Migration of CentOS-2 to CentOS-5

1. Direct Upgrades Are Not Supported

As of 2007-04-12, an anaconda or yum upgrade is completely unsupported. As time progresses we will see what can be done.. but currently the best way to do migrate from CentOS-2 to CentOS-5 is the following:

1.1. Safest Migration

• Bring up a second system with CentOS-5
• Port over applications and data from CentOS-2 to CentOS-5 looking for application syntax and operational differences.
• Take down old system and move to new system

1.2. Riskier Migration

• Backup the system to alternative media (USB diskdrive, etc).
• Do a fresh install of CentOS-5
• Find out which applications work from old data.