09-29-2008
Run Level 1, S and small s
Hi Experts,
A stupid question for experts
!!
What is the difference between run level ‘1', runlevel ‘S' and small ‘s'.
As per my understanding the difference between S and 1 is that in case of ‘S' it only going to mount the critical file system which ideal should be / , /var, /usr , however while testing I was able to see /export/home also in the df -h.
Please enlighten me
Regards
M
10 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
When the solaris 8 have come up, which command can find out the current run-level?
thanks. (2 Replies)
Discussion started by: nianzhe
2 Replies
2. Solaris
Dear Friends..!!
i am quit confused about the SOLARIES RUN level that is 0 . 1 or s S ...
please let me know the diffirence between these run level ... 0,1 and s S...
have a great day
Uday naikwadi (1 Reply)
Discussion started by: udayn
1 Replies
3. SuSE
Hello,
I recently updated a test system from Suse 8 to 9.3. Now our runlevel services program doesn't work, but works fine on our other 9.3 boxes.
We have a file in /etc/init.d/rc3.d called S99fooprog(not actual name ofcourse).
It just has a command to start a program daemon up. Anyways... (3 Replies)
Discussion started by: benefactr
3 Replies
4. Solaris
Hi All,
In Solaris 9 and below
I will get the init run-level by checking the /etc/inittab entry
is:3:initdefault:
But in Solaris 10 we are using the smf functionality.
Here how I can get the init default run level.
Please help me in this problem.
Regards,
... (2 Replies)
Discussion started by: kalpeer
2 Replies
5. Solaris
what are the major Difference Between run level & init level (2 Replies)
Discussion started by: rajaramrnb
2 Replies
6. UNIX for Dummies Questions & Answers
A Bourne Shell script is placed in /etc/rc.d/rc3.d called S57apache. What will happen with this script when the run level is changed from 5 to 3?
many thanks (4 Replies)
Discussion started by: lemon_06
4 Replies
7. Solaris
Hello,
I'm creating a VM Image of Solaris 10 on VM Player. I've completed the installation & I am using the Java Desktop as my default logon. I need to modify the Run Level to Console Mode (permanently). Unlike previous versions or Linux, modifying inittab file is not an option here.
Please... (2 Replies)
Discussion started by: DevendraG
2 Replies
8. Shell Programming and Scripting
Is there a way to tell what runlevel is currently being used,
for example is a user is using the gui
or is the have pressed Alt+Ctrl+F1 to drop to the terminal?? (3 Replies)
Discussion started by: ab52
3 Replies
9. Solaris
Need inputs when physical server is coming down (ex- init 0) .
We have a physical server in that there are couple of LDOM's and in LDOM's there are couple of Zones . In zones there are applications running .
Physical Server (T4 Server) -> LDOM -> ZONES -> applications
There are scripts... (1 Reply)
Discussion started by: ajayram_arya
1 Replies
10. Solaris
for solaris 11, how does one change the run level at boot from 3 to 2?
i checked "/etc/inittab" file where i usually change it in other *nix but it seems solaris is not using it. (1 Reply)
Discussion started by: badbanana
1 Replies
LEARN ABOUT SUNOS
runlevel
RUNLEVEL(8) runlevel RUNLEVEL(8)
NAME
runlevel - Print previous and current SysV runlevel
SYNOPSIS
runlevel [options...]
OVERVIEW
"Runlevels" are an obsolete way to start and stop groups of services used in SysV init. systemd provides a compatibility layer that maps
runlevels to targets, and associated binaries like runlevel. Nevertheless, only one runlevel can be "active" at a given time, while systemd
can activate multiple targets concurrently, so the mapping to runlevels is confusing and only approximate. Runlevels should not be used in
new code, and are mostly useful as a shorthand way to refer the matching systemd targets in kernel boot parameters.
Table 1. Mapping between runlevels and systemd targets
+---------+-------------------+
|Runlevel | Target |
+---------+-------------------+
|0 | poweroff.target |
+---------+-------------------+
|1 | rescue.target |
+---------+-------------------+
|2, 3, 4 | multi-user.target |
+---------+-------------------+
|5 | graphical.target |
+---------+-------------------+
|6 | reboot.target |
+---------+-------------------+
DESCRIPTION
runlevel prints the previous and current SysV runlevel if they are known.
The two runlevel characters are separated by a single space character. If a runlevel cannot be determined, N is printed instead. If neither
can be determined, the word "unknown" is printed.
Unless overridden in the environment, this will check the utmp database for recent runlevel changes.
OPTIONS
The following option is understood:
--help
Print a short help text and exit.
EXIT STATUS
If one or both runlevels could be determined, 0 is returned, a non-zero failure code otherwise.
ENVIRONMENT
$RUNLEVEL
If $RUNLEVEL is set, runlevel will print this value as current runlevel and ignore utmp.
$PREVLEVEL
If $PREVLEVEL is set, runlevel will print this value as previous runlevel and ignore utmp.
FILES
/run/utmp
The utmp database runlevel reads the previous and current runlevel from.
SEE ALSO
systemd(1), systemd.target(5), systemctl(1)
systemd 237 RUNLEVEL(8)