  By default, 32-bit Linux doesn't support more than 4GB RAM.  I've heard you can enable more than 4GB of RAM on 32-bit systems.  Can someone point me to a HOWTO for doing that, or give me a quick explanation?

Thanks,
Mike.

 -----Original Message-----
From: 	Young, Mike  
Sent:	Friday, March 23, 2007 7:44 AM
To:	'General Red Hat Linux discussion list'
Subject:	RE: Bigmem Kernels in RHEL AS 5

Hmm... I have 8GB of RAM in the machine, and POST shows 8GB on boot, but the OS sees only 4GB.

 -----Original Message-----
From: 	redhat-list-bounces at redhat.com [mailto:redhat-list-bounces at redhat.com]  On Behalf Of David Miller
Sent:	Friday, March 23, 2007 12:37 AM
To:	General Red Hat Linux discussion list
Subject:	Re: Bigmem Kernels in RHEL AS 5

I believe that since RHEL4 the default installed 2.6.9 kernel will  
handle large amounts of memory just fine. Red Hat puts artificial  
limits on their kernel but even in WS it is like 16GB.

David.

On Mar 22, 2007, at 6:46 PM, Young, Mike wrote:

> Hello,
>
> I don't see a BIGMEM or HUGEMEM kernel on the new RHEL 5 CD's...  
> how are systems with 4GB+ being handled with RHEL5?  Kernel boot  
> parameters?
>
> Thanks,
> Mike.
>
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