2.2 Upgrade fail

Tried twice to upgrade from 2.1.11 to to 2.2.
Config: Apache, PHP 5.5, I've followed the readme files and upgrade threads.
After copying the files over to my host, I try to load vanilla and the server brings back a blank screen.
I've followed the Troubleshooting guidelines with no luck.
Any help would be appreciated.
After failing I restore files and DB to 2.1.11.
0
Comments
A blank screen typically indicates a server error. Can you access PHP's error log?
Downloaded the 2.2 package and re-installed. All good for now.
No idea what happened but I'll take it. D'oh!
Thanks for the help!
if you want to give this a try...
http://vanillaforums.org/discussion/31153/tutorial-a-fool-proof-way-to-do-a-vanilla-upgrade-from-2-1-to-2-2
this issue produces a blank screen
http://vanillaforums.org/discussion/comment/235588/#Comment_235588
I may not provide the completed solution you might desire, but I do try to provide honest suggestions to help you solve your issue.
Forum is up but some users are reporting trouble logging in.
Utility/structure reports back:
The following structure changes are required for your database.
update GDN_Role
Role
set Type = 'applicant'
where RoleID = '5';
update GDN_Role
Role
set Type = 'member'
where RoleID = '1';
update GDN_Role
Role
set Type = 'unconfirmed'
where RoleID = '3';
update GDN_User
User
set Permissions = ''
where Permissions <> '';
update GDN_UserAuthenticationProvider
UserAuthenticationProvider
set AuthenticationSchemeAlias = 'GooglePlus'
where AuthenticationSchemeAlias = 'Google+';