Re: sql server 2008 setup failure

Also FWIW, from
http://technet.microsoft.com/en-us/library/ms143506(SQL.100).aspx

Installing SQL Server on a Domain Controller

For security reasons, Microsoft recommends that you do not install SQL
Server 2008 on a domain controller. SQL Server Setup will not block
installation on a computer that is a domain controller, but the following
limitations apply:

-On Windows Server 2003, SQL Server services can run under a domain account
or a local system account.

-You cannot run SQL Server services on a domain controller under a local
service account or a network service account.

-After SQL Server is installed on a computer, you cannot change the computer
from a domain member to a domain controller. You must uninstall SQL Server
before you change the host computer to a domain controller.

-After SQL Server is installed on a computer, you cannot change the computer
from a domain controller to a domain member. You must uninstall SQL Server
before you change the host computer to a domain member.

-SQL Server failover cluster instances are not supported where cluster nodes
are domain controllers.

-SQL Server is not supported on a read-only domain controller.


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