Hi,
I had an email migration that failed badly and I thought it would be a great idea to remove a possibly “bogus node” to get things back on track, as described here : Release notes — NS8 documentation
It was a bad idea : I can’t restart the migration 
I can’t disconnect from the cluster either because “Some apps have already been migrated: it is not possible to disconnect at this point.”
I felt in a loophole. Any idea how to get out of this ?
Txs
I guess that deleting /var/lib/nethserver/nethserver-ns8-migration/environment and /var/lib/nethserver/nethserver-ns8-migration/agent.envcould help ?
then skipping the module that was already migrated ?
Not exactly, see NS7 NS8 migration disaster - #3 by mrmarkuz
So in your case please remove the already migrated apps.
Usually the app shows like never migrated and you can disconnect from cluster, no skipping needed.
EDIT:
The process is explained here: GitHub - NethServer/nethserver-ns8-migration
Thanks.
I deleted the whole folder contents var/lib/nethserver/nethserver-ns8-migration/*
then
Error connecting to NS8: The domain ‘xxxxx.be’ already exists in the NS8 cluster. Please choose a different domain name
Should I delete the domain on NS8 ? It looks like I’ll have to start everything over 
You could try to delete the domain on NS8. If it’s not working I recommend to start over with a fresh ns8.
Looks like it’s working… I hope I’ll be able to reconnect nextcloud.
I’m afraid if nextcloud was deleted it will start a new instance on the ns8
