Normal System Startup

The /sbin/rc script sources all the files in the /etc/rc.config.d directory. The files in /etc/rc.config.d contain environment variables that control the startup and behavior of various processes.

The /sbin/rc script runs the scripts in the directories /sbin/rc0.d, /sbin/rc1.d, /sbin/rc2.d, /sbin/rc3.d, and /sbin/rc4.d, in that order.

The scripts in the /sbin/rcn.d directories are named SNNNscriptname, where NNN is a sequence number, and scriptname is the name of a startup script in the /sbin/init.d directory. Each of these scripts is actually a link to a startup script in /sbin/init.d. The /sbin/rc script runs them in order by sequence number. Following is a partial listing of the /sbin/rc2.d directory:

lrwxr-xr-x   1 root ... S400nfs.core -> /sbin/init.d/nfs.core
lrwxr-xr-x   1 root ... S410nis.server -> /sbin/init.d/nis.server
lrwxr-xr-x   1 root ... S420nis.client -> /sbin/init.d/nis.client
lrwxr-xr-x   1 root ... S430nfs.client -> /sbin/init.d/nfs.client

All the startup scripts for the NFS services are started at run level 2 except the nfs.server script, which is started at run level 3. Table 7-1 “Startup Scripts for the NFS Services” shows the NFS startup scripts, in the order they are run at system startup. It lists the processes that each script starts and the files and environment variables in /etc/rc.config.d that influence their behavior.

All of the startup scripts start portmap if it is not already started, but only one portmap process should be running at once.

Table 7-1 Startup Scripts for the NFS Services

Startup script in /sbin/init.d	Processes started	Related file in /etc/rc.config.d	Environment variables used
nfs.core	portmap(1M)	none	none
nis.server	portmap(1M) domainname(1) ypserv(1M) ypxfrd(1M) yppasswdd(1M) ypupdated(1M) keyserv(1M)	namesvrs	NIS_MASTER_SERVER NIS_SLAVE_SERVER NIS_DOMAIN YPSERV_OPTIONS YPPASSWDD_OPTIONS KEYSERV_OPTIONS YPUPDATED_OPTIONS YPXFRD_OPTIONS
nis.client	portmap(1M) domainname(1) ypbind(1M) keyserv(1M)	namesvrs	NIS_CLIENT NIS_DOMAIN WAIT_FOR_NIS_SERVER MAX_NISCHECKS YPBIND_OPTIONS KEYSERV_OPTIONS YPSET_ADDR
nfs.client	portmap(1M) biod(1M) statd(1M) lockd(1M) automount(1M) automountd(1M) mount(1M) swapon(1M)	nfsconf	NFS_CLIENT NUM_NFSIOD STATD_OPTIONS LOCKD_OPTIONS AUTOMOUNT AUTO_MASTER AUTOMOUNT_OPTIONS AUTOMOUNTD_OPTIONS
nfs.server	portmap(1M) exportfs(1M) mountd(1M) nfsd(1M) statd(1M) lockd(1M) pcnfsd(1M) swapon(1M)	nfsconf	NFS_SERVER NUM_NFSD STATD_OPTIONS LOCKD_OPTIONS START_MOUNTD MOUNTD_OPTIONS PCNFS_SERVER