When I try to access my Odoo 8 application I am redirected to Database Management menu and page "Create a New Database". However, there is a database in the system, I can see it through pgAdmin fine, and it worked all the time until now. As far as I know I have not changed anything.
How I can make Odoo 8 connecting to already present database again as it did before?
Thanks for your help!
You should also check the ownership of the database. If you restore it from psql, make sure you set the owner to your openerp user.
ALTER DATABASE your_db OWNER TO your_openerp_user
DB user & password are either specified from the CLI, i.e.
openerp-server --db_user=openerp --db_password=openerp
or they are specified in the configuration file usually located in :
/etc/openerp/openerp-server.conf
For that we must enter the administrator OpenERP database, one of the facilities provided to us in that menu is to restore the database from a backup, another option is to create a new database. A look created the database on the homepage of OpenERP can select the database with which we work and then insert the username and password.
What I did is I have backed up main database then restored it to a new database called TestA. When I opened Odoo web site, it picked up TestA database. Then I clicked on "Back to Login" option at the top right corner of the page and after that I was offered to chose between the two databases during login. I selected the main one and Odoo loaded successfully.
I had this same issue. I kept getting redirected to the login page even though the database was already created. What I did was change the admin password in the database using pgAdmin. At the page where the database creation is on there is a login option.
It's under the res_user table I just did this. After that I logged in I wasn't prompted with the database again.
Update res_user
Set password = 'your_password'
Where login = 'admin'
来源：https://stackoverflow.com/questions/28857804/openerp-redirected-to-create-a-new-database-page-when-accessing-odoo-applica