Earlier, if a sysadmin didn't feel like editing the handful of host identity-related files manually, there was the sys-unconfig command.
The new, more modern replacement is sysconfig, which contains three modes:
configureunconfigurecreate-profile
This mode essentially brings up a standard Solaris 11 initial, manual installation screen. It prompts you for the usual things, such as hostname, network configuration, and also root account information. Once the information is validated, it reconfigures the system.
Tip
Warnings
Your only chance to back out of host-level changes is when the initial "Do you want to continue?" type prompt appears. If you do proceed, it will unconfigure various things on the live system before asking you your preferences for the hostname and so on.
Regardless of where you start the program, it will start a new process to ask configuration questions on the system console.
The program claims to create /system/volatile...