Another follow-up to my post about upgrading from Drupal-5 to Drupal-6. This note is about the image module.
If upgrading a Drupal-5 site that utilizes the image module, and you follow my directions explicitly, you'll get an error when trying to update the image module.
Call to undefined function image_get_sizes()
See more about this issue here (there are several other duplicate issues linked from that one).
The solution is to upgrade the Drupal-5 site's image module to tag DRUPAL-5--2 before attempting upgrade to Drupal-6. This can be done with the command:
$ drupalCVSDeploy.sh -versiontag DRUPAL-5--2 update module image {site name}
After this, you need to update the site as normal:
$ drupalSetAccessCheck.sh false {site name}
hit http://{site name}/update.php
$ drupalSetAccessCheck.sh true {site name}
Then, you're ready to upgrade to Drupal-6