sudo gitlab-rake db:migrate:down VERSION=$version

INSERT INTO schema_migrations VALUES ('$version[0]'), ('$version[1]'), ...;

I ran the first command in the snippet, then took those migrations and for each ran: ``` sudo gitlab-rake db:migrate:down VERSION=$version ``` This reverted one migration that shouldn't have been there: https://gitlab.com/gitlab-org/gitlab-ee/blob/master/db/migrate/20180515005612_add_squash_to_merge_requests.rb This is a backport from CE to EE, but reverting the CE migration will remove the column. This should be excluded. Doing it this way is also very slow as it invokes `gitlab-rake` 197 times. It might be easier to do this from a console so we only load the app once. - - - Having done that, I installed the 10.8.4-ee package. The migrations on install failed because we squashed some migrations. To fix that, I ran the second command in the snippet, and then rang this in `gitlab-psql`: ```sql INSERT INTO schema_migrations VALUES ('$version[0]'), ('$version[1]'), ...; ``` - - - The app now booted but failed due to a missing dependency. I don't know what caused this but a `gitlab-ctl stop` followed by `gitlab-ctl` start fixed it. From there, the app worked for very basic functionality. I didn't test anything advanced, and there were a few small display issues. The built-in prometheus was also down, which I didn't debug yet.