4GB installed - RH reports 3.2?!?

[Smith, Albert]

> -----Original Message-----
> From: redhat-list-bounces at redhat.com 
> [mailto:redhat-list-bounces at redhat.com] On Behalf Of Cannon, Andrew
> Sent: Friday, September 23, 2005 2:57 AM
> To: 'General Red Hat Linux discussion list'
> Subject: RE: 4GB installed - RH reports 3.2?!?
> 
> Albert,
> 
> Thanks for your replies.  It seems that the hugemem kernel 
> wasn't installed by HP (even though it should have been).  
> I'm going to install WS4U1 over the top of this installation 
> anyway.  I'll be sure to install the hugemem kernel with this one.
> 
> Thanks
> 
> Andrew
> 
> -----Original Message-----
> From: Smith, Albert [mailto:Albert.Smith at genexservices.com]
> Sent: 21 September 2005 14:47
> To: General Red Hat Linux discussion list
> Subject: RE: 4GB installed - RH reports 3.2?!?
> 
> 
> 
> > -----Original Message-----
> > From: redhat-list-bounces at redhat.com
> > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Smith, Albert
> > Sent: Wednesday, September 21, 2005 9:42 AM
> > To: General Red Hat Linux discussion list
> > Subject: RE: 4GB installed - RH reports 3.2?!?
> > 
> > 
> > 
> >  
> > 
> > > -----Original Message-----
> > > From: redhat-list-bounces at redhat.com 
> > > [mailto:redhat-list-bounces at redhat.com] On Behalf Of 
> Cannon, Andrew
> > > Sent: Wednesday, September 21, 2005 9:17 AM
> > > To: Redhat (E-mail)
> > > Subject: 4GB installed - RH reports 3.2?!?
> > > 
> > > Hi All,
> > > 
> > > Thanks to those of you who responded with answers to my
> > query on the
> > > mouse problem.  I managed to get it sorted by going all the way 
> > > through the first boot process and it "miraculously" worked
> > fine after
> > > booting.  I have to say though, using a GUI with no mouse
> > isn't fun!!!
> > > 
> > > Anyway, now to my problem, we have a HP xw4300 with 4GB memory 
> > > installed.
> > > The system performs a memory check upon boot up (the first boot 
> > > reported a CMOS checksum error).  It does a "click" on 
> every 1MB of 
> > > memory until it passes 3.3GB, then the checks change to
> > every 4MB, up
> > > until 4GB is reached (well, 4096MB).
> > > 
> > > The BIOS reports 4096 (in 4 x 1GB sticks) when I check it.
> > > 
> > > Red Hat (Enterprise linux 3 Update 5 WS) reports only 3290744 
> > > installed memory, both when I use top, free and even in the boot 
> > > messages.
> > > 
> > > Does Red Hat not recognise the full 4GB memory?
> > > 
> > > We are using the 2.4.21-32EL kernel for x86-64 on a P4 650
> > (2Mb cache,
> > > 3.4GHz)
> > > 
> > > Any help would be greatly appreciated.
> > > 
> > > Andy
> > > 
> > > 
> > > 
> > 
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> > 
> > What does /proc/meminfo report?
> > 
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> 
> 
> 
> Andy,
> 
>   I would use the hugemem kernel that should hopefully fix 
> your problem.
> It sounds like with your current kernel PAE is not enabled. 
> 
> Albert Smith
> Sr. Unix Systems Administrator
> HPCSA, RHCT
> Genex Services
> 440 E. Swedesford Rd.
> Wayne, PA 19087
> albert.smith at genexservices.com
> (610) 964-5154
> 
> 
> 
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> 

By default on most configs the default kernel installed will either be
the EL or the SMP EL kernel. It's not difficult to add the additional
kernel. I would just do an up2date kernel-hugemem  and it will pull down
the current hugemem kernel and dependents. This is assuming you are on
the RHN.

Albert Smith
Sr. Unix Systems Administrator
HPCSA, RHCT  
Genex Services
440 E. Swedesford Rd.
Wayne, PA 19087
albert.smith at genexservices.com
(610) 964-5154