[Samba] Upgrade/migrate, lost workstation trusts

[Dave Beach]

> What's not great is that the workstation trusts appear to have broken, and I cannot leave/rejoin the domain (not that that's my preferred way of solving the problem). I think I have two possibly unrelated problems:

> 1) I want to restablish the workstation trusts such that user accounts and files on the workstations (all Win7) are not affected by the Samba upgrade; and

> For #1, I wonder if I'm having a SID problem. Is there a decent "how-to" guide that covers both migration and upgrading Samba, confirming what files I need to preserve and how to validate that the SIDs are the same?

So, net getsambasid and net getlocalsid both return the same value, which matches the SID in the backend LDAP database. So, maybe not a SID problem after all.