Try booting the dvd, when you get to the interactive part of install after the language questions you should be at a point where the X windows has started and open by right click on the desktop a terminal window and create and mount a partition on a slave disk if you have one check format for the device is equal to cxdxs0 or cxtxdxs0(ACPI is enabled), this will be used to store a truss output of ttinstall , i.e:
newfs /dev/dsk/cxdxs0 mkdir /tmp/b mount /dev/dsk/cxdxs0 /tmp/b truss -eaf -o /tmp/b/ttinstall_pid$$.truss answer the install questions. and if you see the error, post a RFE -- This message posted from opensolaris.org