We recently had a major poweroutage that caused our freenas server to bootdown (Battery Backups ran out of juice). When rebooting the server owncloud failed to restart and was throwing a php error. It appears it was related to a permission problem. We had not upgraded owncloud in a while on the freenas server so we figured we just run the update and it would fix the permission problems (I know lazy). Well, the upgrade went through on the freenas side without a problem, but when accessing the owncloud interface it is now asking to upgrade to 9.1. When we push this button, it says :
Exception: Updates between multiple major versions and downgrades are unsupported.
Is there a way to reinstall owncloud without losing all the current data in the freenas jail? We can't start from scratch as their is over 300GB worth of user data.