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…