We performed Durpal upgrade to 5.5 from 5.1 on the test and deployment machines successfully. When, we repeated the same steps on the Production and Production Mirror, the customized page does not come up. The developer confirmed that Drupal was running looking at the page that came up after the upgrade. If we revert the changes to 5.1, the front page comes up and everything works.
STEPS performed to upgrade:
* logged in as root
* made a backup directory and copied all the files/directories from ../htdocs directory to this backup directory
* Downloaded drupal-5.5.tar.gz to the 'htdocs' directory and expanded it using:
tar -xzvf drupal-5.5.tar.gz
This created a new directory drupal-5.5 under ../htdocs
* shutdown Apache using "apachectl stop". Verified that Apache stopped.
* Copied all the files from 'drupal-5.5' to ../htdocs directory by using the command below:
cp -rfv /usr/local/apache2/htdocs/drupal-5.5/* /usr/local/apache2/htdocs
* copied the .htaccess from the backup directory to /usr/local/apache2/htdocs/files as:
cp -fv /backup_directory/htdocs/files/.htaccess /usr/local/apache2/htdocs/files/.htaccess
* copied the settings.php file from the backup directory to /usr/local/apache2/htdocs/sites/default/settings.php as: