Please help: Complicated upgrade to NE

[sprocket]

Hi:

I've got a rather complicated upgrade to perform and just wanted to verify steps prior to doing it.

I've currently got Zimbra Open Source Edition 5.0.1 GA running on Centos 5

My goal is to get to Zimbra Network Edition 5.0.6 GA running on Ubuntu 6.0.6 LTS x86_64

I've got one machine, but I have multiple external USB backup drives.

After reading many posts on the fora, I'm not sure how to accomplish this. Should I do an in-place upgrade to NE, backup everything, install the new OS & 64-bit Network edition, restore and then upgrade to the latest version?

Any help would be greatly appreciated.

[phoenix]

I'd suggest you upgrade your current configuration then follow the details in this document: Network Edition: Moving from 32-bit to 64-bit Server - Zimbra :: Wiki