From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267578AbUBSXqw (ORCPT ); Thu, 19 Feb 2004 18:46:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267585AbUBSXqw (ORCPT ); Thu, 19 Feb 2004 18:46:52 -0500 Received: from inova102.correio.tnext.com.br ([200.222.67.102]:6298 "HELO trinity-auth.correio.tnext.com.br") by vger.kernel.org with SMTP id S267578AbUBSXqp convert rfc822-to-8bit (ORCPT ); Thu, 19 Feb 2004 18:46:45 -0500 X-qfilter-stat: ok X-Analyze: Velop Mail Shield v0.0.4 Date: Thu, 19 Feb 2004 20:46:42 -0300 (BRT) From: =?ISO-8859-1?Q?Fr=E9d=E9ric_L=2E_W=2E_Meunier?= <1@pervalidus.net> To: Greg KH cc: linux-kernel@vger.kernel.org, linux-hotplug-devel@lists.sourceforge.net Subject: Re: HOWTO use udev to manage /dev In-Reply-To: <20040219230749.GA15848@kroah.com> Message-ID: References: <20040219185932.GA10527@kroah.com> <20040219191636.GC10527@kroah.com> <20040219230749.GA15848@kroah.com> X-Archive: encrypt MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 19 Feb 2004, Greg KH wrote: > On Thu, Feb 19, 2004 at 07:22:30PM -0300, Frédéric L. W. Meunier wrote: > > On Thu, 19 Feb 2004, Greg KH wrote: > > > > > - modify the rc.sysinit script to call the start_udev script as one of > > > the first things that it does, but after /proc and /sys are mounted. > > > I did this with the latest Fedora startup scripts with the patch at > > > the end of this file. > > > > > > - make sure the /etc/udev/udev.conf file lists the udev_root as /dev. > > > It should contain the following line in order to work properly. > > > udev_root="/dev/" > > > > > > - reboot into a 2.6 kernel and watch udev create all of the initial > > > device nodes in /dev > > > > > > > > > If anyone has any problems with this, please let me, and the > > > linux-hotplug-devel@lists.sourceforge.net mailing list know. > > > > Unless I'm missing something, it doesn't seem to work if you > > don't have /dev/null before it gets mounted. > > Did you build udev using glibc or klibc? I used klibc and it worked > just fine, as udev and udevd does not need /dev/null to work, unlike > programs built against glibc. I used your instructions, so klibc. # ldd /sbin/udev* /sbin/udev: not a dynamic executable /sbin/udevd: not a dynamic executable /sbin/udevinfo: not a dynamic executable /sbin/udevsend: not a dynamic executable /sbin/udevtest: not a dynamic executable It doesn't complain if I mount in /udev after I boot with devfs, probably because it can find /dev/null etc. But I want to boot with devfs=nomount and use it in /dev. I changed /etc/rc.d/rc.S to: [ -e /dev/.devfsd -a -x /sbin/devfsd ] && devfsd /dev mount -vn -t proc proc /proc # Needed for LABEL= in /etc/fstab mount -vn -t sysfs sysfs /sys [ ! -e /dev/.devfsd -a -d /sys/block ] && /etc/rc.d/start_udev but it shouldn't make any difference. It's just to not use both at the same time or try to run the script in 2.4. -- http://www.pervalidus.net/contact.html