On Thursday 07 December 2006 21:07, Mick wrote: > It seems to me now that I have a udevd problem here. I used to have > a /mnt/cdrw mountpoint and I also had a cdrw group. I changed this > to /mnt/cdrom (because I figured this laptop has just a simple DVD-ROM and > can't write) and I then removed cdrw from the /etc/group file (I didn't use > the command groupdel). At this moment in time there's still a cdrom entry > in /etc/group: > > # cat /etc/group | grep cdr* > cdrom:x:19:michael,haldaemon > > There's a cdrom in devices: > > # ls -la /dev/cd* > lrwxrwxrwx 1 root root 3 Dec 7 20:20 /dev/cdrom -> hdc > lrwxrwxrwx 1 root root 3 Dec 7 20:20 /dev/cdrom1 -> hdc > > and there's a cdrom under /mnt: > > # ls -la /mnt | grep cdr* > drwx------ 2 root cdrom 72 Oct 27 2004 cdrom > > and this is what /etc/fstab now shows: > > # cat /etc/fstab | grep cdr* > /dev/cdrom /mnt/cdrom auto noauto,ro,user,exec 0 0 > > As soon as I run udevstart (or at boot) I get this error about a dozen > times: > > Dec 7 20:45:29 lappy udevd[2187]: lookup_group: specified group 'cdrw' > unknown > > I unmerged/remerged udev after I deleted /etc/udev*. What is causing this > error (where is udev picking up the previous cdrw device/group?) and how > can I fix it. > > Thanks for all your help so far. :)
Some more tests: I groupadded cdrw to make sure that I get no more complaints from udev. Then I tried mounting a data DVD but all I get is: $ mount /mnt/cdrom mount: No medium found I have no problem mount CDs and reading the fs on them, or playing movie DVDs using mplayer. For some reason the problem only seems to exist with mounting data DVDs. Can you see something wrong with the above set up, permissions, etc.? -- Regards, Mick
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