[Samba] Upgrade from samba 3.4.8 to latest

[Lee Brown]

Hi,

As the subject suggests, I need to migrate a simple samba 3.4.8
configuration to the latest 4 stable version.

My only concern is moving the samba .tdb files, can i just backup/restore
using tdbbackup, using this technique
<https://wiki.samba.org/index.php/Back_up_and_Restoring_a_Samba_AD_DC#How_LDB_and_TDB_files_can_be_backed-up.2Frestored>
(Backup and Restore a Samba AD DC), or do I need to do something different?

Thanks -- lee