From owner-freebsd-questions Sun Jan 21 16:34:55 2001 Delivered-To: freebsd-questions@freebsd.org Received: from stjohn.stjohn.ac.th (stjohn.stjohn.ac.th [202.21.144.1]) by hub.freebsd.org (Postfix) with ESMTP id 0EE3537B400 for ; Sun, 21 Jan 2001 16:34:36 -0800 (PST) Received: from granite ([203.151.134.100]) by stjohn.stjohn.ac.th (8.9.3+Sun/8.9.3) with SMTP id HAA14459 for ; Mon, 22 Jan 2001 07:31:15 -0700 (GMT) Message-Id: <3.0.6.32.20010122073431.00815e20@stjohn.stjohn.ac.th> X-Sender: mcrogerm@stjohn.stjohn.ac.th X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Mon, 22 Jan 2001 07:34:31 +0700 To: freebsd-questions@freebsd.org From: Roger Merritt Subject: cd9660: device busy Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I hadn't had need to use the cdrom since early December, so I was surprised when I tried to mount a cdrom and got the error message "cd9660: device busy." I had a lot of trouble with the cdrom not being detected under 4-STABLE, so have stuck with 4.1-RELEASE. The cdrom was working fine and I don't know of anything that's changed. The cdrom is used as an NFS filesystem by another server, but is not automatically mounted -- it is currently *not* mounted on the other system. Mountd is running. I have the following line in /etc/fstab: /dev/acd0c /cdrom cd9660 ro,noauto 0 0 From dmesg: acd0: CDROM at ata0-slave using PIO4 I've tried the commands mount /cdrom mount -t cd9660 /dev/acd0c /cdrom mount_cd9660 /dev/acd0c /cdrom All with the same result: device busy. I tried going to /dev and rm acd*, followed by ./MAKEDEV acd* Is there a utility which will identify which processes are using which files/devices? I ran across a posting in Deja News that Sun has a utility called fuser that does this, but it doesn't exist (at least under that name) in FreeBSD. Cand anyone suggest other troubleshooting steps I might take, or any tutorial which discusses possible causes of obscure error messages? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message