[mythtv-users] Upgrade Ubuntu 14 to 16 LTS and errors with MYSQL

Wed Jan 17 02:59:39 UTC 2018

doing more troubleshooting.  What i have found out is this is 100% related
to MySQL network options.  if change my config.xml file to 127.0.0.1 mythtv
can connect to the database.  The issue there is my remote frontends dont
connect.

I dont understand why this wont work:

mitchell at mythtv:/etc/mysql/mysql.conf.d$ cat
/home/mitchell/.mythtv/config.xml
<Configuration>
  <LocalHostName>mythtv</LocalHostName>
  <Database>
    <PingHost>1</PingHost>
    <Host>127.0.0.1</Host>
    <UserName>mythtv</UserName>
    <Password>******</Password>
    <DatabaseName>mythconverg</DatabaseName>
    <Port>3306</Port>
  </Database>
  <WakeOnLAN>
    <Enabled>0</Enabled>
    <SQLReconnectWaitTime>0</SQLReconnectWaitTime>
    <SQLConnectRetry>5</SQLConnectRetry>
    <Command>echo 'WOLsqlServerCommand not set'</Command>
  </WakeOnLAN>
</Configuration>
mitchell at mythtv:/etc/mysql/mysql.conf.d$ cat mythtv.cnf
[mysqld]
bind-address=0.0.0.0
max_connections=100

but when i change the host entry to the IP in config.xml to the
sql/mythtvbackend  IP it fails to connect.  Doesn't setting the bind
address to all 0's allow connections from any system?

On Tue, Jan 16, 2018 at 6:14 PM, Mitchell Gore <mitchell.gore at gmail.com>
wrote:

> any other ideas on troubleshooting sql access?
>
> On Tue, Jan 16, 2018 at 9:36 AM, Jim Abernathy <jfabernathy at outlook.com>
> wrote:
>
>>
>>
>> On 01/16/2018 09:39 AM, Mitchell Gore wrote:
>>
>> Hello,
>>
>> initially i wanted to just upgrade MythTV .28 to .29.  After enabling the
>> .29 repo i was getting dependency errors around libmyth.  I ended up doing
>> a Ubuntu release upgrade to 16.04 LTS.  That was all going well until i ran
>> into upgraded MySQL to 5.7 and got the table_cache=128 error from the
>> mythtv-tweaks.cnf file.  I got this error:
>>
>> Setting up mysql-server-5.7 (5.7.20-0ubuntu0.16.04.1) ...
>> Renaming removed key_buffer and myisam-recover options (if present)
>> ERROR: Unable to start MySQL server:
>> 2018-01-16T00:28:57.390552Z 0 [ERROR] unknown variable 'table_cache=128'
>> 2018-01-16T00:28:57.392762Z 0 [ERROR] Aborting
>> Please take a look at https://wiki.debian.org/Teams/MySQL/FAQ for tips
>> on fixing common upgrade issues.
>> Once the problem is resolved, run apt-get --fix-broken install to retry.
>> dpkg: error processing package mysql-server-5.7 (--configure):
>>  subprocess installed post-installation script returned error exit status
>> 1
>> dpkg: dependency problems prevent configuration of mysql-server:
>>  mysql-server depends on mysql-server-5.7; however:
>>   Package mysql-server-5.7 is not configured yet.
>>
>> dpkg: error processing package mysql-server (--configure):
>>  dependency problems - leaving unconfigured
>> Errors were encountered while processing:
>>  mysql-server-5.7
>>  mysql-server
>>
>> I cleared that line from the file and reran the sudo apt-get upgrade and
>> all seamed okay.  I was able to upgrade to .29 without issue.
>>
>> The problems began when i went to upgrade the database by running
>> mythbackend from command line.  For some reason mythbackend was unable to
>> log into the database.  I am able to log into MySQL as root and my MythTV
>> user using the password in /etc/mythtv/config.xml.  The database is still
>> there as well.
>>
>> I have tried downgrading MythTV to .28 and still get the same errors.  I
>> have also removed MySQL and reinstalled.  At this point i am lost.  Any
>> ideas?
>>
>> Thanks,
>> Mitchell
>>
>>
>> I also have had problems with the upgrading process.  I never could get
>> the upgrade from .27 to .28.  So I just backed up all recordings and the
>> database and completely started over and restored the recording and
>> database.  Had no problems after that.
>>
>> I tried to upgrade in place from 16.04 mythtv .28 to v29, but again too
>> many errors.  So I again backed up all the recordings to a NAS and backed
>> up the database. I created a new Ubuntu 16.04 system and went straight to
>> v29 of mythtv.  Restored the recordings and database and all is well.
>>
>> That's the only process that I've had work for me.  If you are interested
>> I documented what I did recently so I'd have it somewhere to reference if I
>> had to do it all again due to failed hardware or something.
>> http://mythtvinstall.blogspot.com/2018/01/creating-combined-
>> mythtv-headless.html
>>
>> Jim A
>>
>>
>>
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>>
>>
>>
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>>
>
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