[Freeipa-users] "missing attribute sn" error on migration

Hi everyone, To create a nice new proper domain in CentOS8 (with a new name and so), I use "ipa migrate-ds" on a fresh installed Centos8 server, to retrieve entries from my current domain in CentOS7 : ipa migrate-ds ldap://my_current_server:389 --user-container=cn=users,cn=compat,dc=ipa,dc=math --bind-dn="cn=Directory Manager" --user-objectclass=posixAccount --group-container=cn=groups,cn=compat,dc=ipa,dc=math --group-objectclass=posixGroup But "ipa migrate-ds" fails with this message for each user : xxx: missing attribute "sn" required by object class "organizationalPerson" with a final : No users/groups were migrated from ldap://...:389 I try with and without --with-compat option, and with ipa-compat-manage enabled and disabled. But when I look at ldap entries on the server in production, I see however a sn record (containing the last name) for each user. So where is the bug ? Thanks, -- Jacquelin Charbonnel - (+33)2 4173 5397 CNRS Mathrice/LAREMA - Campus universitaire d'Angers