change of ZCS Netowork to Open Source

[orison]

Hi Everybody..

I'm using Network Edition zcs-NETWORK-4.5.10_GA_1575.RHEL4.tgz on Centos 4.5 but now i want use Open Source zcs-4.5.9_GA_1454.RHEL4.tgz.

I ask your, I can install zcs-4.5.9_GA_1454.RHEL4.tgz above of zc-NETWORK ?
I'm not after have problems?

Best regars

Orison San Juan

[mmorse]

What is your reasoning for going 4.5.10 > 4.5.9 ? You should really use the exact same version for this conversion.

Welp, I assume you've already compared the features you will be giving up, weighed what you can afford, talked to sales to get a quote, etc, etc.
Anyways, you essentially install the Open Source edition over the top of your NE install (using the same version number) to keep your data and convert to the FOSS edition.

In addition to any backups you run via zmbackup in NE; please make a backup of your /opt/zimbra first! (and any directories linked elsewhere)
Open Source Edition Backup Procedure - Zimbra :: Wiki
about as simple as you can go is:
su zimbra
zmcontrol stop
switch to root
ps aux | grep zimbra (kill any leftover)
mkdir /backup
rsync -avHK /opt/zimbra/ /backup/zimbra

Of course you can always go back should you decide so later: Moving from Open Source to Network Edition ZCS - Zimbra :: Wiki