[mythtv-users] MySql broken after updates

[Mike B]

A couple of weeks ago Mythbuntu had some updates available.  I ran the 
updates.  Since then, MythTV hasn't been running correctly.  On my 
frontend, when I try to access a video or recording, I get an error 
saying the file could not be found.  On my backend, when I try to start 
mythbackend manually, I get an error saying, "Cannot login to database," 
followed by "Would you like to configure the database now?"  It does not 
give me the option to answer.  I get some logging messages, then 
finally, I get, "Can't connect to local MySQL server through socket 
'/var/run/mysqld/mysqld.sock'".

I don't have a mysql.sock or a mysqld.sock file on my system.

Earlier, I was getting an error saying mythtv (the user) could not login 
to the database due to a permission problem.  I don't remember the exact 
message.  I was trying to duplicate that message when I got the stuff above.

It seems like my database is corrupt, but I don't know much about 
MySQL.  Can anybody offer any suggestions?

BTW, I'm running Mythbuntu 14.04.1.  MythTV version is 0.27.

Mike