From owner-freebsd-questions@FreeBSD.ORG Sat Sep 25 15:44:09 2010 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 2B226106564A for ; Sat, 25 Sep 2010 15:44:09 +0000 (UTC) (envelope-from onemda@gmail.com) Received: from mail-qw0-f54.google.com (mail-qw0-f54.google.com [209.85.216.54]) by mx1.freebsd.org (Postfix) with ESMTP id D948A8FC0A for ; Sat, 25 Sep 2010 15:44:08 +0000 (UTC) Received: by qwd6 with SMTP id 6so2229116qwd.13 for ; Sat, 25 Sep 2010 08:44:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=q0iD8/cLu6s3V9LwoxwHEz6m3/vyd7M7wCnxkpfyciI=; b=sSQ2sH8PzYJBGKUXSpUxY0HQQir+XFNJgMANBC64y9pn77c2j8D3QMoGvOc2iDVbOc YtcsGbUlcZO5yqgY2s6rIpMWb7SpjEh9TnnsXHChGspyDw/I1Jjstv2bW7mvz3Nwp87U u9MW/hatdHoUMpfvlVlhuNBWrZ+wQetW5S7k4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=X9JDX+gP1RBKFzPIn4UtK+zkotrFrBuhEcEyBIT5t32RUKiDQ7INKBuhxmeH4CMjqd X5vSYL8hD+vEokQDIzzqhGh9Q91PiVssm213URVBt1sdkpGo4xiqnOf/5Mk1rw3F2t3d RwzevgKIthYwz3He/4zu3qQ2kjlGrL6fpm+d0= MIME-Version: 1.0 Received: by 10.224.130.148 with SMTP id t20mr3567797qas.278.1285429447944; Sat, 25 Sep 2010 08:44:07 -0700 (PDT) Received: by 10.220.202.11 with HTTP; Sat, 25 Sep 2010 08:44:07 -0700 (PDT) In-Reply-To: References: Date: Sat, 25 Sep 2010 15:44:07 +0000 Message-ID: From: Paul B Mahol To: Jon Otterholm Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-questions@freebsd.org Subject: Re: Change CPU 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: Sat, 25 Sep 2010 15:44:09 -0000 On 9/25/10, Jon Otterholm wrote: > Hi. > > > > I am going to upgrade my CPU on a system that I compiled both world and > kernel on. The current CPU is Core i5-670 and I'm changing to Xeon > X3470. Will I be able to boot my system or has GCC specific flags for i5 > that won't work with X3470? > > > > Can I prepare the system in any way to make it boot using the new CPU? If you never used any flags like CPUTYPE or similar you are pretty safe. But some ports/programs override such stuff, for example disabling runtime CPU detection.....