OK, upgrade went just fine until it got to "Initializing Documents" - failed to initialize documents see log.......
As it went through and wanted to update the document templates for each domain on the server those all failed as well.
When I logged in after the upgrade and went to documents there was a http 500 error which refered to an account outside of my domain that was missing - email@example.com.
Indeed the wiki account for that domain had been deleted (this IMHO should not be allowed for anyone but the super user). I recreated the wiki account for that domain and now the documents page loads without the error on other domains, but only the folders are there, no old documents.
You can create a new document and save it but you can't get back to it.
When I hover over a Notebook it tells me there are documents in it but there is no way to view them.
Need some help here