Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 11-05-2007 Installation Manual page 398

for the first time after an update or an installation, the initial system configuration
is started.
The blogd daemon is a service started by boot and rc before any other one. It is
stopped after the actions triggered by these scripts (running a number of subscripts,
for example, making block special files available) are completed. blogd writes any
screen output to the log file /var/log/boot.msg, but only if and when /var
is mounted read-write. Otherwise, blogd buffers all screen data until /var becomes
available. Get further information about blogd on the blogd(8) man page.
The script boot is also responsible for starting all the scripts in /etc/init.d/
boot.d with a name that starts with S. There, the file systems are checked and
loop devices are configured if needed. The system time is also set. If an error occurs
while automatically checking and repairing the file system, the system administrator
can intervene after first entering the root password. Last executed is the script
boot.local.
boot.local
Here, enter additional commands to execute at boot before changing into a runlevel.
It can be compared to AUTOEXEC.BAT on DOS systems.
boot.setup
This script is executed when changing from single user mode to any other runlevel
and is responsible for a number of basic settings, such as the keyboard layout and
initialization of the virtual consoles.
halt
This script is only executed while changing into runlevel 0 or 6. Here, it is executed
either as halt or as reboot. Whether the system shuts down or reboots depends
on how halt is called.
rc
This script calls the appropriate stop scripts of the current runlevel and the start
scripts of the newly selected runlevel.
You can create your own scripts and easily integrate them into the scheme described
above. For instructions about formatting, naming, and organizing custom scripts, refer
to the specifications of the LSB and to the man pages of init, init.d, chkconfig,
and insserv. Additionally consult the man pages of startproc and killproc.
380 Installation and Administration