Is the only way to do this through buying the Data Direct odbc drivers? That is a little cost prohibitive, and it is frustrating that althought microsoft has released java direct drivers for linux, it does not appear that Cognos is using them, or have I missed something in my configuration.
Even if you did use the M$ drivers, you'd only be able to connect your Content Store that way, while all your ODS and DW would still not be accessible, because that data exchange occurs over a native client. There is a reason why M$ doesn't like Linux, you know ... ;D