Although I have lots of experience using Sun/Oracle Solaris OS, I had not installed Solaris on a physical box prior to 2015. Actually it is easy but not as easy as installing on a X86 server. The first thing that may surprise you is that the server does not have a graphic card so you can not connect a monitor! You have to communicate with the server using a console cable, the same cable that you use to connect to Cisco devices.
Go ahead and connect a console cable to the SER MGT port and if you use Putty on Windows, use the default settings: 9600, 8 bits, No parity, 1 Stop bit, No handshake.
Important: To Avoid booting the Solaris Operating System at Start Up:
-> bootmode bootscript "setenv auto-boot? false"
Type root as user and changeme as password to log in to the Service Processor (SP)
If you need to change the root (or admin) password:
-> set /SP/users/root password
Set an admin user for SP by typing
-> create /SP/users/admin role=Administrator cli_mode=alom
Note: for other commands in SP or how to reset SP consult https://docs.oracle.com/cd/E19350-01/E21356/6_config-booting.html. You may find more at http://docs.oracle.com/cd/E19839-01/820-2181-15/820-2181-15.pdf.
Redirect the host output to display on the serial terminal device:
-> start /SYS
-> start /SP/console
After you start the SP console, the server initialization takes approximately 20 minutes to complete. You will be in System Console or OK prompt. If you do not see ok prompt, simply hit the Enter.
In order to switch back to SP from System Console:
ok #.
And use the following command to go back to System Console.
-> start /SP/console
Now put the Solaris DVD in the DVD drive and run:
ok boot cdrom
Wait for the text-user-interface wizard and follow the steps.