512 MB minimum (This minimum has not been tested extensively yet.)
Disk space
Recommended size
is at least 10 GB.
Multiboot capability
If you are installing OpenSolaris on a
system that will have more than one OS, use the fdisk command or
a third-party partitioning tool to create a new partition or to make adjustments
to preexisting partitions. See Partitioning a Multiboot System.