> 1. Solaris是否真的需要2个主分区
是！
除了Solaris分区之外，还要一个x86 Boot分区，或者叫IA引导分区。
详见：Solaris 8 (Intel 平台版本)安装指南
ftp://192.18.99.138/806-2586/806-2586.pdf
> 2. bootstar是否可以用
我没试过，因为我有2个硬盘（装了8个系统，8-D）
但至少它的主页上是这么说的：
The bootmanager BootStar manages two partition tables:
? The master boot record partition table
? The BootStar partition table
The master boot record partition table is a table describing the subdivision of the harddisk into partitions. This table has been defined since the advent of harddisks during the beginning of the 80s and is absolutely required by all operating systems. This table can encompass up to four primary partitions.
The bootmanager BootStar manages a second partition table internally (invisible to other programs / operating systems) with up to 15 entries. This table is called the "BootStar partition table".
~~~~
While the computer is booting, up to four entries are copied by the bootmanager BootStar with the aid of the bootprofiles. These entries are copied from the internal BootStar partition table to the master boot record partition table.
The bootmanager is located on the harddisk on the first cylinder ("track 0"). This location is used by a few harddisks and bootmanagers. Therefore, the capacity of your harddisk is not limited by the bootmanager BootStar.
详见http://www.star-tools.com/bootstar/english/manual/bbackground.html
