In Webmin->Cluster->Cluster Users and Groups
If you select "All missing users", "All missing groups", "Create home directories","Copy files to home directory" and "Create user in other modules" you will get the following error:
"couldn't create home directory : No such file or directory"
In every case where you have a user who has been created by virtualmin and therefore has a home directory under the home directory of the virtualmin hosting account.
For example - the /home/examplesite/ user is "examplesite". Several email/ftp accounts have been created by "examplesite" for their user base. These look like this:
/home/examplesite/homes/user1/
/home/examplesite/homes/user2/
/home/examplesite/homes/user3/
..etc
These users all appear in the users list and the Synchronize Servers module tries to re-create the users (user1, user2) but is unable to find the home directory because, I think, it is looking here: "/home/user1" instead of here: "/home/examplesite/homes/user1".
I hope this makes sense. Because this has to do with disaster recovery/backup, and seems like an intuitive part of the webmin/virtualmin package - I've placed this at a "high" level.
Please advise...