[Samba] Restore fails on new server

[Rowland penny]

On 08/08/2020 21:27, Peter Pollock via samba wrote:
> I had to replace a server. Backed up the entire system using Clonezilla,
> created the partitions on the new server exactly as they were (hardware is
> identical) and then restored the backup onto the new server.
>
> On attempting to boot, I get a couple of ACPI errors and then an error
> connecting to a data drive that holds no system files and then Ubuntu
> panics and puts me into a recovery mode with no networking or dns..
>
> Any ideas where I can even start looking for what's going on?
>
> The only red lines in journalctl are about the acpi errors and not being
> able to mount the drive which previously held the user data.
>
> The hardware is identical, I know the backup is good because I've restored
> it to the original server before and it was fine - and that's what confuses
> me. I restore onto one box and it works perfectly, I restore onto another,
> identical, box and it fails.

Are we talking about a Samba AD DC ?

If so, is this the only DC?

If it is a DC and there is another DC running, do not restore it from 
your backup. Demote the server (forcibly if necessary), then rejoin it 
to the domain.

Rowland