How can migrate Zimbra 3.1.4 in Debian 3.1 32-bit to 5.0.4 in Ubuntu 8.10 64-bit.
Reading in this forum I have an idea, but I don't know if this is possible:
1º Install in other machine Ubuntu 5.04 (because is almost the same version as Debian 3.1) and the same version of Zimbra that i have in the old machine.
2º Make a backup of my old Zimbra server, and use it in the new machine.
3º And then upgrade Zimbra to version 4.5.11.
4º Upgrade Ubuntu to 8.10 32-bit.
5º Upgrade to 8.10 64-bit.
6º Upgrade Zimbra to 5.0.4.
I need some help to know if that idea is right or I must think another solution.