Quick question. i have a windows 2008R2 domain controller that i added to my current 2003 AD recently. One thing i missed before doing to dcpromo was installing SP1 on the R2 machine.
We have a pretty simple environment. currently 3 2003 DC's and 1 2008 DC. Forest and domain are in 2003 mode. One forest and one domain. If i update to SP1 on the R2 machine, does this change a lot of AD stuff that i should be aware of, especially with 2003 DC's in the mix?
The R2 machine doesnt have any other software installed (except mcafee viruscan). It's stricly a DC. I've also transferred all FSMO roles to it.