I'm trying to switch from 6.0.7_GA_2473.UBUNTU6 to zcs-6.0.7_GA_2473.RHEL5_64.
On Moving ZCS to New Server - Zimbra :: Wiki it says:
Since the operating system is not the same I'm wondering - should I follow:Switch from 32-bit to 64-bit
If your operating system and hostname are the same, but you are switching from 32-bit to 64-bit, follow Network_Edition:_Moving_from_32-bit_to_64-bit_Server (This applies to both the Open Source and the Network Editions).
A. Moving ZCS to New Server - Zimbra :: Wiki "2.3 Switch Operation Systems or Hosts Using rsync"
B. Network Edition: Moving from 32-bit to 64-bit Server - Zimbra :: Wiki