[mythtv-users] About updating from Ubuntu 24.04 to 26.04

[Bill Meek]

On Monday 04 May 2026 07:58:09 PM (-05:00), Will Dormann wrote:

 > I recently updated from my MythTV Ubuntu 24.04 system to 26.04, and here 
are my notes, in case it's of any use to people:
 > 
 > 1. If you attempt to run "sudo dist-upgrade", you may note that there is 
no new version of Ubuntu available.  This is because they wait until the .1 
version (August) to release the upgrade option to the masses.  To actually 
upgrade to 26.04, you can run "sudo dist-upgrade -d" to include development 
versions.  As apparently 26.04 is a development version of Ubuntu.  I 
didn't fear this too much as I'm quite confident with my bare-metal 
backup/restore routine, as should all of you.
 > 
 > 
 > 2. Ubuntu is currently under a DDoS, so you may have to attempt to run 
1. multiple times. Since the packages themselves are in mirrors, it's only 
this first step that may be affected.
 > 
 > 
 > 3. During the upgrade process, several config files (in my case 
mysqld.cnf, smb.cnf, postfix files, grub, etc.) will say that there are 
updated configs available.  Just accept the default values to keep your 
existing files.
 > 
 > 
 > 4. I noticed that postfix failed to start after upgrade, as it seems to 
attempt to start before the network is up.  To fix:
 > sudo systemctl edit postfix.service
 > Add:
 > 
 > [Unit]
 > After=network-online.target
 > Wants=network-online.target
 > 
 > 
 > 5. After upgrade, mysql doesn't support native password-based auth 
anymore.  It also seemed to have a problem with what it binds to.  To fix:
 > Add the following lines to the file:
 > [mysqld]
 > mysql_native_password=ON
 > 
 > uncomment:
 > bind-address=0.0.0.0
 > 
 > 
 > 6. Mysql fails to start due to a legacy config option (at least on my 
system).  To fix:
 > sudo nano /etc/mysql/my.cnf
 > 
 > remove:
 > expire_logs_days
 > add:
 > binlog_expire_logs_seconds = 864000
 > 
 > 
 > 7. The system-side config.xml file has a different password than what's 
in my home directory.  To fix:
 > copy ~/.mythtv/config.xml to /etc/mythtv
 > 
 > 
 > 8. mythweb is deprecated .....

What does these 2 return please:

     mysql --version
     sudo mysql --execute "SELECT user,host,plugin FROM user WHERE 
user='mythtv'" mysql

-- 
Bill