Zimbra Domain Controller Upgrade

[Flancer]

Has anyone implemented a domain controller using Zimbra 4.5.5 or above and then upgrade to Zimbra 5.0.x? I am refering to the Open Source Edition.

I am looking to perform a similar upgrade process but would like to know what are the things I should watch out or prepare for.
Hope someone can help out

[uxbod]

Hi,

Do you just mean the upgrade to ZCS 5.0.X ? If so then make sure you have a cold backup, download the correct O/S version, unpackage it and then run ./install.sh.

Is that what you are after ?

[Flancer]

Do I need to remove the previously installed extensions especially zimbra_posixaccount and zimbra_samba extensions for Zimbra Admin before I begin the upgrade?