Migrate Samba 4 Active Directory server to new hardware

I migrated my old Proxmox 3.0 KVM based Samba 4 server into a new Proxmox 4.0 LXC container. Luckily migrating Samba 4 is pretty straighforward.

1. Backup the following directories
1. sudo tar cvzf back.tgz /etc/samba /var/lib/samba
2. Turn off the old VM (or computer)
3. Create a new VM with the same IP and hostname in the new hardware host
4. Move the backup.tgz to the new VM
5. Extract on the root
1. cd /
2. sudo tar xvzf /home/user/backup.tgz
6. Now install samba on top of it
1. sudo apt-get install samba
7. When prompted to keep your old smb.conf file choose 'keep'
8. Restart