My old e-smith box was v 5.x. I actually forgot exactly which version it was running but I think it was 5.0. I lost (probably threw out) the original install CD. I wanted to upgrade to 6.0. No real good reason except to stay current in case I really need to upgrade in the future.
This machine is my home email server. It only has 3 accounts at the moment. Only about 4MB of data.
I have 2 nearly indentical machines to use for e-smith so I can experiment with the other machine without risking all of my email (and my wife's and daughter's, I'll be dead if I lose those accounts!)
I had a 5.1.2 CD so I installed that on the empty box. I then did a desktop backup from the old server and was able to successfully restore to the new one.
I tried to upgrade to 6.0 on the new box but it just would not work. There were never any errors during the upgrade but I could never connect to the Net after the upgrade. I tried changing a lot of settings but never had any success.
I might have been able to go from 5.0 to 5.6 without the 5.1.2 step, but I'm not going to go back now and find out!
Tonight I tried the following, and it worked.
1. Install 5.1.2 fresh on the 'empty' machine.
2. Do a desktop backup from my 'production' server.
3. Restore data on 'new' server. I changed the IP address before the reboot so I could run both machines at the same time. Other than IP machines would be identical. I've now done an upgrade from 5.0 to 5.1.2.
4. Upgrade new machine to 5.6. It works, I can connect to the Net and send/receive email.
5. Upgrade from 5.6 to 6.0. It works! Now I have a totally upgraded system.
Moral of the story, if you try to upgrade from too old of a version to the most current you might have problems. You might have to upgrade through several versions to step up to the current one. Having two machines makes this much easier.
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