From owner-freebsd-questions Sun Oct 20 11:11:51 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id LAA05318 for questions-outgoing; Sun, 20 Oct 1996 11:11:51 -0700 (PDT) Received: from ghost.mep.ruhr-uni-bochum.de (ghost.mep.ruhr-uni-bochum.de [134.147.6.16]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id LAA05249 for ; Sun, 20 Oct 1996 11:11:08 -0700 (PDT) Received: (from roberte@localhost) by ghost.mep.ruhr-uni-bochum.de (8.7.5/8.7.3) id UAA07671; Sun, 20 Oct 1996 20:10:14 +0200 (MET DST) From: Robert Eckardt Message-Id: <199610201810.UAA07671@ghost.mep.ruhr-uni-bochum.de> Subject: Re: Making a DOS Partition writeable In-Reply-To: <199610201558.RAA13239@freebie.lemis.de> from Greg Lehey at "20. Oct. 96 17:57:43" To: grog@lemis.de (Greg Lehey) Date: Sun, 20 Oct 1996 20:10:13 +0200 (MET DST) Cc: roberte@mep.ruhr-uni-bochum.de, questions@FreeBSD.org X-Mailer: ELM [version 2.4ME+ PL25 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk > Robert Eckardt writes: > >> I have a 30MB Primary DOS partition on the same HD with FreeBSD. > >> Unfortunately, it is Read-Only. Is it possible to mount a DOS partition > >> that id Read-Write capable? Why is the primary DOS partition Read-Only? > > > > Look into /etc/fstab > > You will find a line like > > /dev/wd0s1 /c msdos ro 0 0 > > This makes it read-only: ^^ > > > > Just change it to > > /dev/wd0s1 /c msdos rw 0 0 > > There's a good reason that DOS file systems get mounted read-only. > The file system code *was* buggy, and a write to an MS-DOS file system > could cause file system corruption. I don't know if it's still the > case--maybe somebody else can comment--but you should know the > potential risks of writing to DOS file systems. Greg, thank you -- that is an important information. I never experienced problems with the DOS-FS since 2.0 (even using from time to time a vnode'd swap space on a file in the DOS partition. :-) I think the problem indeed persists with FIPSed partitions (slices, to be correct). (The mail did not "sound" like FIPS.) Please, anyone correct me, but mounting a DOS-FS could -- under certain circumstances -- corrupt the BSD-FS !?!? Robert -- Robert Eckardt \\ FreeBSD -- solutions for a large universe.(tm) RobertE@MEP.Ruhr-Uni-Bochum.de \\ What do you want to boot tomorrow ?(tm) http://WWW.MEP.Ruhr-Uni-Bochum.de/~roberte For PGP-key finger roberte@gluon.MEP.Ruhr-Uni-Bochum.de