Upgrading between Mythbuntu Releases
As with all upgrades, please backup your database and other important files before upgrading. You do not need to upgrade to auto-builds prior to upgrading to the next Mythbuntu release. This will be taken care of during the upgrade process.
To upgrade, you will follow the Ubuntu Network Upgrade Guide.
Clean Install of Mythbuntu, keeping old database
You can also backup your database and important files and do a clean install of Mythbuntu. To do so, please follow the instructions found here: MythTV Database Backup and Restore scripts
Most people tend to find and store their scripts in the following directory:
Note: if your system doesn't have the necessary scripts, they may be obtained from the above mythtv wiki link.
Upgrading to the next release of MythTV
The Mythbuntu team provides updated MythTV versions though the MythTV-Updates repository.
Please see the Mythbuntu-repos page for more info.