Run Levels in Solaris 9.0

How can we check the current Run level in Solaris? What are the different run levels in Solaris 9.0?

Questions by hgaurh   answers by hgaurh

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hanumesh

  • Apr 28th, 2007
 

there are 8 run level sin solaris

S /s => Single usermod
1 => Single usermod
0 = Open boot Program
2 => multi usermod without NFS  GUI mod
 3=> default  lt run level with GUI mode
4 = not implemented
5 = shut down
6 reboot

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hanumesh

  • Apr 28th, 2007
 

 Who - r will display the run level in solaris

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jaykanthk

  • Nov 7th, 2007
 

There are 8 Run Levels in solaris.INIT 0 - Go to OK promtINIT s - Single usermode without Networking support and with root filesystem.INIT S - Single usermode with Networking supportINIT 1 - Single usermode with Non-system Disk.INIT 2 - Multi usermode without NFSINIT 3 - Multi usermode with NFSINIT 4 - Currently Not usedINIT 5 - Shutdown (or) Poweroff INIT 6 - Reboot (or) Restart.

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A run level defines the operations of solaris ,including what resources and services are available to users .you willl also here run levels called states or init states

0   : stops all services ,terminates all process, and umounts all file systems

S(or)s: single user state .only root is allowed to log in,and all logged-in users are     logged out

1: single-user state .logged -in -users are allowed to remain logged in

2: multiuser state .all file systems are mounted ,but NFS is not started

3: multiuser state with NFS .all file systems are mounted ,and the NFS deamon is started

4:alternative multiuser state : not currently used

5: power-down state

6:reboot : to reboot machine in to the default run level

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