Re: [Mactel-linux-users] mac pros and more that 2 gigs of ram

[Brent H. <br...@lu...>]

Hey Erik, thanks for the response. This machine was installed with  
the 64 bit version of RHELWS4 and the other machine that I took  
another test drive out of is also 64 bit. I have tried a number of  
ram configs, and while nothing seems to work in RHEL WS4 ( currently  
installing WS5), I tried ubuntu, and while it sees more than 2 gigs,  
it will only see more if they are all the same size dimms.( For  
example 4 512s and 2 1gigs will only show as 2Gigs. but 6 1 gigs will  
show as 6 gigs no problem).
Thanks,
Brent
_________________________________________________
Brent Hensarling
Luma Pictures
310-888-8738
luma-pictures.com
_________________________________________________


On Jul 15, 2007, at Sun 10:00|Jul15, Erik Osheim wrote:

> I don't use RHEL much, but I do know that you have to configure your
> kernel to support more than 2GB of RAM if your kernel is 32bit. If
> you're using the stock RHEL kernel, then that is probably the problem.
>
> You should check for something like 'CONFIG_HIGHMEM4G' in your kernel
> config (which might be available at /proc/config.gz), and make sure it
> is set to 'y'.
>
> -- Erik
>
> On Sun, Jul 15, 2007 at 09:45:57AM -0700, Brent Hensarling wrote:
>> Hey all, I have a Mac pro running RHEL ws4, and I noticed that it
>> only sees 2 gigs of ram.  The machine has 4gigs, and I have tried all
>> sorts of memory configs, and have also tried putting a drive from
>> another machine ( a dell that has doesn't have an issue) in it, and
>> it gets the same thing, 2gigs. Anyone with a mac pro have this issue?
>> I think I am going to try a different distro, but I have a feeling
>> its not that. Anyone with a mac pro  with more than 2 gigs seeing it
>> correctly?
>>
>> thanks,
>> brent