[mythtv-users] Bind mount to keep mythtv files in one place?

[Greg Oliver]

On Fri, Nov 30, 2018 at 10:20 AM Stephen Worthington <
stephen_agent at jsw.gen.nz> wrote:

> On Fri, 30 Nov 2018 07:30:26 -0600, you wrote:
>
> >On Fri, Nov 30, 2018 at 2:12 AM Stephen Worthington <
> >stephen_agent at jsw.gen.nz> wrote:
> >
> >> On Fri, 30 Nov 2018 08:07:45 +0530, you wrote:
> >>
> >> >On Fri, 30 Nov 2018 07:28 Richard Shaw <hobbes1069 at gmail.com wrote:
> >> >
> >> >> Anyone see other options?
> >> >>
> >> >
> >> >Or create symbolic links in /var on the new SSD pointing to the correct
> >> >directories on the old HD mounted under /mnt, e.g.:
> >> >
> >> >cd /var
> >> >sudo ln - s /mnt/oldhd/pictures .
> >> >sudo ln - s /mnt/oldhd/mythvideos .
> >> >sudo ln - s /mnt/oldhd/mythmusic .
> >> >
> >> >Cheers, Ian
> >>
> >> Actually, there is no need to do anything so complicated.  All those
> >> directories can simply be changed in the MythTV settings.  And those
> >> settings are now out of date, as all of them can also be set up as
> >> storage groups now.  So you should probably just go into mythtv-setup
> >> > Storage Groups and add the groups you need.  Note that storage
> >> groups are referenced from the backend - the data is sent to
> >> mythfrontend from mythbackend, and mythbackend accesses the
> >> directories.  The old settings are used by mythfrontend to directly
> >> access the directories, so if you are running separate frontends, you
> >> need to have network paths to access the data if it is actually stored
> >> on the backend box.
> >>
> >
> >Well, my question is more about the file system hierarchy than mythtv
> >settings. I am using Storage Groups but I'd like to stay within the
> >defaults of the RPM Fusion package (which I help maintain) if possible.
> >
> >It could be that it's wildly out of date but it's also very difficult to
> >migrate major changes automagically for users so thing tend to stay the
> way
> >they're established.
> >
> >I may need to do a "fresh" install in a VM so I can see how things
> default.
> >My combined FE/BE installation is >10 years old at this point.
> >
> >The problem is there is not a single "root" folder for mythtv the way it's
> >currently packaged. It could have been:
> >
> >/var/lib/mythtv/{pictures,mythmusic,mythvideos,recordings}
> >
> >Which would have given me a single directory to tie things in but instead
> >it's:
> >
> >/var/lib/{pictures,mythmusic,mythvideos,recordings}
> >
> >Plus a bunch of other stuff in /var/lib...
> >
> >So it looks like the simplest solution if I don't want to move things
> >around is my original idea.
> >
> >Thanks,
> >Richard
>
>
I use bind mounts as well.  I have several external arrays connected over
e-sata (I like the enclosures) and I use it for more than MythTV, but bind
mounts just make it easier to add a single mount that the entire system
just recognizes afterward.  I toyed with union mounts, but it decreased the
throughput speed by more than I was willing to accept.

-Greg



> You are still misunderstanding.  Using the storage groups the way
> MythTV is designed allows you to put things wherever you want.  Just
> move them to where you want them, then point the storage groups to
> where they are.  That is the correct and simplest solution.  That is
> the way MytTV is designed to work.  Things in MythTV are not designed
> to have a single "root" directory, as that has far too many
> limitations and problems.  The initial setup provided by the packages
> is just so that MythTV will work when it is installed.  It is not
> intended to be the way a real system is set up - it does not work well
> as things scale up.
>
> My system is way too big to have everything on one drive.  I have
> seven recording drives and three video drives, for example.  That is
> easy with storage groups - just add each new partition on each drive
> as one entry in the appropriate storage groups.  I have two locations
> where I store pictures - one for all my camera photos and one for
> downloads.  They are on different drives, with an entry in the storage
> group for each location.
>
> In Ubuntu, the packages install the initial setup in /var/lib/mythtv,
> as you have suggested.  But there is no need at all to keep things
> there.  It seems that the packages you are using do it differently,
> but there is still no need to keep using those locations.  Just put
> things where ever *you* want them.
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