[CentOS] CentOS 5.4 x86_64 only detects 32GB RAM while Fedora x86_64 correctly lists 128GB

Lucian @ lastdot.org lucian at lastdot.org
Mon Dec 7 21:35:36 UTC 2009


On Mon, Dec 7, 2009 at 12:24 PM, Diederick Stoffers
<d.stoffers at gmail.com> wrote:
> [root at 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 at 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
>
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> --
> Kind Regards
> Rudi Ahlers
> CEO, SoftDux Hosting
> Web: http://www.SoftDux.com
> Office: 087 805 9573
> Cell: 082 554 7532
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Try to run xentop (xm top) and see if it displays the correct ammount of memory.


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