Runlevels in Unix..


 
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# 1  
Old 01-24-2009
Runlevels in Unix..

Hello All,


I'm a new user to HP-Unix, Aix, Solaris. I know something about Linux. I would like to know, how many run levels are there in Unix, Aix & Solaris? As far as Linux is concerned, there are 7 run levels (0-6).

Can some body help me in this, with the brief information about all the run levels?

e.g. Linux -

0 - Shutdown/Halt
1 - Single user mode
2 - Multiuser without networking
3 - Multiuser with networking & NFS
4 - Not Used
5 - Graphical
6 - Reboot.

Is the file for configuration same as in Linux - /etc/inittab ?

Your help is appreciated.
# 2  
Old 01-24-2009
read the manpage of the command "init".
# 3  
Old 01-24-2009
Thank you,

I will try this.
# 4  
Old 01-24-2009
Run levels for Solaris are a little different:

S/s - single-user mode
0 - ok> prompt
2 - multi-user without some network services like NFS
3 - default run level
4 - undefined
5 - shutdown
6 - reboot
# 5  
Old 01-25-2009
Does that mean, the runlevels of HP-Unix & AIX are sme as mentioned above for Linux?
One more thing would like to know, how to boot the server in singlt user mode in HP-Unix?
Thanks the information.
# 6  
Old 01-26-2009
During HP-UX startup you will be asked if you want to interrupt the boot sequence. Type:

Code:
bo pri

Make sure you press 'y' when asked if you want to interact with the ISL. Then type:

Code:
hpux -is

 
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