Recording groups are a feature of mythtv .21 or higher. We use mythtv 20.2 fixes if I am not mistaken. So the use of storage groups is not implemented. If this is a feature you want , perhaps checkout the new version of MythBuntu www.mythbuntu.org
. However, as LMCE is a linux based system, you could mount another drive to the /home/public/data/videos/tv_shows_1 directory in you /etc/fstab file. This is what I do with a 500GB drive.
As to seeing multiple tv_shows directories, this is for the use of multiple tuners. In my installation I have 4 tuners, they show up as /home/public/data/videos/tv_shows_<moon number> for example at my place it is
/home/public/data/videos/tv_shows_1 is linked to the tuner in my core
/home/public/data/videos/tv_shows_42 is linked to the pvr150 in my MD moon42
/home/public/data/videos/tv_shows_86 is linked to the pvr150 in my MD moon86
/home/public/data/videos/tv_shows_96 is linked to the Aver Media card in my MD moon96
These are identified by the mythtv-setup per MD. I have them mounted as follows:
/dev/sdb1 /home/public/data/videos/mythtv/ ext3 defaults 0 1 for my 500G drive on dcerouter
And the directory structure on this drive contains the folders:
tv_shows_1 tv_shows_42 tv_shows_86 tv_shows_96
And of course I made the changes to mythtv-setup on each MD to reflect the directory structure:
And so on......
So you can use different drives, for mythtv storage. However you can not share groups like you can with the newer versions of mythtv. But I am sure in the future, with the level of developers we have, it will be a possibility.