This problem happen to me for third time. I have a db_dump and restore it on trytond but i dont remember the admin user password.
i have to update the salt manually to reset a user password. What do you think about if add to trytond --changepassword=username changepassword of user example: TRYTONPASSFILE=/tmp/pass.txt bin/trytond -d t28 --changepassword admin -- Andres Vargas www.zodman.com.mx