Hi!
Several components have been added after 10.0.1, so while upgrading make sure you have
selected all components, also most of the answer that is required by the installer are set
by default and picked from the previous installation until there something specific, just try it
its simple mostly. The installation would be interactive, it would not just be run it and forget
it type .
Take a look into the installation guide and see the Upgrading guidance provided there.
Thanks,
Subir