/dev/dvd and /dev/dvdrw symlinks no longer created

[Phil Brady]

With a fresh Mythbuntu 14.04 installation AMD 64 bit combined frontend/backend , there are two issues with the internal DVD player.

1. It fails with the message: “failed to open device /dev/dvd”.

In 12.04 there was a link /dev/dvd -> /dev/sr0 which was created at each reboot.
This link is missing in 14.04. Creating it with ‘sudo ln’ allows frontend to play DVDs but the link is removed at next reboot.

A more lasting workaround is:
Frontend > setup > Media settings > Videos settings > Player settings > DVD Drive changed from /dev/dvd to /dev/sr0

2. Ejecting media fails with error message: “no devices to eject - media monitor”
It does this with either the /dev/dvd link in place or with the settings changed as abov

[Mario Limonciello (superm1)]

I believe this has to do with the transition from udev->systemd. Previously these rules were created by /lib/udev/write_cd_rules which was part of the udev package.

I don't see this in the present systemd package however.

[Al Lopez (gnurocks)]

The missing symlink is unrelated to the eject error.

Installing udisks should correct the “no devices to eject - media monitor” error.

Note: https://code.mythtv.org/trac/ticket/11699

[Al Lopez (gnurocks)]

Also, replacing "/dev/dvd" with "default" works too.

[Phil Brady (phil-brady)]

Many thanks -
1. sudo apt-get install udisks has indeed fixed the eject problem
2. 'default' is also good.

[Martin Pitt (pitti)]

Most of this was fixed in 204-9, i. e. in current Utopic. /dev/dvd etc. work now, just /dev/cdrom is still broken, I'll fix that.

[Martin Pitt (pitti)]

http://anonscm.debian.org/gitweb/?p=pkg-systemd/systemd.git;a=commitdiff;h=d5686ac2

Tested with scsi_debug and in KVM now.

[Launchpad Janitor (janitor)]

This bug was fixed in the package systemd - 208-7ubuntu4

---------------
systemd (208-7ubuntu4) utopic; urgency=medium

  * Lower Breaks: to lvm2 again. Our lvm2 package has always used udev for
    device setup, and thus should be compatible with systemd, too.
 -- Martin Pitt <email address hidden> Thu, 07 Aug 2014 07:11:28 +0200