hui

Can anybody let me know the Run Levels in Solaris 9.0

If you are referring to init states then here they are:

* 0: The system is at the PROM monitor (ok>) or security monitor (>) prompt. It is safe to shut down the system when it is at this init state.

* 1, s or S: This state is known as "single-user" or "system administrator" mode. Root is the only user on the system, and only basic kernel functions are enabled. A limited number of filesystems (usually only root and /usr) are mounted. This init state is often used for sensitive functions (such as kernel libc patches) or while troubleshooting a problem that is keeping the system from booting into multiuser mode.

* 2: Multiple users can log in. Most system services (except for NFS server and printer resource sharing) are enabled.

* 3: Normal operating state. NFS and printer sharing is enabled, where appropriate.

* 4: Usually undefined.

* 5: Associated with the boot -a command. The system is taken to init 0 and an interactive boot is started.

* 6: Reboot. This state takes the system to init state 0 and then to the default init state (usually 3, but can be redefined in the /etc/inittab file).

This was taken from this website:
Sun init States

Looks like it is pretty standard *nix init states