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[yota <yota@xxxxxxxxxxxxxxxxxx>]

Even if I'm not affected by this exact bug the lack of proper
environment settings (like $HOME) are making my mythfilldatabase fail:

...
2010-04-09 13:16:53.430 Using runtime prefix = /usr
2010-04-09 13:16:53.446 Using configuration directory = /.mythtv
2010-04-09 13:16:53.446 Unable to read configuration file mysql.txt
2010-04-09 13:16:53.446 Empty LocalHostName.
...

I believe this comes from how the mythbackend process is launched in
/etc/init/mythtv-backend.conf which executes the process without setting
the environment. This said I was able to resolve the problem by
launching mythbackend after a switch user to mythtv with "--login"
option.

The modified version of /etc/init/mythtv-backend.conf is attached.

** Attachment added: "launch mythbackend after switching user with --login"
   http://launchpadlibrarian.net/43951600/mythtv-backend.conf

-- 
mythbackend cannot find mysql.txt after upgrade
https://bugs.launchpad.net/bugs/546616
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Status in Mythbuntu, Ubuntu derivative focused upon MythTV: Incomplete

Bug description:
After upgrading to Mythbuntu 10.04 beta, mythbackend doesn't work.

It's unable to connect to the database, because it can't find mysql.txt, I suppose because in the service mythbackend's context, either MYTHCONFDIR is not set, or HOME is not set.  Since I have a correct mysql.txt both in /etc/mythtv/ and in $HOME/.mythtv.

If I start mythbackend by hand in a terminal, it works fine.

It spews this continually:


................................................................................
2010-03-24 21:44:17.606 UPnPautoconf() - No UPnP backends found
2010-03-24 21:44:17.606 No UPnP backends found

No UPnP backends found

Would you like to configure the database connection now? [no]  
[console is not interactive, using default 'no']
2010-03-24 21:44:17.608 Deleting UPnP client...
2010-03-24 21:44:18.218 Failed to init MythContext, exiting.
2010-03-24 21:44:18.344 mythbackend version: trunk [23623] www.mythtv.org
2010-03-24 21:44:18.345 Using runtime prefix = /usr
2010-03-24 21:44:18.345 Using configuration directory = /.mythtv
2010-03-24 21:44:18.345 Unable to read configuration file mysql.txt
2010-03-24 21:44:18.345 Empty LocalHostName.
2010-03-24 21:44:18.346 Using localhost value of mythtv
2010-03-24 21:44:18.352 New DB connection, total: 1
2010-03-24 21:44:18.359 Unable to connect to database!
2010-03-24 21:44:18.359 Driver error was [1/1045]:
QMYSQL: Unable to connect
Database error was:
Access denied for user 'mythtv'@'localhost' (using password: YES)

................................................................................
2010-03-24 21:44:20.917 UPnPautoconf() - No UPnP backends found
2010-03-24 21:44:20.917 No UPnP backends found

No UPnP backends found

Would you like to configure the database connection now? [no]  
[console is not interactive, using default 'no']
2010-03-24 21:44:20.918 Deleting UPnP client...