Zimbra Version 4.0.4 to Zimbra 4.5.6_GA Migration

[skeeve]

Hey Guys,

I have an older server running Version 4.0.4_GA_457.RHEL4 Nov 15, 2006.

I have a new fresh just built server running Version 4.5.6_GA_1044.RHEL4 Jul 6, 2007.

What is the best way to go about moving all settings - server configuration (theme graphics, settings, etc) and also moving all users to the new box.

Unfortunately due to running out of hard drive space on the old server it wasn't possible to 'upgrade' it.

Basically I want to get everyone to the new server and do away with the old - without losing anything.

...Skeeve

[jholder]

Do you have custom skins? You'll need to back those up.

Also, what OS are you migrating from/to?

generally, you can just zip up /opt/zimbra and move it over following the wiki instructions.

[skeeve]

Originally Posted by jholder

Do you have custom skins? You'll need to back those up.

Also, what OS are you migrating from/to?

generally, you can just zip up /opt/zimbra and move it over following the wiki instructions.

Are you serious? I am migrating between different versions, surely I cant just grab /opt/zimbra and move it.

I am going from a CentOS4.5 physical box to a CentOS5 VM Server on very big hardware.

...Skeeve

[jholder]

Yup. Serious.

You'll need to install your old version of zimbra on the new server 1st, then rm it, and move your new one in.

It's very easy. It doesn't come without hiccups tho, but we'll get to those when we get there

more here
Open Source Edition Backup Procedure - ZimbraWiki

[skeeve]

Originally Posted by jholder

Yup. Serious.

You'll need to install your old version of zimbra on the new server 1st, then rm it, and move your new one in.

It's very easy. It doesn't come without hiccups tho, but we'll get to those when we get there

more here
Open Source Edition Backup Procedure - ZimbraWiki

OK, you missed what I said. I have a new server WITH 456 already installed. And this isnt the open-source version, it's the licensed version.

...Skeeve

[jholder]

What did I miss? Do you have people on the new box already?

[skeeve]

Originally Posted by jholder

What did I miss? Do you have people on the new box already?

You referred me to the Open Source version documents. Unless they are basically the same.

OK. Maybe it isn't clear to me.

But, even though I have built the 4.5.6 server, your suggestion I just delete it - to rebuild the box again? Then just copy across the /opt/zimbra directory. As far as I can see there is mySQL databases as well - unless Zimbra doesn't use them? Then just copying files could be very messy.

Surely there is an easier (less dangerous) migration path/tool to do this.

...Skeeve

[brained]

You want to migrate first, then upgrade.

• Install the exact same 4.0.4 on the new server
• Rsync the /opt/zimbra over from the old
• Re-run the 4.0.4 install script on the new server
• Start up the 4.0.4 on the new server and make sure it's running properly (LDAP, MySql, message store, etc) Really make sure - you don't want to try to upgrade a broken system
• Shut Zimbra down and then -
• Then run the install script for 4.5.6

[jholder]

Ah, I see
So on the network edition, you can backup all the mailboxes.

I did miss the first time that you are on the network edition.

General info is here: Network Edition Backup Procedure - ZimbraWiki

Some considerations should be
1) DNS-make sure that mx records get transferred to the new box.
2) Move over (once you've backed up) the entire /opt/zimbra/backups, if that's where you backed up. If not, move your other location
3) make sure the files are Zimbra user accessable.

and if something goes wrong, let us know

john

[jholder]

Originally Posted by brained

You want to migrate first, then upgrade.

• Install the exact same 4.0.4 on the new server
• Rsync the /opt/zimbra over from the old
• Re-run the 4.0.4 install script on the new server
• Start up the 4.0.4 on the new server and make sure it's running properly (LDAP, MySql, message store, etc) Really make sure - you don't want to try to upgrade a broken system
• Shut Zimbra down and then -
• Then run the install script for 4.5.6

Brained is 100% correct on the Open Source edition

Some of us (brained included) have assisted in many open source migrations. Forgive us for thinking that's what you have

john