rc

早期freebsd实现

#	@(#)rc	8.2 (Berkeley) 3/17/94

# System startup script run by init on autoboot
# or after single-user.
# Output and error are redirected to console by init,
# and the console is the controlling terminal.

stty status '^T'

# Set shell to ignore SIGINT (2), but not children;
# shell catches SIGQUIT (3) and returns to single user after fsck.
trap : 2
trap : 3	# shouldn't be needed

HOME=/; export HOME
PATH=/sbin:/bin:/usr/sbin:/usr/bin
export PATH

if [ -r /fastboot ]
then
	echo "Fast boot: skipping disk checks."
elif [ $1x = autobootx ]
then
	echo "Automatic boot in progress: starting file system checks."
	fsck -p
	case $? in
	0)
		;;
	2)
		exit 1
		;;
	4)
		echo "Rebooting..."
		reboot
		echo "Reboot failed; help!"
		exit 1
		;;
	8)
		echo "Automatic file system check failed; help!"
		exit 1
		;;
	12)
		echo "Boot interrupted."
		exit 1
		;;
	130)
		# interrupt before catcher installed
		exit 1
		;;
	*)
		echo "Unknown error; help!"
		exit 1
		;;
	esac
fi

trap "echo 'Boot interrupted.'; exit 1" 3

swapon -a

umount -a >/dev/null 2>&1
mount -a -t nonfs
rm -f /fastboot		# XXX (root now writeable)

# set hostname, turn on network
echo 'starting network'
. /etc/netstart

mount -a -t nfs >/dev/null 2>&1 &	# XXX shouldn't need background

# clean up left-over files
rm -f /etc/nologin
rm -f /var/spool/uucp/LCK.*
rm -f /var/spool/uucp/STST/*
(cd /var/run && { rm -rf -- *; install -c -m 664 -g utmp /dev/null utmp; })

echo -n 'starting system logger'
rm -f /dev/log
syslogd

# $timedflags is imported from /etc/netstart;
# if $timedflags == NO, timed isn't run.
if [ X${timedflags} != X"NO" ]; then
	echo -n ', time daemon'; timed $timedflags
fi
echo '.'

# /var/crash should be a directory or a symbolic link
# to the crash directory if core dumps are to be saved.
if [ -d /var/crash ]; then
	echo checking for core dump...
	savecore /var/crash
fi

				echo -n 'checking quotas:'
quotacheck -a
				echo ' done.'
quotaon -a

# build ps databases
kvm_mkdb
dev_mkdb

chmod 666 /dev/tty[pqrs]*

# check the password temp/lock file
if [ -f /etc/ptmp ]
then
	logger -s -p auth.err \
	'password file may be incorrect -- /etc/ptmp exists'
fi

echo preserving editor files
(cd /var/tmp && /usr/libexec/ex3.7preserve -a &&
     rm -f Ex[0-9][0-9][0-9][0-9][0-9] Rx[0-9][0-9][0-9][0-9][0-9])

echo clearing /tmp

# Prune quickly with one rm, then use find to clean up /tmp/[lq]* (this
# is not needed with mfs /tmp, but doesn't hurt anything).
(cd /tmp && rm -rf [a-km-pr-zA-Z]* &&
    find . ! -name . ! -name lost+found ! -name quotas -type d -prune \
	-exec rm -rf -- {} \;)

echo 'turning on accounting';	accton /var/account/acct

echo -n standard daemons:
echo -n ' update';		update
echo -n ' cron';		cron
echo '.'

echo -n starting network daemons:

# $gated and $routedflags are imported from /etc/netstart.
# If $gated == YES, gated is used; otherwise routed.
# If $routedflags == NO, routed isn't run.
if [ X${gated} = X"YES" -a -r /etc/gated.conf ]; then
	echo -n ' gated';	gated $gatedflags
elif [ X${routedflags} != X"NO" ]; then
	echo -n ' routed';	routed $routedflags
fi

echo -n ' named';		named

# $rwhod is imported from /etc/netstart;
# if $rwhod is set to something other than NO, rwhod is run.
if [ ${rwhod-NO} != "NO" ]; then
	echo -n ' rwhod';	rwhod
fi

echo -n ' printer';		lpd

echo -n ' portmap';		portmap
echo -n ' mountd';		mountd
echo -n ' nfsd';		nfsd -u -t 6
echo -n ' nfsiod';		nfsiod 4

echo -n ' sendmail';		sendmail -bd -q30m
echo -n ' inetd';		inetd
echo -n ' amd';
	cd /; amd -l /var/log/amd -r -a /amd -p > /var/run/amd.pid \
	/home /etc/amd-home \
	/n /etc/amd-n \
	&

echo '.'

sh /etc/rc.local

date
exit 0