It is an installation of NS6 on new Centos, upgraded to NS7
Maybe I should try again a clean install from the iso with the restoration of parameters and data. But I could not make it last time
This make it an entirely different league of experience, to me.
If the “source” installation is fully upgraded/updated, you could roll out this procedure.
The difference is that “old setup” is with 128Gb disk, new setup is with 500gb disk.
Remember to delete all the partitions on 500gb disk before install NethServer from USB/DVD
Also, for the next support request, consider to fill the first post with more information. Not everyone could know or guess your current installation 
OK, I keep you posted. Thank you
Clean install, restore config, and still no users and no software reinstalled 
Shall I restore data to get something?
I could get back my users and groups thanks to:
But no application reinstalled
Is the NethServer able to reach the update servers?
On config restore screen, did you enable “Reinstall packages”?
Yes, of course
After install… did you run an software update before restoring configuration?
Yes, as advised. And I rebooted
Well… strange for the “software”. Configuration could not hold user data.
Time to restore the data, IMVHO. You should find the backup procedure working AND the restore point available.
Data restore ongoing
I ran out of tea for sipping time…
After data restore, still no application. I reinstalled them, some work, some not. Sogo is fine, Nextcloud gives the following error:
“Internal Server Error
The server encountered an internal error and was unable to complete your request.
Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.
More details can be found in the server log.”
But the main problem i that I cannot connect to Cockpit anymore:
“Internal error in login process”
I try to check the logs, but I would need help for being efficient…
Does your setup have an NSDC container? If the answer is yes, look for this command from shell/ssh systemctl status nsdc -l
you can start NSDC container with systemctl start nsdc.
No, I don’t think so. Where would that come from?
NSDC is the “component” that allow NethServer to “act” as AD domain controller.
No, I don’t have an AD, just local LDAP
It refers to an older version, but might help you to understand if LDAP server is running or not.
Also, please, post the output of yum update