Problem build initrd file

[Michael ODonnell]

Did you start with a source tree that was already known
to be configured & buildable for the machine in question?
If not, then kernels built therein are unlikely to work for
you with or without those new LSI drivers.  Once you've got
a tree that you can build working kernels in I'd recommend
cloning that tree and working in the clone so you don't
hork the original tree, and specify a different version
string in the clone so you don't blow away the kernels
built from the original.  Then you can add the LSI drivers
and experiment with configuring and building them.  BTW, I
didn't see anything in your message showing a config step...