On Sun, Feb 03, 2013 at 09:56:12AM -0500, Stephen P. Molnar wrote: > Let me start with a disclaimer - I am not a hardware person! > > I am using Oracle VirtualBox (v 4.2.6 r82870) as a testbed for Wheezy > Testing before upgrading my production linux computer. The software is > installed on my 64 bit Dell Inspiron laptop with 8 GB of RAM running MS > Win > > 7 Professional as the primary OS. > > With a couple of exceptions that I attribute to a less than complete > understanding of the VirtualBox environment, Wheezy is performing well. > > It was with a fair amount of surprise that I discovered, entirely by > chance, that according to KInfoCenter that the system is using only 4.47 > GB of total physical memory!!! > > Googling 'Debian Wheezy 64 bit memory limitation' only turn up references > to Squeezy and the Debian Handbook doesn't seem to address the issue. > > I would greatly appreciate being pointed to any sources of information > about this issue.
Just a quick check, have you told VirtualBox that you'd like the guest to be 64-bit? When creating a VM, you typically tell VirtualBox what kind of OS will be installed. For Debian, there will be TWO entries: "Debian" and "Debian (64 bit)". The first will HIDE your CPU's 64-bit capabilities from the Guest OS (Wheezy).
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