From owner-freebsd-stable@FreeBSD.ORG Thu Jul 22 13:24:24 2004 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 45BAA16A4CE for ; Thu, 22 Jul 2004 13:24:24 +0000 (GMT) Received: from konvergencia.hu (konvergencia.hu [195.228.254.188]) by mx1.FreeBSD.org (Postfix) with ESMTP id 04DA043D60 for ; Thu, 22 Jul 2004 13:24:24 +0000 (GMT) (envelope-from mkenyeres@konvergencia.hu) Received: from [127.0.0.25] (helo=localhost) by konvergencia.hu with esmtp (Exim 4.10) id 1BndZj-000KZo-00 for freebsd-stable@FreeBSD.org; Thu, 22 Jul 2004 13:25:31 +0000 Received: from konvergencia.hu ([127.0.0.25]) by localhost (kavegep.konvergencia.hu [127.0.0.25]) (amavisd-new, port 10024) with ESMTP id 78159-06 for ; Thu, 22 Jul 2004 15:25:30 +0200 (CEST) Received: from 63.99-182-adsl-pool.axelero.hu ([81.182.99.63] helo=[10.0.0.161]) by konvergencia.hu with asmtp (TLSv1:RC4-MD5:128) (Exim 4.10) id 1BndZi-000KZj-00 for freebsd-stable@FreeBSD.org; Thu, 22 Jul 2004 13:25:30 +0000 From: Marton Kenyeres Organization: KVG Konvergencia Kft. To: freebsd-stable@FreeBSD.org Date: Thu, 22 Jul 2004 15:24:25 +0200 User-Agent: KMail/1.6.1 References: In-Reply-To: MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable Message-Id: <200407221524.27026.mkenyeres@konvergencia.hu> X-Virus-Scanned: by amavisd-new at konvergencia.hu Subject: Re: Degrade, upgrade X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Jul 2004 13:24:24 -0000 On Thursday 22 July 2004 15:06, Kov=E1cs P=E9ter wrote: > Hello guys, Hi! > > I have a system running FreeBSD 5.2.1 and want to degrade it > to FreeBSD 4.10 (because the program I want to use only runs > and supported on that platform) without reinstalling the system. > Is it enough to cvsup to the RELENG_4 branch and recompile > the system? > Should I recompile all the programs that were previously > compiled in the FreeBSD 5 environment? In most cases it's guaranteed to _NOT_ work and render your system unusable= =20 because the UFS2 filesystem (which is the default in the 5.x branch) is not= =20 supported under 4.x. However you can use most software written for FreeBSD= =20 4.x if you install the misc/compat4x port. > > I would also like to know how this works backwards (which is > the common way), so to upgrade from 4 to branch 5. Is there > some kind of tutorial for this? Yes, it's possible, however for most users the easyest and safest way is to= =20 backup valueable data, and do a fresh install. This way you can take=20 advantage of all the features of the new filesystem. If you must do a sourc= e=20 update for some reason, the upgrade process is described in detail in=20 src/UPDATING. > > Thanks, > P. cheers, m. =2D-=20 Marton Kenyeres - mkenyeres@konvergencia.hu KVG Konvergencia Kft.