Install the base system
After downloading and burning the appropriate CD, boot the CD up and start the installation.
Insert & Boot your Ubuntu Live Install Disk
Double click the Install Icon on the desktop
 - Choose your Language
 - Choose your Time Zone
 - Choose your keyboard
 
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  Choose Either Guided Partitioning and the Drive you want to install to, or Manual Partitioning.  | 
Note that the frontend partitioning is not as important as the backend, so a default partitioning scheme ("Guided") is fine.  | 
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  Choose to Migrate Documents and Settings, if appropriate  | 
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  Choose your Name, Login Name, & Password  | 
Be sure not to use the username mythtv, as it will be generated automatically later  | 
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It is fine for "your name" and the "log in name" to be the same  | 
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If there will be more than one frontend on your MythTV network it's a good idea to give this computer an easily-identifiable name, so configuring individual frontend settings is possible  | 
- Take a break while the system installs
 Complete the installation & Reboot