> 4GB memory on HP DL380

Johan Booysen johan at matrix-data.co.uk
Thu Feb 14 08:44:55 UTC 2008


I need a rather quick answer to this, so will ask the question while
continuing googling:
 
I've just upgraded the memory on an HP/Compaq DL380 G4 server running
RHEL5, from 4GB to 6GB.  But Red Hat only sees 4GB.
 
A quick google tells me that I either need to install the kernel-PAE
package, or the hugemem kernel.  Is that correct?  Yum shows me that
kernel-PAE is available, but not kernel-hugemem.
 
This server runs Oracle and is quite important to the business, so I
can't just "have a go" and hope upgrading the kernel doesn't break
anything.
 
Any advice on this will be appreciated very much.
 
grub.conf:
 
title Red Hat Enterprise Linux Server (2.6.18-53.1.4.el5)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-53.1.4.el5 ro root=/dev/VolGroup00/root
rhgb quiet crashkernel=128M at 16M <mailto:crashkernel=128M at 16M> 
        initrd /initrd-2.6.18-53.1.4.el5.img
title Red Hat Enterprise Linux Server (2.6.18-8.el5)
        root (hd0,0)
        kernel /vmlinuz-2.6.18-8.el5 ro root=/dev/VolGroup00/root rhgb
quiet crashkernel=128M at 16M <mailto:crashkernel=128M at 16M> 
        initrd /initrd-2.6.18-8.el5.img
 
Thanks.



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