Date: Thu, 26 Jun 2008 07:21:36 -0400 From: Bill Moran <wmoran@potentialtech.com> To: "Sandra Kachelmann" <s.kachelmann@googlemail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Is FreeBSD i386 64bit? Message-ID: <20080626072136.331f5d26.wmoran@potentialtech.com> In-Reply-To: <91b92520806260356id3c9a2bxa50b0814c12ec7dc@mail.gmail.com> References: <91b92520806260356id3c9a2bxa50b0814c12ec7dc@mail.gmail.com>
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On Thu, 26 Jun 2008 12:56:06 +0200 "Sandra Kachelmann" <s.kachelmann@googlemail.com> wrote: > Coming from the Linux world I am pretty new to FreeBSD, please bare with me. > I find the FreeBSD handbook pretty useful and I just managed to update > 7.0-RELEASE to 7-STABLE from source. I have an Intel core4quad CPU and was > wondering if I now have a 64bit FreeBSD. I am a bit confused because from > /usr/src/sys/ I only see the directories amd64, ia64 and sparc64 with the > number 64 in it. The source tree has the code for both the i386 (32-bit) and various 64-bit OS in it. So the source tree can be used to compile the 64-bit version, but it doesn't give you any indication of what version you actually have installed. The output of 'uname -a' will tell you what your currently running system is. If it says i386, then you're running the 32-bit version, if it says amd64, you're running the 64-bit version. Note that Intel chips use amd64, despite the fact that it has AMD in the name. > Another question, is setting CPUTYPE advised or discouraged? I am aware > about problems if you mix binaries built with different CPU flags; not a > problem for me because coming from Gentoo I am used to build everything > myself. I've never had any trouble setting CPUTYPE, unless I set it to an incorrect value.
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