On Mon, Dec 7, 2009 at 4:35 PM, Lucian @ lastdot.org <lucian@xxxxxxxxxxx> wrote:
On Mon, Dec 7, 2009 at 12:24 PM, Diederick Stoffers
<d.stoffers@xxxxxxxxx> 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@xxxxxxxxx>
> 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:
"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"
--
Jake Paulus
JakePaulus@xxxxxxxxx
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