I have ML on my internal HD. In order to not destroy anything on it, I made a new clean install of Mavericks on external HD instead of upgrading ML.
Both OS start by Chameleon, each with the corresponding one (ML via Chamaleon on internal HD, Mavericks via external HD)
Copying Mavericks install from external HD into a new separate partition in internal HD is not an issue.
What do I have to do in order to have Chamaleon on internal HD baing able to launch the so copied Mavericks on internal HD ?