eZ Publish Extensions, Disable or Enable from Settings Files

With all the overrides and ini files, remembering where to manually change settings can be a trick. The admin gui can handle these settings for the most part. But more than once have had extensions not make it through an upgrade cycle. When the upgrade fails, the admin interface just throws a "Fatal error: eZ Publish did not finish its request". No way to recover from the gui in other words.

settings/override/site.ini.append is the file to alter.

Edit this file to manually and remove the line that is loading the offending extenstion(s). May need to clear caches following the change.