I think I've partially figured it out...

The database of the concrete5 site is over 20MB, and on checking the logs I found the following:

[Fri Sep 30 14:43:16 2011] [error] [client 90.211.75.11] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /home/sites/craveonmusic.com/public_html/updates/concrete5.4.2.1/concrete/libraries/3rdparty/Zend/Cache/Backend/File.php on line 656

I am assuming from this that perhaps the database script didn't finish fully and this is why its unable to find the youtube block handle. Is there a way to increase the maximum execution time?

Only issue now is on clicking upgrade it takes me instantly to that message, so I'm unsure how to do a complete/fresh install now...any help at all?

EDIT: Looks like the upgrade has 'partially' taken but not completed, but if I renamed the update package Concrete5 throws errors at me (or rather apache does in the logs) so I don't think I can revert it and come back...and I think the incomplete install is causing speed issues with the site.

Hi,

I have the same problem. Also with a large database.
Did you find a solution?

Regards, Casper

hey,
I submitted an addon that decreases the db size the other day. Its not apporved yet, but its going to be free and available athttp://www.concrete5.org/marketplace/addons/remove-old-page-version...

Ok, thnx....

By the way... i did solve it by uninstalling the youtube add-on.. then the upgrade was fine.

But now the you-tube block is gone... and i do need it.

Any ideas on this one.

just copy the "youtube" folder out of the core blocks folder "/concrete/blocks" folder and place it in the blocks folder in base directory of your install. then you can re-install it on the "Add Functionality" page in the dashboard.

or even better and less work:

before you upgrade place the youtube block in /blocks , this way you don't have to uninstall and install it manually