From owner-freebsd-questions@FreeBSD.ORG Thu Sep 27 05:36:02 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DF8CD16A537 for ; Thu, 27 Sep 2007 05:36:02 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from smtp.infracaninophile.co.uk (smtp6.infracaninophile.co.uk [IPv6:2001:8b0:151:1::1]) by mx1.freebsd.org (Postfix) with ESMTP id 4BAB613C457 for ; Thu, 27 Sep 2007 05:36:02 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from happy-idiot-talk.infracaninophile.co.uk (localhost [IPv6:::1]) by smtp.infracaninophile.co.uk (8.14.1/8.14.1) with ESMTP id l8R5ZrDS016204; Thu, 27 Sep 2007 06:35:55 +0100 (BST) (envelope-from m.seaman@infracaninophile.co.uk) Message-ID: <46FB4139.8020104@infracaninophile.co.uk> Date: Thu, 27 Sep 2007 06:35:53 +0100 From: Matthew Seaman Organization: Infracaninophile User-Agent: Thunderbird 2.0.0.6 (X11/20070803) MIME-Version: 1.0 To: Erich Dollansky References: <46FB2A26.8040507@pacific.net.sg> <74CB72FB-0B36-4945-B121-E61E07BAA4F5@CS.UCLA.EDU> <26F3B5E1A6FC015BDA8980FB@paul-schmehls-powerbook59.local> <46FB32B3.10800@pacific.net.sg> In-Reply-To: <46FB32B3.10800@pacific.net.sg> X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (smtp.infracaninophile.co.uk [IPv6:::1]); Thu, 27 Sep 2007 06:35:56 +0100 (BST) X-Virus-Scanned: ClamAV 0.91.2/4411/Wed Sep 26 22:43:35 2007 on happy-idiot-talk.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-2.9 required=5.0 tests=AWL,BAYES_00,NO_RELAYS autolearn=ham version=3.2.3 X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on happy-idiot-talk.infracaninophile.co.uk Cc: Paul Schmehl , freebsd-questions@freebsd.org Subject: Re: Dual Opterons don't see all memory X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Sep 2007 05:36:03 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Erich Dollansky wrote: > Paul Schmehl wrote: >> --On September 26, 2007 9:06:57 PM -0700 Eric Osterweil >> wrote: >> >>> On Sep 26, 2007, at 8:57 PM, Erich Dollansky wrote: >>> >>>> Eric Osterweil wrote: >>>> >>>>> make use of it's 6GB of memory, and FreeBSD can only see about 4GB >>>>> of it. >>>>> Can anyone help me figure out how to make use of the missing GB? >>>>> FreeBSD 6.2-RELEASE #0: Fri Jan 12 11:05:30 UTC 2007 >>>> >>>> this looks like a 32 bit binary to me. >>>> >>>> You either need a 64 bit binary or you need to enable PAE. >>>> >>>> Just build a custom kernel for 64 bits. >>>> >>> >>> Ahh... To do this, do I just specify the CPUTYPE in the /etc/make.conf >>> as: >>> CPUTYPE=amd64 >>> ? >>> >> No. Add options SMP to GENERIC or use the SMP conf file that's >> already there (and includes GENERIC). Then recompile the kernel per >> the handbook. >> > he still has to set the CPU type also in this config file to amd64. If the OP has installed FreeBSD i386 then changing the CPU type in /etc/make.conf won't magically get him FreeBSD amd64 --- it will just get him FreeBSD i386 optimized for AMD processors running in 32bit mode. As far as I know, there is no simple way to start with a 32-bit system and the FreeBSD sources and recompile and reinstall everything into a 64-bit system. (Although the opposite direction is apparently possible on 7-CURRENT, but it's a guru-only level of difficulty.) The best and most effective answer here is to start by downloading an amd64 installation CD and redo the whole thing from scratch. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFG+0E58Mjk52CukIwRCETCAKCMup1KJEH3jZNewCNG0Faz2IqiLACdGvpc ObU/d7KOx+4qvJ3IY/QcsTY= =1mOs -----END PGP SIGNATURE-----