From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([69.77.167.62] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1KKKBa-0004dM-L1 for garchives@archives.gentoo.org; Sat, 19 Jul 2008 21:41:50 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id F4010E0388; Sat, 19 Jul 2008 21:41:48 +0000 (UTC) Received: from mail.muc.de (colin.muc.de [193.149.48.1]) by pigeon.gentoo.org (Postfix) with ESMTP id 7477BE0388 for ; Sat, 19 Jul 2008 21:41:48 +0000 (UTC) Received: (qmail 17531 invoked by uid 3782); 19 Jul 2008 21:41:47 -0000 Received: from acm.muc.de (pD9E529A2.dip.t-dialin.net [217.229.41.162]) by colin2.muc.de (tmda-ofmipd) with ESMTP; Sat, 19 Jul 2008 23:41:46 +0200 Received: (qmail 921 invoked by uid 1000); 19 Jul 2008 21:41:15 -0000 Date: Sat, 19 Jul 2008 21:41:15 +0000 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] mount: "special device /dev/hdc does not exist". What does this mean? Message-ID: <20080719214114.GA896@muc.de> References: <20080719185157.GA2376@muc.de> <48823C4D.1060108@googlemail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <48823C4D.1060108@googlemail.com> User-Agent: Mutt/1.5.9i X-Delivery-Agent: TMDA/1.1.5 (Fettercairn) From: Alan Mackenzie X-Primary-Address: acm@muc.de X-Archives-Salt: 40c7ba93-8fa0-4796-9691-276e4380a401 X-Archives-Hash: 6c2dd726f81228bb78da6312554634f5 Hi, Daniel On Sat, Jul 19, 2008 at 09:11:09PM +0200, Daniel Pielmeier wrote: > Alan Mackenzie schrieb: > >Hi, Gentoo? > >I've a newly installed system, now working with my own special > >optimiesed keyboard layout. :-) > >However, I can't access my DVD drives. I know at least one of them > >works, because I installed Gentoo from it. > >When I do > > mount -tiso9660 /dev/hdc /cdrom > >, it comes back with "special device /dev/hdc does not exist". And yes, > >there was a CD in the drive, and /cdrom exists. > Do you mean > mount -t iso9660 /dev/hdc /cdrom Maybe. Is that different? > >What does "special device" mean here? Does it mean the physcial > >hardware, the controller chip, the directory entry /dev/hdc, the driver > >in the kernel, or what? What is "special" about my DVD writer? > It means the directory entry /dev/hdc. OK. > >Well, to answer some of my questions, I was missing a /dev/hdc, so I > >made one with > ># mknod /dev/hdc b 22 0 > >. This didn't help one iota. I had a look at dmesg, but there was no > >mention of hdc in it. (It did mention hdg, hdh, where my main hard > >drives are (don't ask!)). > Can't resist what is on hd{a-f} Nothing on hd[abef], a DVD writer on hdc and a DVD reader on hdd. My PC was built in 2001, and the 2 "onboard" IDE ports are "ordinary" IDE, whereas the two IDE ports "stuck on the side" do UDMA66. > >My kernel is an up to date linux-2.6.25-gentoo-r6. I _think_ it's got > >all the needed options set in the configuration. Can anybody suggest > >how to get my system to recognise my DVD drives? > >Thanks in advance! > What kind of DVD writer do you have maybe it is sata or scsi, and it > wiil appear under /dev/srX or /dev/sgX. Or if you use the new libata > library in the kernel even IDE devices are under /dev/srX or /dev/sgX. No, the box is no longer young, and contains no SATA or SCSI bits at all. I'm just going away to see if I've got any /dev/s[gr]X on the box. .... No, I've got no /dev/s[gr]X at all. Could it be that the kernel has looked at hd[ab], found nothing there, and therefore decided "it's not worth the bother even looking at hd[cd]"? -- Alan Mackenzie (Nuremberg, Germany).