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Re: linux does not see my RAM

On Thu, Oct 27, 2005 at 06:47:07PM -0400, Tamas K Papp wrote:
> Hi,
> I have recently upgraded the ram in my G4 AlBook (PowerBook5,4).  I
> had two 256 Mb modules there, and replaced one of them by a 1 GB one.

You ned a kernel with HIGHMEM enabled. the debian kernels have it, but i guess
you are running some random self-compiled kernel, so you are the one to blame :)

> I tried swapping the modules, it doesn't make any difference.  I tried
> kernels 2.6.12-rc2 and (I compiled both myself).  I tried
> adding append="mem=1280M" to yaboot.conf (and of course did ybin -v
> after that), but didn't change anything.
> dmesg's first line says:
> Total memory = 768MB; using 2048kB for hash table (at c0400000)

Sure, without HIGHMEM, 768MB is the max memory available.


Sven Luther

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