[mythtv-users] Backend DB migration--replace or just restore?
jfabernathy at gmail.com
Sun Jul 26 18:23:06 UTC 2020
On 7/26/20 2:02 PM, DryHeat122 wrote:
> On Sun, Jul 26, 2020 at 10:49 AM James Abernathy
> <jfabernathy at gmail.com <mailto:jfabernathy at gmail.com>> wrote:
> > Bill thanks for all the advice. I'm really grateful. I
> have started over just to get back to square one and undo
> anything I have screwed up.
> > I have two questions about xmltv I will post on the other
> thread. Re installation: Should I run everything--i.e.
> mythtv-setup, xmltv
> > config--as user mythtv rather than as user steve? I'm
> thinking the answer is yes and this is where I started
> developing problems before.
> mythtv-setup is always to be run as user mythtv, but in
> reality, it probably isn't. In the past, that meant that
> things like Storage Directories can't be read and the tests
> for them fail (if proper 'normal' permissions were
> XMLTV adds a new reason for that. But I didn't use it, rather
> did the configuration from the command line.
> And in that case also ran it as user mythtv.
> Being practical, or perhaps lazy/forgetful, I added a line in
> my .bashrc so I can run mythfilldatabase
> without thinking too hard:
> alias mfdbrun='sudo --login --user=mythtv mythfilldatabase'
> Here's my problem with trying to run mythtv-setup as user
> 'mythtv'. I just confirmed this on a fresh Ubuntu 20.04 system.
> When the Ubuntu system was installed the initial user was 'jim'.
> The mythtv install created the 'mythtv' user but it is not a
> normal login user so to run mythtv-setup as 'mythtv' I had to give
> user 'mythtv' a password. If I do that I have to logout and back
> in as user 'mythtv' and run mythtv-setup otherwise I get some
> xhost error.
> When you exit. mythtv-setup, it asks to start the backend and if
> you say yes, it asks for a password which will not work with user
> 'mythtv' unless you've added mythtv to the sudo group.
> To avoid all these issues, while user jim, I just sudo su mythtv
> and create the recordings directory with mkdir
> /home/mythtv/recordings and then it has the right permissions.
> While I'm there I set up XMLTV since I'm user mythtv. Once that's
> done I exit back to user jim and run mythtv-setup.
> Never had a problem. However if I have to run mythfilldatabase
> manually, I sudo su mythtv and then run it.
> JIm A
> OK so, just to make sure I understand the advice and I am getting
> consistent advice....do run xmltv config as mythtv, but run
> mythtv-setup as steve, not mythtv. Right? And also I should make
> sure the permissions on my video storage directory permit mythtv as well.
First let me say that we all have ways that work for us. I'm no
developer and I don't play one on TV. However, I've been using mythtv
for a really long time and have developed a process that works for me.
First since I observe Ubuntu as the Linux of choice for mythtv, that's
what I use. When I install I create the initial user as me, 'jim'.
After mythtv is installed I know the backend will run as user 'mythtv'
and since the backend kicks off mythfilldatabase everyday then it will
be run as user 'mythtv'. So I need my directories that the backend uses
for recordings, etc. to have the right permissions. Hence the sudo su
mythtv before I do the mkdirs for the backend files.
As to XMLTV. the wiki says to run it as user 'mythtv' and that is what
I do. And by doing this I don't need a bunch of links to keep it working
a user 'jim'
As to mythtv-setup, since it needs to run with 'X' because of it's gui,
the easiest why is to run it as the initial user; 'jim' for me.
mythtv-setup also needs to be run by a user that is a part of the sudo
group (definitely in v31). Again easiest way is to run as initial user;
'jim' for me.
As to mythfilldatabase, it needs to be run as user 'mythtv' if run
manually. However, during installation, after I complete mythtv-setup
and XMLTV, I just reboot. That starts up mythtv-backend and after a few
minutes, mythfilldatabase seems to start on it's own. If nothing
populates in the EPG after 10 minutes, I "sudo su mythtv" and then run
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