On Tue 27 January 2004 08:06, Lourens Veen wrote: > > Then there is autofs > (http://freshmeat.net/projects/autofs/?topic_id=142, can't find a > real homepage) and KDE uses fam > (http://oss.sgi.com/projects/fam/), however I don't think fam > actually mounts devices by itself, it just watches files. I use > (parts of) KDE myself and fam is almost always running; it's > never given me any problems with writing CDs.
It turns out that there is a daemon similar to magicdev, which is used with KDE: autorun (http://sourceforge.net/projects/autorun/). From the description: "autorun automagically recognizes all available CDROMs in the system, mounts them upon insertion of a media and executes a possible autorun executable on the CD. The user can remove the media; autorun will call unmount after that." I did a quick download and looked through the source, and it seems that the binary will be called autorun. I also did a search through the archives and found a reference to supermount (http://supermount-ng.sourceforge.net/). There is also amd, but that doesn't seem to be very widely used, and certainly not installed by default. If someone installed that by hand, they can probably figure out how to fix it. So we have the following table of possible automounters interfering with cdrecord on Linux: Name Type Process name magicdev daemon magicdev? autorun daemon autorun autofs module + daemon automount supermount module N/A Detecting automounters magicdev and autorun can probably be detected by ps, supermount (or at least supermount-ng) has a /proc/fs/supermount directory. If you are running autofs, you likely have a file called /etc/auto.global, and there is the automount process. Preventing automounters from interfering Ideally, an automounter would detect writing in progress and stay away from the drive while the CD is being written. I don't think any of the abovementioned automounters has such a feature. As an alternative, automounting could be disabled for the writer. autofs is configured through a map file (see the man page) and supermount is configured through /etc/fstab (see the readme). I don't know about autorun and magicdev. As a last resort, the daemon-based automounters could be disabled completely by killing the process and/or uninstalling. The in-kernel ones would have to be disabled through their configuration files, by unloading the module or by recompiling the kernel. Some other bits of information - GNOME uses magicdev - KDE uses autorun, at least on Red Hat - Mandrake includes supermount, but outside of Mandrake it's probably rather rare More info, especially on configuring magicdev and autorun, is still very welcome! Lourens -- GPG public key: http://home.student.utwente.nl/l.e.veen/lourens.key
