On Mon, Dec 7, 2009 at 4:35 PM, Lucian @ lastdot.org lucian@lastdot.orgwrote:
On Mon, Dec 7, 2009 at 12:24 PM, Diederick Stoffers d.stoffers@gmail.com wrote:
[root@localhost ~]# uname -a Linux localhost.localdomain 2.6.18-164.6.1.el5xen #1 SMP Tue Nov 3
16:48:13
EST 2009 x86_64 x86_64 x86_64 GNU/Linux
On 7 dec 2009, at 13:12, Rudi Ahlers wrote:
what kernel are you running?
On Mon, Dec 7, 2009 at 2:05 PM, Diederick Stoffers <d.stoffers@gmail.com
wrote:
Hi,
We have a new 24-core Dell PowerEdge R905 server with 128GB's RAM. The 64
bits version of Fedora 12 lists the correct amount of 128GB, CentOS only
finds 32GB (and so does Scientific Linux). I would much prefer to use
CentOS
(most of the software we use is specifically designed for CentOS). Does
anyone know what is causing this/how to fix it?
Many Thanks,
Diederick
From: http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Virtualization-e...
"The Red Hat Enterprise Linux Virtualization kernel does not support more than 32GB of memory for x86_64 systems. If you need to boot the virtualization kernel on systems with more than 32GB of physical memory installed, you must append the kernel command line with mem=32G. This example shows how to enable the proper parameters in the grub.conf file:
title Red Hat Enterprise Linux Server (2.6.18-4.elxen) root (hd0, 0) kernel /xen.gz-2.6.18-4-el5 mem=32G module /vmlinuz -2.6.18-4.el5xen ro root=LABEL=/ module /initrd-2.6.18-4.el5xen.img"