Upgrading Old Moodle Guide to Latest Version

For experienced and wise administrators, you only need the featured image information to proceed and ignore the rest of the guide. I tried upgrading directly from version 1.9 to the latest and failed. I tried several upgrade paths and found one that succeeded which are moodle version 1.x to 1.9 stable to 2.2 stable to 2.7 stable to 2.9 stable to 3.0 stable to latest. For those who just tried installing and using Moodle, I prepared a more detailed guide here, but for others may find it hard to understand this guide without trying installing and using Moodle first. The result is that contents and users are alright, haven’t check the others though.

Summary

This guide serves for administrators in large institutions who needs to upgrade their Moodle version to the latest version. Administrators usually forgets to upgrade their Moodle and the problem is that the web interface connects to Moodle developer’s server and attempts to upgrade to the latest version directly where as time passes, this does not work due to the administrators’ Moodles’ version far behind the latest version. If I am not wrong, the web interface will show that the upgrade button is no longer supported due to the far behind version and asked to upgrade manually.