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Re: [Xen-devel] X86_64 and 4GB RAM using Flat Memory Model?

  • To: John Hannfield <hal9020@xxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Sun, 29 Apr 2007 09:43:07 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Sun, 29 Apr 2007 01:40:00 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AceKOmiKpzLsYPYtEdufnAAWy6hiGQ==
  • Thread-topic: [Xen-devel] X86_64 and 4GB RAM using Flat Memory Model?

On 28/4/07 16:41, "John Hannfield" <hal9020@xxxxxxxxx> wrote:

>  Here it looks like GRUB is claiming you have 4MB of RAM, which obviously
>> isn't right.
> You mean this bit about 3072K ?

Yes, and the 'Address Range Descriptors' said the same thing. However, I
think the problem is that you ran grub from the command line. If you did,
displaymem just lies to you (making it completely pointless!). To get the
right info you have to break to the command line at the grub boot menu (by
pressing 'c') and type the command there. And then write down the output
since you won't be able to cut-and-paste. :-)

> I'll try updating grub. I am using debian grub 0.9.7-23   but there is
> a more recent
> version available.

Worth a shot...

 -- Keir

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