To get above 960MB (I think that is the amount) you have to have your
kernel compiled to support 4GB.  So change the memory size and recompile
your kernel and you will get all your ram.  Redhat may have a bigmem
kernel so if you would rather use a prepackaged kernel look for that or
possibly the smp kernel which I would expect to have the big memory
setting turned on.

Eric

On Wed, 8 Oct 2003, Simper, Brian D wrote:

>
> Is there a theoretical or functional maximum memory you can put in a
> Linux machine?  I have a server with 2GB installed but the free command
> stubbornly says:
>
> # free
>              total       used       free     shared    buffers
> cached
> Mem:        902768     672416     230352          0      45820
> 193564
> -/+ buffers/cache:     433032     469736
> Swap:       522216      25124     497092
>
> This is Red Hat Linux 9 machine with a stock kernel.  Am I missing some
> crucial point?  Has anyone else dealt with a lower than expected
> reported memory?
>
> Thanks,
>
> Brian
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