From owner-freebsd-stable@FreeBSD.ORG Mon Nov 27 06:33:50 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 119EC16A407; Mon, 27 Nov 2006 06:33:50 +0000 (UTC) (envelope-from rink@rink.nu) Received: from mx0.rink.nu (thunderstone.rink.nu [80.112.228.34]) by mx1.FreeBSD.org (Postfix) with ESMTP id 46D4443D68; Mon, 27 Nov 2006 06:32:44 +0000 (GMT) (envelope-from rink@rink.nu) Received: from localhost (localhost [127.0.0.1]) by mx0.rink.nu (Postfix) with ESMTP id DFDE917041; Mon, 27 Nov 2006 07:34:20 +0100 (CET) X-Virus-Scanned: amavisd-new at rink.nu Received: from mx0.rink.nu ([127.0.0.1]) by localhost (thunderstone.rink.nu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id h9JE2TH2A3GC; Mon, 27 Nov 2006 07:34:10 +0100 (CET) Received: by mx0.rink.nu (Postfix, from userid 1000) id 0BB571701F; Mon, 27 Nov 2006 07:34:10 +0100 (CET) Date: Mon, 27 Nov 2006 07:34:09 +0100 From: Rink Springer To: Richard Coleman Message-ID: <20061127063409.GA38831@rink.nu> References: <456A5A22.9070408@criticalmagic.com> MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="Q68bSM7Ycu6FN28Q" Content-Disposition: inline In-Reply-To: <456A5A22.9070408@criticalmagic.com> User-Agent: Mutt/1.5.13 (2006-08-11) Cc: trhodes@FreeBSD.org, freebsd-stable@freebsd.org Subject: Re: Large msdosfs disk will not mount on RELENG_6 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Nov 2006 06:33:50 -0000 --Q68bSM7Ycu6FN28Q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Richard, On Sun, Nov 26, 2006 at 10:23:14PM -0500, Richard Coleman wrote: > I just bought a large external hard drive for home backups (500g Western= =20 > Digital My Book). When I plug it in to my machine (RELENG_6 from about a= =20 > week ago), the system sees the device just fine: >=20 > Nov 26 22:03:21 neptune kernel: umass0: Western Digital External HDD, rev= =20 > 2.00/1.06, addr 2 > Nov 26 22:03:21 neptune kernel: uhid1: Western Digital External HDD, rev= =20 > 2.00/1.06, addr 2, iclass 8/6 > Nov 26 22:03:21 neptune kernel: da0 at umass-sim0 bus 0 target 0 lun 0 > Nov 26 22:03:21 neptune kernel: da0: Fixed Dire= ct=20 > Access SCSI-4 device > Nov 26 22:03:21 neptune kernel: da0: 40.000MB/s transfers > Nov 26 22:03:21 neptune kernel: da0: 476940MB (976773168 512 byte sectors= :=20 > 255H 63S/T 60801C) >=20 >=20 > But when I try to mount the drive (mount -t msdos /dev/da0 /mnt), the=20 > system gives the following error: >=20 > Nov 26 22:06:41 neptune kernel: mountmsdosfs(): disk too big, sorry >=20 > I was surprised to see a file system limitation on FreeBSD that Windows= =20 > does not have. I will probably reformat the system to ufs2, but thought = I=20 > would mention this error message. I'm sure these drives will become=20 > increasingly common. Looking at /sys/fs/msdosfs/msdosfs_vfsops.c seems to hint the existance of options MSDOSFS_LARGE; this avoids the error message and will let you mount the disk. Perhaps it's time for an update of msdosfs(5) ? (I've CC-ed Tom Rhodes for this). Regards, --=20 Rink P.W. Springer - http://rink.nu "It's you isn't it? THE BASTARD OPERATOR FROM HELL!" 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