Public bug reported:

Binary package hint: mythtv-backend

$ dpkg -l mythtv-backend
ii  mythtv-backend      0.21.0+fixes16838-0 A personal video recorder 
application (server)

$ lsb_release -rd
Description:    Ubuntu 8.04
Release:        8.04

what happens - I cannot complete the configuration of mythtv with
mythtv-setup. This appears to be because the mysql database is not fully
populated.

what should happen - I should be able to set up mythtv.

Background information
$ id
uid=1000(vjm) gid=1000(vjm) 
groups=4(adm),20(dialout),24(cdrom),25(floppy),29(audio),30(dip),44(video),46(plugdev),107(fuse),110(lpadmin),120(admin),125(mysql),126(mythtv),1000(vjm)

$ sudo /etc/init.d/mysql status
 * /usr/bin/mysqladmin  Ver 8.41 Distrib 5.0.51a, for debian-linux-gnu on i486
Copyright (C) 2000-2006 MySQL AB
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license

Server version          5.0.51a-3ubuntu5.1
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /var/run/mysqld/mysqld.sock
Uptime:                 1 hour 25 min 56 sec

Threads: 1  Questions: 43  Slow queries: 0  Opens: 23  Flush tables: 1
Open tables: 17  Queries per second avg: 0.008

$ ps -fade|grep myth
mythtv    8983     1  0 22:22 ?        00:00:06 /usr/bin/mythbackend --daemon 
--logfile /var/log/mythtv/mythbackend.log --pidfile 
/var/run/mythtv/mythbackend.pid
vjm       9178  6809  0 22:34 pts/0    00:00:00 grep myth

What I tried to do:

$ mythtv-setup
(I get a popup asking to close any running mythbackends. I say OK)

(I get a small xterm with error messages in it, saying unable to connect to 
database.
Could not capture this for you, because a fullscreen display suddenly appears)
The fullscreen display prompts for things like database name, user , password.
I left these as defaults, and hit <return> immediately.
(Oh, and it shows "No UPnP devices available", to which I say "OK" since there 
is nothing else to say.

On the original terminal I get:
 * Stopping MythTV server: mythbackend                                   [ OK ] 
 * Restarting MythTV server: mythbackend                                        
No /usr/bin/mythbackend found running; none killed.
                                                                         [ OK ]

(I get another popup, would you like to run mythfilldatabase?) <cancel>

yet, I am able to connect to mysql as [EMAIL PROTECTED], with no password.
$ mysql -u [EMAIL PROTECTED]
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 87923
Server version: 5.0.51a-3ubuntu5.1 (Ubuntu)

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql>  show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema | 
+--------------------+
1 row in set (0.00 sec)
mysql> use mythconverg;
ERROR 1044 (42000): Access denied for user ''@'localhost' to database 
'mythconverg'
mysql> quit
Bye

I checked for .my.cnf files and so forth, could find none in my home dir nor in 
/home/mythtv.
The closest thing was the .mythtv/mysql.txt file;

$ grep -v ^# /home/mythtv/.mythtv/mysql.txt
DBHostName=localhost

DBHostPing=no

DBUserName=mythtv
DBName=mythconverg
DBType=


DBPassword=0ciB7wRh

$ sudo dpkg-reconfigure mythtv
< does nothing.>

$ sudo dpkg-reconfigure mythtv-backend
<answer NO to create v4l device nodes>
Then it asks me to run mythtv-setup. oh. Well that's going to be a problem.
Then I have to start mythtv-backend again.

Try that anyway:
$ /etc/init.d/mythtv-backend stop
$ /etc/init.d/mythtv-backend start
(no errors, let's stop again)
$ /etc/init.d/mythtv-backend stop
$ mythtv-setup
does not seem to help.

** Affects: mythtv (Ubuntu)
     Importance: Undecided
         Status: New

-- 
mythtv-setup: unable to connect to database
https://bugs.launchpad.net/bugs/243504
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