[mythtv-users] 0.25 not autodiscoving mount point for bluray discs

[Mike Perkins]

On 12/05/12 20:39, kenkyee at yahoo.com wrote:
> Mike Perkins wrote
>
>> This sounds like just the thing udev rules are made for. since you know
>> your hardware is on /dev/sr0, you ought to be able to write a rule to make
>> a known symlink whenever a disk is mounted. Something like the way we do
>> them for tuners which move about at boot time.
>
> Are you saying that a MythTV install will install its own udev rules to deal
> w/ tuners?  I didn't realize it did that...
>
> I was actually pretty surprised it does this behavior (mounting to different
> locations), but apparently a few Linux distros do the same thing), so it's
> something the newer kernels do and default behavior MythTV will have to
> compensate for at some point.  But if I had some sort of script I could run
> before MythTV's optical player that launched that could reconfigure the
> bluray mount point in the config, it'd also work...or if that alternate
> script function actually worked for me, I'd be happy :-P
>
I didn't mean to imply that mythtv would do that, sorry if you read it that way. 
What happens with tuners is that hardware can take variable amounts of time to 
initialize depending on circumstances and may get assigned random /dev/xxx 
slots, meaning that if (for example) you have tuners of more than one type they 
may not always come up in the same order.

We've had this problem for a long while now, and information on how to handle it 
is in the wiki. What you (and I mean *you*, the owner of the equipment) 
basically have to do is set udev rules which identify the hardware by, say, the 
manufacturer or model number and use those to create dependable symlinks which 
you can then use in mythtv-setup.

What I was suggesting is that you did the same for your bluray drive - you know 
that it's /dev/sr0, say, but when you mount a disk it mounts to /media/<label> 
(roughly). Every time the disk is mounted, then, your udev rule makes a symlink 
from /dev/sr0 to /media/bluray or whatever you like, and then you reference 
/that/ in mythtv.

-- 

Mike Perkins