When upgrading v5.3 to 6.0, I enter the admin username/password that I access v5.3 from, but I get Password Fail message when upgrading to postgres DB and not SQL.
The user credentials it prompts you for are the postgreSQL credentials. This was the database password you entered when you installed the software. Also if you are running the Avalanche 6.0 install on a machine other then your 5.3 install you will need to allow remote connection into your postgreSQL database. This is described in the pre-install documentation here: http://help.wavelink.com/docs/help/en_US/AVA_PI/6.0/Default.htm#Avalanche/Install/postgreSQLRemoteAccess.htm
Retrieving data ...