2

What is the default runlevel assigned when you run

chkconfig --add

for a program?

3

chkconfig doesn't change default run levels. That's defined by /etc/inittab (pre-systemd) or systemctl set-default (on systemd).

What chkconfig does is create links to various run levels.

So let's take RedHat 6 (CentOS 6).

When you do chkconfig -add myservice then it will look in /etc/init.d/myservice for specific comment lines:

e.g

# chkconfig: 2345 55 25

The 2345 part means the service will be enabled at run levels 2,3,4 and 5. So now chkconfig --add will create links S55myservice in rc[2345].d and K25myservice in the other run levels (rc[016].d)

  • Ohhh, ok. Thanks Stephen, appreciate your knowledge! – chromechris Sep 14 '16 at 23:08
  • Actually, the a script present under /etc/init.d does not contain a "chkconfig" line in it. In this case, is what runlevel is assigned to this program? – chromechris Sep 14 '16 at 23:12
  • On CentOS6 that'll create S50 scripts for 2,3,4,5 and K50 for 0,1,6 – Stephen Harris Sep 14 '16 at 23:20

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