From owner-freebsd-hackers Sat Dec 7 04:23:46 1996 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id EAA23828 for hackers-outgoing; Sat, 7 Dec 1996 04:23:46 -0800 (PST) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.8.4/8.8.4) with SMTP id EAA23818 for ; Sat, 7 Dec 1996 04:23:40 -0800 (PST) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id NAA07035; Sat, 7 Dec 1996 13:23:17 +0100 Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id NAA13204; Sat, 7 Dec 1996 13:23:16 +0100 Received: (from j@localhost) by uriah.heep.sax.de (8.8.2/8.6.9) id NAA18402; Sat, 7 Dec 1996 13:16:31 +0100 (MET) From: J Wunsch Message-Id: <199612071216.NAA18402@uriah.heep.sax.de> Subject: Re: But it didn't work. To: freebsd-hackers@freebsd.org (FreeBSD hackers) Date: Sat, 7 Dec 1996 13:16:31 +0100 (MET) Cc: imp@village.org (Warner Losh) Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199612032211.PAA00422@rover.village.org> from Warner Losh at "Dec 3, 96 03:11:10 pm" X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E X-Mailer: ELM [version 2.4ME+ PL17 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk As Warner Losh wrote: > : You are running UFS on the drive, right? > > Yes. Why wouldn't lsof show anything, yet umount think the drive is > still busy? I've once noticed problems of this kind if the UFS in questions has device nodes that are currently open, regardless of whether the pathname on the mounted device or any other UFS has been used to open this descriptor. E.g., if your JAZ disk has a /dev/console on it, and /dev/console is currently open (which it usually is), you can't umount it without also setting MNT_FORCE (aka. ``umount -f''). Needless to say, with DEVFS, you no longer need to have device nodes on your UFS at all. :-) -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)