Need advice/direction on migrating mial from 10.3 to 10.4 server.

[Demani]

Mail service has become completely unstable on a 10.3 server we took over (the previous admin had the server rebooting three times a day to keep it up- something was definitely up). So we’ve been directed to move to the 10.4 server platform (we already had the unused license) this weekend.

Here is my plan of attack for the 10.4 server:
-create all the user accounts (posted in OD forum about exporting/backup/import/restore)
-turn on mail service to make sure its operational for users. turn it off again.
-copy the /var/spool/imap directory to the new server’s matching location.

So here are my questions:
1) the Mail store should be portable, correct? Since both servers use cyrus I should just need to move the mail store from one machine side to the other
2) How do I make sure that I’ve got everything in the to be delivered cache? Where is that, and can I just move that over to the same location on the new server?
3) any other issues I should be aware of?

Thanks for any assistance.

[maccanada]

Yeah, a few things…like the owner of the directories has changed. It’s all covered in the Migration doc

[Demani]

Well, I followed the Migration directions to the letter (or what I assume was the letter). Alas, I still ran into some issues- probably a result of dirty files that caused the original server to go belly up.

I migrated my users over (still need to set passwords). Each showed that mail service was enabled.
I made all my settings changes, and saved them.
I then migrated the database dir and the mail stores over (used ditto- all permissions appear correct).
But when I opened the Server Manager I saw no accounts listed- though the databases are shown as having a 68MB size, and the mail stores as being 8GB.
I migrated the mail stores and mail databases as per the instructions, but got a DBERROR inthe console.

Some more searching produced thislink which gave me account listings again in the SA. The DB showed up as only 18MB after this.
Finally copying in the queues from Postfix on the old machine made sure everything was up to date.

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