From owner-freebsd-fs Fri Mar 15 7:58:32 2002 Delivered-To: freebsd-fs@freebsd.org Received: from snipe.prod.itd.earthlink.net (snipe.mail.pas.earthlink.net [207.217.120.62]) by hub.freebsd.org (Postfix) with ESMTP id 55E4637B402 for ; Fri, 15 Mar 2002 07:58:28 -0800 (PST) Received: from pool0389.cvx22-bradley.dialup.earthlink.net ([209.179.199.134] helo=mindspring.com) by snipe.prod.itd.earthlink.net with esmtp (Exim 3.33 #1) id 16lu5u-0002zE-00; Fri, 15 Mar 2002 07:58:14 -0800 Message-ID: <3C921A04.CFCADA9D@mindspring.com> Date: Fri, 15 Mar 2002 07:57:56 -0800 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Christoph Hellwig Cc: AQUAMAN , freebsd-fs@FreeBSD.ORG Subject: Re: filesystems compatibility References: <20020312185747.98993.qmail@web13305.mail.yahoo.com> <3C8E72A3.6E9CBC6F@mindspring.com> <20020314183219.A28415@caldera.de> <3C9114DA.5A2D0591@mindspring.com> <20020315110059.A32509@caldera.de> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Christoph Hellwig wrote: > > PS: Different versions of FFS have different magic numbers; > > the original number was Kirk's birthday. > > Only very few FFS derivates have different major numbers, infact I only > know of SVR4.2MP SFS and various HP versions. On the other hand > Solaris/Solaris-i386/4.4BSD/OpenStep seem to have the same one and are > _very_ incompatible. 8-). Common mistake. They have opposite word order, so the version number is different. They also have different VTOC and disklabel order, so they're easy to differentiate anyway. > > PPS: I'm more of an FFS maven than an EXT2FS maven; so I would > > be more likely to be able to tell you about FFS interoperability > > between systems. > > Thanks, I have enough of it after implementing SVR4.2MP UFS and SFS > support for Linux.. Heh. I did some work on UFS for SVR4.2MP on SVR4.2MP, and a did everything for a derivative called NXFS (the magic number on that one is _my_ birthday). ;^). -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message