[BlueOnyx:07626] Re: How do I enable the extra 4gb of memory I have......

[Darrell D. Mobley]

> -----Original Message-----
> From: blueonyx-bounces at mail.blueonyx.it [mailto:blueonyx-
> bounces at mail.blueonyx.it] On Behalf Of Support
> Sent: Tuesday, July 05, 2011 10:03 PM
> To: 'BlueOnyx General Mailing List'
> Subject: [BlueOnyx:07621] How do I enable the extra 4gb of memory I
> have......
> 
> I have installed the PAE kernel with;
> 
> yum install kernel-PAE
> 
> ... and then I edited /boot/grub/grub.conf and set;
> 
> default=0
> timeout=5
> splashimage=(hd0,0)/grub/splash.xpm.gz
> hiddenmenu
> title CentOS (2.6.18-238.12.1.el5PAE)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.18-238.12.1.el5PAE ro
> root=/dev/VolGroup00/root
>         initrd /initrd-2.6.18-238.12.1.el5PAE.img
> title CentOS (2.6.18-238.12.1.el5)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.18-238.12.1.el5 ro root=/dev/VolGroup00/root
>         initrd /initrd-2.6.18-238.12.1.el5.img
> title CentOS (2.6.18-238.9.1.el5)
>         root (hd0,0)
>         kernel /vmlinuz-2.6.18-238.9.1.el5 ro root=/dev/VolGroup00/root
>         initrd /initrd-2.6.18-238.9.1.el5.img
> 
> But I see;
> 
> Kernel Version	2.6.18-238.12.1.el5PAE (SMP)
> 
> In Hardware Information and in 'free' I see;
> 
>              total       used       free     shared    buffers     cached
> Mem:       4086620     288768    3797852          0      18996     152596
> -/+ buffers/cache:     117176    3969444
> Swap:      4194296          0    4194296
> 
> ... so I assume that I have only 4GB memory used.
> 
> Not sure what to do next, does anyone have any suggestions?
> 
> Oh and the hardware: DL360G4 with 8GB memory and dual 3.4 processors.

Did you reboot after making the change?  You have to reboot to get the new
kernel in operation.  Yum install only gets it onto your system.  

You should also uninistall the non-PAE kernels so your system won't try to
install non-PAE kernels during normal system updates as well.

yum remove 2.6.18-238.12.1.el5
yum remove 2.6.18-238.9.1.el5

What version of the hardware BIOS firmware are you using also, make sure you
are using? You should update to the latest firmware.