How to handle dynamic device files for cd and dvd?

[goranbr]

Most multimedia programs wants to access your cd or dvd by accessing normal device files like:
/dev/dvd, /dev/dvdr, /dev/cd, /dev/cdr.

But on my system these files do not exist. They are called
/dev/dvd3, dev/dvdr3, /dev/cd3, /dev/cdr3

So the program cannot access the cd or dvd.

Ok, you can always create symlinks to solve this as a work-around, but they are removed on reboot.
So how are you meant to solve this permanently or at least more elegantly?

Do I have to creat a cron script to do this on every boot-up?

Any tips welcomed!

[Rog131]

Re: How to handle dynamic device files for cd and dvd?

Yes, sometimes the installation seems to use a dice when it is making the udev rules.
There is a readme file: /etc/udev/rules.d/README.

Earlier/more > Topic: Kaffeine "quirkiness" in karmic

[goranbr]

Re: How to handle dynamic device files for cd and dvd?

Thanks a lot guys, you rock!!

This worked:

# cd /etc/udev/rules.d
# vi 70-persistent-cd.rules

This is what kubuntu generates (and I won't touch):

# DVD_RW_DRU-190S (pci-0000:00:1f.5-scsi-0:0:0:0)
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.5-scsi-0:0:0:0", SYMLINK+="cdrom3", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.5-scsi-0:0:0:0", SYMLINK+="cdrw3", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.5-scsi-0:0:0:0", SYMLINK+="dvd3", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.5-scsi-0:0:0:0", SYMLINK+="dvdrw3", ENV{GENERATED}="1"

This is what I added:

# GB: Adjusted for mulitmedia programs to worki: DVD_RW_DRU-190S (pci-0000:00:1f.5-scsi-0:0:0:0)
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.5-scsi-0:0:0:0", SYMLINK+="cdrom", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.5-scsi-0:0:0:0", SYMLINK+="cdrw", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.5-scsi-0:0:0:0", SYMLINK+="dvd", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.5-scsi-0:0:0:0", SYMLINK+="dvdrw", ENV{GENERATED}="1"

[goranbr]

Re: How to handle dynamic device files for cd and dvd? (SOLVED)

Only changed subject to indicate that this case is solved.