Drupal throwing blank update.php file

Question

I'm updating drupalfrom 7.32 to 7.33

I followed the steps here for updating drupal 7: https://www.drupal.org/node/1223018

I also followed the step that mentioned to set $update_free_access to TRUE (temporarily) while updating.

But, when I visit mysite.com/update.php it is still throwing a completely blank page.

I also verified in settings.php that:

• the file had the database configuration values
• Verified that actual data still existed in this database.

What gives? Are there any other solutions to fix this ? (Without having to do a complete clean install)

UPDATE Errors in error.log are:

PHP Fatal error:  Unknown: Failed opening required
PHP Warning:  Unknown: failed to open stream: Permission denied in Unknown on line 0

Thanks!

Answer 1

This was an permissions error. I had, had all files not on 755.

I had files having octets of 600 to 777 and they needed to be changed to 755 with:

sudo chmod 755

I followed "KeithM"'s advice on directory permissions here: https://drupal.stackexchange.com/questions/26131/correct-permission-for-site-default-and-files-folders