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how many run level in solaris?

Answer Posted / sanoopnarayan

Solaris have 8 init states/Run levels


Run Level Description
0 PROM mode. It is used to bring a running system to the OK
prompt, either to turn the system off or to perform a PROM
mode function.
S Single-user mode. If the system is booted into this mode,
only the minimum number of file systems are mounted. Minimal
services are started.
1 Single-user administrative mode. All file systems are
accessible. Minimal services are started.
2 Standard multiuser mode. Generally, all normal services
are started, except the Network File Service (NFS) and any
service that relies on NFS being available.
3 All normal services are started, including NFS and any
service that relies on NFS being available. Run level 3 is
the default run level.
4 Unused or user defined. This run level is not currently
used. Some users define special services to start in this mode.
5 Shutdown mode. Run level 5 performs equivalently to run
level 0, except that it also powers down the system, if
supported by the hardware.
6 Reboot mode. Run level 6 is equivalentl to run level 0,
except that it issues a `boot` command when it reaches the PROM

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