i found this post: Nextcloud Join Script failed
also stopping at the SAML… so wondering, if SSO or some domain/DNS stuff is the reason to fail?
I looked also into:
https://docs.software-univention.de/manual/5.0/de/domain-ldap/saml.html
an added the ucs-sso cert to my browser and followed the instructions to make the browser accepting things.
I reran the join-script, but nothing changed, still fails.
I also though if running the join from ssh directly without using the browser session would do the magic, but also here, same failure…
I cannot call https://ucs-sso.domain this is not resolved from my browser/server session.
What to do? SSO is the cherry on the cake, but a bit annoying to break initial installations/first steps…