Run Control Script Summaries

The following sections summarize the run control scripts that are used to start and stop system services when you change run levels.

The /sbin/rc0 Script

The /sbin/rc0 script runs the /etc/rc0.d scripts to perform the following tasks:

• Stops system services and daemons

• Terminates all running processes

• Unmounts all file systems

The /sbin/rc1 Script

The /sbin/rc1 script runs the /etc/rc1.d scripts to perform the following tasks:

• Stops system services and daemons

• Terminates all running user processes

• Unmounts all remote file systems

• Mounts all local file systems if the previous run level was S

The /sbin/rc2 Script

The /sbin/rc2 script runs the /etc/rc2.d scripts to perform the following tasks, grouped by function:

Local system-related tasks:

• Mounts all local file systems if the previous run level was S

• Enables disk quotas if at least one file system was mounted with the quota option

• Saves temporary editor files in the /usr/preserve directory

• Removes any files and subdirectories in the /tmp directory

• Starts system activity data collecting, system accounting, and system auditing, if configured

• Starts the system logging daemon (syslogd), sets the default dump device, and rotates the /var/adm/messages file

• Sets the default scheduling class if the /etc/dispadmin.conf file exists

• Starts LP print service (lpsched) if a local printer is configured and cleans up the print queue

• Configures power management, if appropriate

• Starts the utmpd daemon

• Starts the cron and vold daemons

• Configures serial device stream

• Configures WBEM services

• Syncs volumes, if required, and starts the mdmonitord daemon to monitor the physical components of the volumes

• Starts the CDE desktop login process, dtlogin, if appropriate

Network service or security-related tasks:

• Configures the network interfaces, sets ifconfig netmask, and configures network routing, if appropriate

• Starts network service (inetd and rpcbind) daemons

• Starts the logical link controller (llc2), if configured

• Sets the name service domain name, starts various name services daemons, depending on if the system is configured for a name service, and whether the system is a client or a server

• Starts the keyserv, statd, lockd, and xntpd daemons, if appropriate

• Mounts all NFS entries

• Configures the Solaris Network Cache and Accelerator (NCA) and NCA logging, if appropriate

• Starts the Solaris PPP server or client daemons (pppoed or pppd), if configured

• Starts LDAP cache manager (ldap_cachemgr), if configured

• Starts directory server (slapd) daemon, if configured

• Starts DNS (in.named) daemon, if configured

• Starts Service Location Protocol (slpd) daemon, if configured

• Configures system resource controls and system pools if the /etc/rctladm.conf and /etc/pooladm.conf files exist

• Starts the cachefsd, automount, and sendmail daemons, if appropriate

• Starts the htt_server process

Install-related tasks:

• Configures the boot environment for the Live Upgrade software upon system startup or system shutdown

• Checks for the presence of the /etc/.UNCONFIGURE file to see if the system should be reconfigured

• Reboots the system from the installation media or a boot server if either /.PREINSTALL or /AUTOINSTALL exists

Hardware-related tasks:

• Starts the Sun Fire 15000 key management daemon (sckmd), if appropriate

• Starts the Sun Fire 880 Dynamic Reconfiguration daemon (sf880drd), if appropriate

• Runs the flash PROM update script

• Configures any graphic frame buffers or graphic accelerators

• Runs the FCode interpreter daemon (efdaemon), if necessary

Transitions the following services between run-level changes:

• Apache (tomcat)

• Boot server (in.rarpd), (rpc.bootparamd), or (rpld)

• DHCP (in.dhcpd)

• Kerberos KDC (krb5kdc ) and Kerberos administration (kadmind)

• Mobile IP (mipagent)

• NFS server (nfsd), (mountd), (nfslogd)

• Samba (smdb) and (nmdb)

• Secure shell (sshd)

• Solstice Enterprise Agents (dmispd) and (snmpXdmid)

Many of the system services and applications that are started at run level 2 depend on what software is installed on the system.

The /sbin/rc3 Script

The /sbin/rc3 script runs the /etc/rc3.d scripts to perform the following tasks:

• Starts the Apache server daemon (tomcat), if configured

• Starts the DHCP daemon (in.dhcpd), if appropriate

• Starts Kerberos KDC (krb5kdc) and Kerberos administration (kadmind) daemons, if configured

• Starts Mobile IP daemon (mipagent), if configured

• Starts the Samba daemons (smdb and nmdb), if configured

• Starts the secure shell daemon (sshd), if appropriate

• Starts the Solstice Enterprise Agents (dmispd and snmpXdmid)

• Cleans up the /etc/dfs/sharetab file

• Starts the NFS server daemons nfsd, mountd, and nfslogd, if appropriate

• If the system is a boot server, starts the rarpd, rpc.bootparamd, and rpld daemons

The /sbin/rc5 and /sbin/rc6 Scripts

The /sbin/rc5 and /sbin/rc6 scripts run the /etc/rc0.d/K* scripts to perform the following tasks:

• Kills all active processes

• Unmounts the file systems

The /sbin/rcS Script

The /sbin/rcS script runs the /etc/rcS.d scripts to bring the system up to run level S. The following tasks are performed by these scripts:

• Establishes a minimal network

• Checks and mounts root (/), /usr, /tmp, /var, /var/adm, and /var/run file systems.

• Sets the system name

• Mounts pseudo file systems (/proc and /dev/fd)

• Rebuilds the device entries for reconfiguration boots

• Checks and mounts other file systems to be mounted in single-user level