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Solaris init states refer to the level of services provided by the system. The exact services and processes run at each init level are determined by the scripts in the /etc/rc#.d directories. The default service levels for each init state are listed below:
ok>) or security monitor (
>) prompt. It is safe to shut down the system when it is at this init state.
/usr) are mounted. This init state is often used for sensitive functions (such as kernel libc patches) or while troubleshooting a problem that is keeping the system from booting into multiuser mode.
boot -acommand. The system is taken to init 0 and an interactive boot is started.
The init states are defined in the
/etc/inittab file, which usually
points at the scripts in
/sbin/rcrun-level. These scripts in
turn examine the contents of the
The scripts in these directories whose names begin with the letter
are run in "stop" mode first in alphabetical order. Then the scripts whose names
begin with the letter
S are run in "start" mode in alphabetical order.
To get to a desired run level n, each of the rc (run control) scripts from 1
to n is run. To get to run level 0, the
K scripts are run in each
rc#.d directory between the current run level and 0 in reverse numerical
In the default configuration, the rc scripts accomplish the following tasks:
named, if appopriate.
kerbd(the Kerberos client daemon) if appropriate.
lpdaemons, as appropriate.
rpc.bootparamd, as appropriate.
/sbin/rc4is usually not defined. It can be used in a non-default configuration to achieve a tailored run level.
lockd(NFS client services).
initdefaultlevel from the
/sbin/rcS: This run level differs from 1 in the following particulars:
/usr/kvmfilesystems are checked and mounted (if necessary).
To find out current runlevel use who command:
$ who -rOutput:
. run-level 3 Mar 3 14:04 3 0 SSolaris changing runlevels after bootup
You need to use init command, for example change runlevel to 2.
# /sbin/init 2Solaris changing the default runlevel
An entry with initdefault (in /etc/inittab file) is scanned only when init is initially invoked. init uses this entry to determine which run level to enter initially.
Open /etc/inittab file:
# vi /etc/inittabFind out this entry:
Change is:3 to number you want, don't use S, 0, 6 ;). Save file.
Groupthink : Two Party System as Polyarchy : Corruption of Regulators : Bureaucracies : Understanding Micromanagers and Control Freaks : Toxic Managers : Harvard Mafia : Diplomatic Communication : Surviving a Bad Performance Review : Insufficient Retirement Funds as Immanent Problem of Neoliberal Regime : PseudoScience : Who Rules America : Neoliberalism : The Iron Law of Oligarchy : Libertarian Philosophy
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Vol 25, No.12 (December, 2013) Rational Fools vs. Efficient Crooks The efficient markets hypothesis : Political Skeptic Bulletin, 2013 : Unemployment Bulletin, 2010 : Vol 23, No.10 (October, 2011) An observation about corporate security departments : Slightly Skeptical Euromaydan Chronicles, June 2014 : Greenspan legacy bulletin, 2008 : Vol 25, No.10 (October, 2013) Cryptolocker Trojan (Win32/Crilock.A) : Vol 25, No.08 (August, 2013) Cloud providers as intelligence collection hubs : Financial Humor Bulletin, 2010 : Inequality Bulletin, 2009 : Financial Humor Bulletin, 2008 : Copyleft Problems Bulletin, 2004 : Financial Humor Bulletin, 2011 : Energy Bulletin, 2010 : Malware Protection Bulletin, 2010 : Vol 26, No.1 (January, 2013) Object-Oriented Cult : Political Skeptic Bulletin, 2011 : Vol 23, No.11 (November, 2011) Softpanorama classification of sysadmin horror stories : Vol 25, No.05 (May, 2013) Corporate bullshit as a communication method : Vol 25, No.06 (June, 2013) A Note on the Relationship of Brooks Law and Conway Law
Fifty glorious years (1950-2000): the triumph of the US computer engineering : Donald Knuth : TAoCP and its Influence of Computer Science : Richard Stallman : Linus Torvalds : Larry Wall : John K. Ousterhout : CTSS : Multix OS Unix History : Unix shell history : VI editor : History of pipes concept : Solaris : MS DOS : Programming Languages History : PL/1 : Simula 67 : C : History of GCC development : Scripting Languages : Perl history : OS History : Mail : DNS : SSH : CPU Instruction Sets : SPARC systems 1987-2006 : Norton Commander : Norton Utilities : Norton Ghost : Frontpage history : Malware Defense History : GNU Screen : OSS early history
The Peter Principle : Parkinson Law : 1984 : The Mythical Man-Month : How to Solve It by George Polya : The Art of Computer Programming : The Elements of Programming Style : The Unix Haterís Handbook : The Jargon file : The True Believer : Programming Pearls : The Good Soldier Svejk : The Power Elite
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The Last but not Least Technology is dominated by two types of people: those who understand what they do not manage and those who manage what they do not understand ~Archibald Putt. Ph.D
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