Package: udev Version: 0.100-2 Severity: normal As you can see from the attached z25_persistent-cd.rules, the same external USB CD ROM gets assigned different names depending on where it is plugged in.
In general, this is not a bug (for example, if I plug in several CD drives, I understand that they may be numbered differently depending on how I install them). In this particular case, I assert that it is a bug, because it was the same CD drive plugged in to two different USB host adapters, but in each case it was the only CD drive plugged into my system, so it seems reasonable that it should be /dev/cdrom, so that many common programs that default to this device name will find it. Put another way, it seems odd that on a system with only one CD drive, it should end up as /dev/cdrom1, and not /dev/cdrom. Finally, I note that in my z25_persistent_cd.rules file, there are two rules for the same drive which correctly give it the same name (but I think these were generated together, as one seems to be a special case of the other), and one which gives it a different name. Sorry for my cluelessness regarding USB and udev, but I have read the several other bug reports in this area carefully, and my bug seems to be different from all of them (in particular, I am running udev 0.100-2, which seems to fix earlier similar bugs). -- Package-specific info: -- /etc/udev/rules.d/: /etc/udev/rules.d/: total 12 lrwxrwxrwx 1 root root 20 2005-11-01 00:08 020_permissions.rules -> ../permissions.rules lrwxrwxrwx 1 root root 19 2006-04-11 19:48 025_libgphoto2.rules -> ../libgphoto2.rules lrwxrwxrwx 1 root root 16 2006-08-11 14:41 025_libsane.rules -> ../libsane.rules lrwxrwxrwx 1 root root 22 2006-04-18 14:18 025_logitechmouse.rules -> ../logitechmouse.rules lrwxrwxrwx 1 root root 15 2006-08-29 11:38 libnjb.rules -> ../libnjb.rules lrwxrwxrwx 1 root root 13 2005-11-01 00:08 udev.rules -> ../udev.rules lrwxrwxrwx 1 root root 25 2006-04-18 11:51 z20_persistent-input.rules -> ../persistent-input.rules lrwxrwxrwx 1 root root 19 2006-04-18 11:51 z20_persistent.rules -> ../persistent.rules -rw-r--r-- 1 root root 1465 2006-10-21 22:24 z25_persistent-cd.rules -rw-r--r-- 1 root root 1468 2006-10-21 22:18 z25_persistent-cd.rules~ -rw-r--r-- 1 root root 477 2006-09-15 22:36 z25_persistent-net.rules lrwxrwxrwx 1 root root 33 2006-05-10 16:19 z45_persistent-net-generator.rules -> ../persistent-net-generator.rules lrwxrwxrwx 1 root root 12 2005-11-01 00:08 z50_run.rules -> ../run.rules lrwxrwxrwx 1 root root 16 2006-04-18 11:51 z55_hotplug.rules -> ../hotplug.rules lrwxrwxrwx 1 root root 19 2006-04-18 13:51 z60_alsa-utils.rules -> ../alsa-utils.rules lrwxrwxrwx 1 root root 15 2006-04-18 14:00 z60_hdparm.rules -> ../hdparm.rules lrwxrwxrwx 1 root root 33 2006-06-03 10:13 z60_xserver-xorg-input-wacom.rules -> ../xserver-xorg-input-wacom.rules lrwxrwxrwx 1 root root 29 2006-09-15 22:36 z75_cd-aliases-generator.rules -> ../cd-aliases-generator.rules lrwxrwxrwx 1 root root 12 2006-10-16 17:36 z99_hal.rules -> ../hal.rules -- /sys/: /sys/block/hda/dev /sys/block/hda/hda1/dev /sys/block/hda/hda2/dev /sys/block/hda/hda3/dev /sys/block/ram0/dev /sys/block/ram10/dev /sys/block/ram11/dev /sys/block/ram12/dev /sys/block/ram13/dev /sys/block/ram14/dev /sys/block/ram15/dev /sys/block/ram1/dev /sys/block/ram2/dev /sys/block/ram3/dev /sys/block/ram4/dev /sys/block/ram5/dev /sys/block/ram6/dev /sys/block/ram7/dev /sys/block/ram8/dev /sys/block/ram9/dev /sys/class/drm/card0/dev /sys/class/drm/card1/dev /sys/class/input/input0/event0/dev /sys/class/input/input1/event1/dev /sys/class/input/input1/mouse0/dev /sys/class/input/mice/dev /sys/class/misc/agpgart/dev /sys/class/misc/fuse/dev /sys/class/misc/psaux/dev /sys/class/misc/rtc/dev /sys/class/rlocate/rlocate/dev /sys/class/sound/adsp/dev /sys/class/sound/audio1/dev /sys/class/sound/audio/dev /sys/class/sound/controlC0/dev /sys/class/sound/controlC1/dev /sys/class/sound/dsp1/dev /sys/class/sound/dsp/dev /sys/class/sound/mixer1/dev /sys/class/sound/mixer/dev /sys/class/sound/pcmC0D0c/dev /sys/class/sound/pcmC0D0p/dev /sys/class/sound/pcmC0D1c/dev /sys/class/sound/pcmC0D2c/dev /sys/class/sound/pcmC0D3c/dev /sys/class/sound/pcmC0D4p/dev /sys/class/sound/pcmC1D0c/dev /sys/class/sound/pcmC1D0p/dev /sys/class/sound/timer/dev /sys/class/usb_device/usbdev1.1/dev /sys/class/usb_device/usbdev2.1/dev /sys/class/usb_device/usbdev3.1/dev /sys/class/usb_device/usbdev4.1/dev /sys/class/usb_device/usbdev4.2/dev /sys/class/usb_device/usbdev4.3/dev /sys/class/usb_device/usbdev4.4/dev /sys/class/usb_device/usbdev4.5/dev /sys/class/usb_device/usbdev4.6/dev /sys/class/usb_device/usbdev4.7/dev /sys/class/usb_device/usbdev4.8/dev /sys/class/usb/lp0/dev -- Kernel configuration: isapnp_init not present. -- System Information: Debian Release: testing/unstable APT prefers testing APT policy: (500, 'testing') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.16 Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Versions of packages udev depends on: ii libc6 2.3.6.ds1-4 GNU C Library: Shared libraries ii libselinux1 1.32-2 SELinux shared libraries ii libvolume-id0 0.100-2 libvolume_id shared library ii lsb-base 3.1-15 Linux Standard Base 3.1 init scrip udev recommends no packages. -- no debconf information
# This file was automatically generated by the /lib/udev/write_cd_rules # program, probably run by the cd-aliases-generator.rules rules file. # # You can modify it, as long as you keep each rule on a single line # and set the $GENERATED variable. # SCB-2408 (pci-0000:00:1d.7-usb-0:5:2.0-scsi-0:0:0:0) ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:5:2.0-scsi-0:0:0:0", SYMLINK+="cdrom", ENV{GENERATED}="1" ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:5:2.0-scsi-0:0:0:0", SYMLINK+="cdrw", ENV{GENERATED}="1" ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:5:2.0-scsi-0:0:0:0", SYMLINK+="dvd", ENV{GENERATED}="1" # SCB-2408 (pci-0000:00:1d.7-usb-0:5.4:2.0-scsi-0:0:0:0) ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:5.4:2.0-scsi-0:0:0:0", SYMLINK+="cdrom", ENV{GENERATED}="1" ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:5.4:2.0-scsi-0:0:0:0", SYMLINK+="cdrw", ENV{GENERATED}="1" ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:5.4:2.0-scsi-0:0:0:0", SYMLINK+="dvd", ENV{GENERATED}="1" # SCB-2408 (pci-0000:00:1d.7-usb-0:1:2.0-scsi-0:0:0:0) ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:1:2.0-scsi-0:0:0:0", SYMLINK+="cdrom1", ENV{GENERATED}="1" ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:1:2.0-scsi-0:0:0:0", SYMLINK+="cdrw1", ENV{GENERATED}="1" ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1d.7-usb-0:1:2.0-scsi-0:0:0:0", SYMLINK+="dvd1", ENV{GENERATED}="1"