Booting for Oracle Solaris (Overview)

Starting with the Solaris 10 10/08 release, the Oracle Solaris SPARC bootstrap process has been redesigned to increase commonality with the Oracle Solaris x86 boot architecture. The improved Oracle Solaris boot architecture brings direct boot, ramdisk-based booting, and the ramdisk miniroot to the SPARC platform. These enabling technologies support the following functions:

• Booting a system from additional file system types, such as a ZFS file system.

• Booting a single miniroot for software installation from DVD, NFS, or HTTP

Additional improvements include significantly faster boot times, increased flexibility, and reduced maintenance requirements.

As part of this architecture redesign, the Oracle Solaris boot archives and the bootadm command, previously only available on the Oracle Solaris x86 platform, are now an integral part of the Oracle Solaris SPARC boot architecture.

Although the implementation of the Oracle Solaris SPARC boot has changed, no administrative procedures for booting a SPARC-based system have been affected. Oracle Solaris installations now include the ability to install from a ZFS file system, but otherwise have not changed for the new boot architecture.