[Gllug] How much system memory do I have?

John Edwards john at cornerstonelinux.co.uk
Thu May 7 10:09:54 UTC 2009


On Thu, May 07, 2009 at 07:00:34AM +0100, John Winters wrote:
<snip>
> 2) How much RAM can my OS address?
> 
>    If you're running a 32-bit operating system then you will find that
> the OS is restricted to anywhere between 3 and 3.5 Gigs.  Arguably when
> the OS is reporting how much RAM there is it should perhaps say "4 Gigs
> but I can use only 3" rather than just saying "3 Gigs".
> 
> You don't say what processor the laptop has, but given its age and the
> fact that it has 4G of RAM installed I would expect it to be 64 bit
> capable.  Install the 64 bit version of Ubuntu and you will find you can
> use all your RAM.

Or if you don't want to reinstall, then use the "linux-server" Ubuntu
kernels, which have a feature called PAE to use up to 64GB of RAM.

One possible problem could be that the "linux-server" kernels might
not have all the extra modules you need for the laptop hardware.


-- 
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|    John Edwards   Email: john at cornerstonelinux.co.uk    |
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