Category : Configuration
Error : False
UpgradeBlocking : False
Message : The [SharePoint] web application is configured with claims
authentication mode however the content database you are
trying to attach is intended to be used against a windows
classic authentication mode.
Remedy : There is an inconsistency between the authentication mode of
target web application and the source web application.
Ensure that the authentication mode setting in upgraded web
application is the same as what you had in previous
SharePoint 2010 web application. Refer to the link
"http://go.microsoft.com/fwlink/?LinkId=236865" for more
Convert-SPWebApplication -Identity http://pointshare.pl -From Legacy -To Claims -RetainPermissions