How do I partition my Indy with current Sarge installer?

[Ralph Aichinger <ralph@mail.pangea.at>]

The Sarge beta install manual says 

.5.1. Partitioning for Mips 
SGI Indys require an SGI disk label in order to make the system bootable
from hard disk. It can be created in the fdisk expert menu.

However current fdisk does not have an expert menu.
x is not listed and choosing x just gives "Sorry, no experts
menu for SGI partition tables available".

There is an option to create a new Sun disklabel ("s"). Is 
this the right thing to do?

TIA
/ralph