So, I have unsuccesfully tried to update ERPNext v6 to v7 and while I find a solution to that, I have tried the following:
I used mysqldump to copy the entire v6 database to a .sql file, and then I restored it to the ERPnext v7 fresh installation database. Naturally, just substituting the database, did not work since I figured out that there are more tables in v7 db than in v6 db.
However… the thought occurred to me, what would happen if you do a mysqldump per table to a .sql file from the working v6 database, and then load the tables to their corresponding tables in the ERPNext v7 database. In other words, only replace the data in the tables coming from v6. Would that work?
I have no problem copying the files to their proper private and public directories.