Hi,
I have tried to make the boot faster by staggering some processes in
background through an added service staggered.
--------------------------------------------------------------------
#/bin/bash
# PLACE: /root/bin/
# AUTHOR: vikram goyal <vikigoyal@xxxxxxxxx> 220407
#
# The file is to be called as:
# The first time call is the filename itself and then its through service call
#
# service staggered start
#
# So that these services load up in the background & save boot time
#
[ -z "$STLOG" ] && STLOG=/dev/tty
# DEBUGGING
#echo \$1=$1 >> $STLOG
SERVICEDIR=/etc/init.d
SERVICENAME=staggered
STAGGERTIME=11s
# The services mentioned here should be in the right priority as mentioned in chkconfig.
# In general no service should be here below around 25 start priority
STAGGERED_SERVICES=' lm_sensors cups apcupsd ntpd clamav dovecot sendmail spamassassin smartd nasd jexec avahi-daemon wine '
START ()
{
FN="$1"
R=`/sbin/runlevel|cut -d ' ' -f2`
echo -e "\n\t`date`\nSTART:" >> $STLOG
# DEBUGGING
#echo \$R=$R >> $STLOG
for x in $STAGGERED_SERVICES
do
[ ! -f $SERVICEDIR/$x ] && echo "error: file $SERVICEDIR/$x not found" >> $STLOG && continue
# Switch off the service. We will manage it ourselves.
/sbin/chkconfig $x off >> $STLOG 2>&1 &
# DEBUGGING
#echo "Processing: $x" >> $STLOG
unset C
C=`cat $SERVICEDIR/$x|grep chkconfig|tr '[ ]' '[:]'|tr -s '[:]'|cut -d ":" -f3|grep [\-$R]`
# DEBUGGING
#echo \$C=$C \$R=$R >> $STLOG
# Since the service x has been turned off. Check if it is supposed
# to run in this level. If yes start it.
if [ -n "$C" ]; then
if [ -n "`echo $C|grep \-`" -a -z "`echo $R|grep [2345]`" ]; then
echo "$R not one of 2,3,4,5 :$x not started" >> $STLOG
continue
fi
# Some services start multiple instances like smartd
# so restart is safer than start
/sbin/service $x restart >> $STLOG 2>&1 &
# return status is bogus :(
# [ $? -eq 0 ] && sleep 15s || sleep 2s
sleep $STAGGERTIME
else
echo "error: $x not to start in $R" >> $STLOG
fi
done
rm -f "/tmp/$FN"
echo -e "\n\t`date`\nEND:" >> $STLOG
}
# ADD THE SERVICE IF THIS FILE IS EXECUTED FOR THE FIRST TIME
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
if [ ! -f $SERVICEDIR/$SERVICENAME ]; then
cat >$SERVICEDIR/$SERVICENAME <<EOF
#!/bin/sh
#
# chkconfig: 2345 99 2
# description: This is modification of boot process. It staggeres \\
# the boot services mentioned in /root/bin/forfastboot
# Source function library.
. /etc/rc.d/init.d/functions
name='staggered'
exec='/root/bin/forfastboot'
prog="\`basename \$exec\`"
lockfile="/var/lock/subsys/\$name"
# Hash STLOG for debug output on console
export STLOG=/var/log/staggered.log
RETVAL=0
start() {
echo -n \$"Starting service staggered: "
if [ -f \$lockfile ]; then
echo_failure
echo
return
fi
\$exec servicecall & > /dev/null 2>&1
touch \$lockfile && echo_success && echo
}
stop() {
echo -n \$"Stopping service staggered: "
rm -f \$lockfile
echo_success && echo
}
case "\$1" in
start|stop)
\$1
;;
*)
echo $"Usage: \$0 {start|stop}"
exit 1
;;
esac
exit \$RETVAL
EOF
/bin/chmod +x $SERVICEDIR/$SERVICENAME
/sbin/chkconfig staggered on
echo service staggered added.
fi
if [ -n "`echo $1|egrep ^[0-9]{5\,}fb$`" ]; then
# Tmp lock file has been created, so call the function.
# DEBUGGING
#echo "loop \$1=$1 exe" >> $STLOG
START $1
exit 0
elif [ "$1" != servicecall ]; then
echo "call $0 from service staggered."
exit 1
fi
LF=${RANDOM}${RANDOM}fb
touch /tmp/$LF
$0 $LF &
exit
------------------------------------------------------------------------
If anyone cares to use it then please check the services I have added in
the staggered process before execution.
--
vikram...
||||||||
||||||||
^^'''''^^||root||^^^'''''''^^
// \\ ))
//(( \\// \\
// /\\ || \\
|| / )) (( \\
--
The core is not frozen, but slushy.
-- Larry Wall in <199705101952.MAA00756@xxxxxxxx>
--
~|~
=
Registered Linux User #285795
