Cannot access topics after upgrade from 1.6.0.beta1 to beta2

Sorry, I did look in it and saw nothing but have removed everything again.

But now I have another problem: How do I properly remove discourse and start over?

I was just doing sudo rm -rf /var/discourse and checked out discourse_docker.git repo again. But I get an error while bootstrapping the container:

2016-04-22 22:52:41 UTC [414-1] discourse@discourse ERROR:  relation "users" does not exist at character 323
2016-04-22 22:52:41 UTC [414-2] discourse@discourse STATEMENT:                SELECT a.attname, format_type(a.atttypid, a.atttypmod),
                             pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod
                        FROM pg_attribute a LEFT JOIN pg_attrdef d
                          ON a.attrelid = d.adrelid AND a.attnum = d.adnum
                       WHERE a.attrelid = '"users"'::regclass
                         AND a.attnum > 0 AND NOT a.attisdropped
                       ORDER BY a.attnum

According to this comment the error seems not problematic for fresh installs. Still confusing.

(I have the full logs for “./launcher bootstrap app” if someone is interested)

Now trying to go back to the old version:

./launcher rebuild app > rebuild.log 2>&1

using v1.6.0.beta1 and then this version is correctly showing up but the backup from before v1.6.0.beta2 (i.e. v1.6.0.beta1) somehow does not succeed. It says the current version 20160420172330 vs. restored version 20160329101122 (release date of v1.6.0.beta1)