I have been playing in my lab with SRM, and forgot to create my DSN connection to the SRM database, no worries I thought, the installation routine allows you to create on during the install.
Well that is only half the story.
Yes you can create your connection. but the install routine does not refresh itself and the only way you can actually get to select the new DSN is to quit the installation and start again.
A right royal pain in the backside, but the moral of the story is to create your DSN’s and Databases before you start to install SRM.