Drupal 6 to 7 migration not just a simple upgrade, it involves several steps and the process may vary for each site. This may increase in complexity for more complex websites. This tutorial will instruct you the steps that are to be followed one after another in order to upgrade a Drupal 6 website to Drupal 7.
Before upgrading your website to Drupal 7, make sure that all contributed modules used in your website are available for Drupal 7. You have to rewrite any custom modules from your Drupal 6 site.
This is the first and most important step of the upgrade process. In this, you got to backup your database first.
If there was an error,
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