I recently did a fresh install of OC 9.1.3 onto ubuntu 16.04 w/ mariaDB cluster. The install seemed to go fine as no errors were reported at all. The database was created and verified. The initial admin was created as well.
Once the install was done, I got the login screen and tried to login as admin. No errors were presented, but seems I always keep getting redirected to:
Thank you! You actually pointed me in the right direction!! I use memcached for php by default and turned this off then the page was displayed, so I'm trying to get this working with the existing memcached.. thank you!
Most likely your PHP environment for session handling is broken / wrong
configured. Even you're not getting the "CSRF check failed" message its most
likely one of the following configuration / permission issues: