Interestingly, my 70-persistent-cd.rules exists, it's just effectively empty:
$ cat /etc/udev/rules.d/70-persistent-cd.rules # This file maintains persistent names for CD/DVD reader and writer devices. # See udev(7) for syntax. # # Entries are automatically added by the 75-cd-aliases-generator.rules # file; however you are also free to add your own entries provided you # add the ENV{GENERATED}=1 flag to your own rules as well. I wonder if Ubuntu didn't properly detect something when it was installing itself? For reference, here's the pertinent output of some of the commands you mention, from my machine: $ sudo lshw -C disk ... *-cdrom description: DVD-RAM writer product: BD-RE WH10LS30 vendor: HL-DT-ST physical id: 0.0.0 bus info: scsi@3:0.0.0 logical name: /dev/sr0 version: 1.00 capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram configuration: ansiversion=5 status=nodisc $ ls /dev/disk/by-path/ ... pci-0000:00:11.0-scsi-3:0:0:0 $ ls -Al /dev/disk/by-id/ ... lrwxrwxrwx 1 root root 9 Jul 9 23:38 ata-HL-DT-ST_BD-RE_WH10LS30_K97A3NA2854 -> ../../sr0 Does any of that matter? I doubt it. I'd have to check specifically, but I'm fairly certain I get the same problem on all other machines I use. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/993728 Title: /dev/dvd disappears when a DVD is inserted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/udev/+bug/993728/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs