58
Chapter 3. Boot Process, Init, and Shutdown
Next, the
init
command sets the source function library,
/etc/rc.d/init.d/functions
, for the
system. This spells out how to start or kill a program and how to determine the PID of a program.
The
init
program starts all of the background processes by looking in the appropriate
rc
directory for
the runlevel specified as default in
/etc/inittab
. The
rc
directories are numbered to corresponds
to the runlevel they represent. For instance,
/etc/rc.d/rc5.d/
is the directory for runlevel five.
When booting to runlevel 5, the
init
program looks in the
/etc/rc.d/rc5.d/
directory to
determine which processes to start and stop. Below is an example listing for a runlevel 5,
/etc/rc.d/rc5.d/
directory:
K01pppoe > ../init.d/pppoe
K05innd > ../init.d/innd
K10ntpd > ../init.d/ntpd
K15httpd > ../init.d/httpd
K15mysqld > ../init.d/mysqld
K15pvmd > ../init.d/pvmd
K16rarpd > ../init.d/rarpd
K20bootparamd > ../init.d/bootparamd
K20nfs > ../init.d/nfs
K20rstatd > ../init.d/rstatd
K20rusersd > ../init.d/rusersd
K20rwalld > ../init.d/rwalld
K20rwhod > ../init.d/rwhod
K25squid > ../init.d/squid
K28amd > ../init.d/amd
K30mcserv > ../init.d/mcserv
K34yppasswdd > ../init.d/yppasswdd
K35dhcpd > ../init.d/dhcpd
K35smb > ../init.d/smb
K35vncserver > ../init.d/vncserver
K45arpwatch > ../init.d/arpwatch
K45named > ../init.d/named
K50snmpd > ../init.d/snmpd
K54pxe > ../init.d/pxe
K55routed > ../init.d/routed
K60mars nwe > ../init.d/mars nwe
K61ldap > ../init.d/ldap
K65kadmin > ../init.d/kadmin
K65kprop > ../init.d/kprop
K65krb524 > ../init.d/krb524
K65krb5kdc > ../init.d/krb5kdc
K75gated > ../init.d/gated
K80nscd > ../init.d/nscd
K84ypserv > ../init.d/ypserv
K90ups > ../init.d/ups
K96irda > ../init.d/irda
S05kudzu > ../init.d/kudzu
S06reconfig > ../init.d/reconfig
S08ipchains > ../init.d/ipchains
S10network > ../init.d/network
S12syslog > ../init.d/syslog
S13portmap > ../init.d/portmap
S14nfslock > ../init.d/nfslock
S18autofs > ../init.d/autofs
S20random > ../init.d/random
S25netfs > ../init.d/netfs
S26apmd > ../init.d/apmd
S35identd > ../init.d/identd
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