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I am in the process of upgrading my Exchange 2019 host's operating system from Windows 2019 to 2022 through a new virtual Windows 2022.
I have installed a new Windows 2022 virtual server, updated it and installed all prerequisites for Exchange 2019
I have followed your article:
https://www.alitajran.com/install-second-exchange-server-in-domain/
but receives the following error “The Mailbox server role is already installed on this computer”:
I need a hint :-)
Thanks in advance
If you are doing an in place upgrade of the operating system on an Exchange Server, that is not supported.
I don't do that. I have installed a new Windows 2022 and on this I am trying to install a second Exchange 2019 mailbox, but without success
Ok, because you said "I am in the process of upgrading my Exchange 2019 host's operating system from Windows 2019 to 2022 through a new virtual Windows 2022."
So this is a fresh Windows installation and Exchange was never installed on it? Its not cloned or anything like that?
Yes, that's correct, fresh install of windows 2022 and fresh install of new mailbox but the mailbox are the second mailbox on the domain
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Hi,
Welcome to Microsoft Q&A community!
Ensure that you have prepared the Active Directory schema, AD, and domains before running the setup. You can do this by running the following commands:
Setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms
Setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms
Setup.exe /PrepareDomains /IAcceptExchangeServerLicenseTerms
You can refer to:https://learn.microsoft.com/en-us/Exchange/plan-and-deploy/prepare-ad-and-domains?view=exchserver-2019
Check FSMO Roles: Verify that the Domain Controller (DC) in the same site as the Exchange server is the schema master. If not, you may need to run the preparation commands in the site where the schema master resides or move the FSMO roles to the DC in the same site as the Exchange server.
Let me know if you need further assistance or if there's anything else I can help with!
Do I also have to do this when it is exchange 2019 mailbox no. 2. There is already an Exchange 2019 mailbox on the domain
Server at the red arrow is a new virtual Windows 2022 where I would like to install Exchange 2019 Mailbox. The server at the blue arrow runs on Windows 2019 and must be switched off when the new server is running
In the url I have in previous posts it says the following:
I have solved the problem and would like to close the case :-) Thank you for your comments