You should use the software update command to extract and install the system files on a storage system.
You can use the software update command to install a software image you have already copied to your storage system, or to copy and install the image from an HTTP server.
The software update command enables you to perform several operations at one time. For example, if you use an HTTP server to distribute software images, you can copy an image from the HTTP server, extract and install the system files, download the files to the boot device, and reboot your system with one command.
For more information about the software update command and its options, see the software (1) man page.