how many run level in solaris?
- 19 Answers
- 50708 Views
- HP, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / raja.chinna
Totally there are 9 run levels.
init -0 prom stage ok
init -s single user mode with out network
init -S single user mode with network
init -1 single user mode with non system disk
init -2 multi user mode with out nfs
init -3 multi user mode with nfs
init -4 currently not in use
init -5 halt the system
init -6 reboot the system
Bydefault sys is booting upto runlevel 3
In reverse way (3,2,1,S,s,0) it is shutting down
| Is This Answer Correct ? | 74 Yes | 27 No |
Answer / 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
| Is This Answer Correct ? | 20 Yes | 2 No |
Answer / johnny agarwal
In solaris 10 there are 8 run level
init -0 To shut down the operating system so that it is
safe to turn off power to the system
init -s or S To run as a single user with some file systems
mounted and accessible.
init -1 To access all available file systems. User logins
are disabled
init -2 For normal operations. Multiple users can access the
system and all file system. All daemons are running except
for the NFS server daemons
init -3 For normal operations with NFS resources shared.
This is the default run level for the Solaris OS.
init -4 Not configured by default, but available for
customer use
init -5 To shut down the operating system so that it is safe
to turn off power to the system. If possible, automatically
turns off power on systems that support this feature.
init -6 To shut down the system to run level 0, and then
reboot to multiuser level with NFS resources shared (or
whatever level is the default in the inittab file).
| Is This Answer Correct ? | 25 Yes | 10 No |
Answer / vinodh
In solaris, we have 9 runlevels !!
1. init s
2. init S
3. init 0
4. init 1
5. init 2
6. init 3
7. init 4
8. init 5
9. init 6
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / shahid
8 runlevels
0- powered down state - to shut down the os so that it safe
to power off the system
s or S - single user state -to run as single user with some
file systems mounted and accessible
1- administrative state - to access all file systems, user
logins are disabled
2- multiuser state
3- multiuser states with nfs resources shared - default
runlevel for solaris os
4- alternative multi user
5- powered down state
6- reboot state
| Is This Answer Correct ? | 5 Yes | 1 No |
Answer / spyder
Better look at the sun docs there are everything about
solaris :)
http://docs.sun.com/app/docs/doc/817-0798/6mgisnq09?l=en&a=view&q=run+levels+solaris
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / manas ranjan pradhan
Totally there are 9 run levels.
init -0 prom stage ok
init -s single user mode with out network
init -S single user mode with network
init -1 single user mode with non system disk
init -2 multi user mode with out nfs
init -3 multi user mode with nfs
init -4 currently not in use
init -5 halt the system
init -6 reboot the system
Bydefault sys is booting upto runlevel 3
In reverse way (3,2,1,S,s,0) it is shutting down
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / maz
Run Levels
A system's run level (also known as an init state) defines
what services and resources are available to users. A
system can be in only one run level at a time.
The Solaris OS has eight run levels, which are described in
the following table. The default run level is specified in
the /etc/inittab file as run level 3.
Table 17–2 Solaris Run Levels Run Level
Init State
Type
Purpose
0 Power-down state Power-down
To shut down the operating system so that it is safe to
turn off power to the system.
s or S Single-user state Single-user
To run as a single user with some file systems mounted and
accessible.
1 Administrative state Single-user
To access all available file systems. User logins are
disabled.
2 Multiuser state Multiuser
For normal operations. Multiple users can access the
system and all file system. All daemons are running except
for the NFS server daemons.
3 Multiuser level with NFS resources shared Multiuser
For normal operations with NFS resources shared. This is
the default run level for the Solaris OS.
4 Alternative multiuser state
Not configured by default, but available for customer use.
5 Power-down state Power-down
To shut down the operating system so that it is safe to
turn off power to the system. If possible, automatically
turns off power on systems that support this feature.
6 Reboot state Reboot
To shut down the system to run level 0, and then reboot to
multiuser level with NFS resources shared (or whatever
level is the default in the inittab file).
| Is This Answer Correct ? | 3 Yes | 2 No |
Answer / ashish
There are 8 Run Level's in Solaris.
S, s
Single user mode. Doesn't require properly
formated /etc/inittab. Filesystems required for basic
system operation are mounted.
0
Go into firmware (sparc)
1
System Administrator mode. All local filesystems are
mounted. Small set of essential system processes are
running. Also a single user mode.
2
Put the system in multi-user mode. All multi-user
environment terminal processes and daemons are spawned.
3
Extend multi-user mode by making local resources available
over the network.
4
Is available to be defined as an alternative multi-user
environment configuration. It is not necessary for system
operation and is usually not used.
5
Shut the machine down so that it is safe to remove the
power. Have the machine remove power, if possible.
6
Reboot
| Is This Answer Correct ? | 2 Yes | 2 No |
Cannot open '/etc/path_to_inst'"
how to stop the process using process name
How can you see the adpters information?
What are configuration files and to configure it in VCS
Default path for patches
How to review multiple MAC Addess in Solaris?
How to find the kernel bit version or architecture
Iam facing an issue like below, any help why this is caused? $ ls -l /etc total 184 -rw-r--r-- 1 root other 3 Nov 28 09:35 abc1 -rw-r--r-- 1 root other 3 Nov 28 09:35 cb -r--r--r-- 1 root root 8358 Nov 28 19:04 ptmp -r-------- 1 root sys 5055 Nov 28 19:04 stmp -r--r----- 1 root root 76828 Nov 28 09:38 sudoers
How to find the network card speed
After creating user account successfully it shows 64 blocks.what for these 64 blocks are used and what information is stored in this blocks?
Which command is used to backup and restore solaris file system?
How many controllers in 3510 storage.
Solaris Commands 
