source: trunk/minix/etc/rc@ 12

# /etc/rc - System startup script run by init before going multiuser.

umask 022
TERM="${TERM-minix}"
PATH=/usr/local/bin:/bin:/usr/bin:/usr/sbin
RC_TZ=/etc/rc.timezone
export TERM PATH

usage()
{
    echo >&2 "Usage: $0 [-saf] start|stop|down"
    exec intr sh
}

up()
{
    service=$1
    shift

    # Function to dynamically start a system service
    echo -n " $service"
    service up /sbin/$service "$@"
}

while getopts 'saf' opt
do
    case $opt in
    s)  sflag=t ;;      # Single user
    a)  aflag=t ;;      # Ask for /usr
    f)  fflag=t ;;      # Force a full file system check
    *)  usage
    esac
done
shift `expr $OPTIND - 1`

case "$#:$1" in
1:start|1:stop|1:down)
    action=$1
    ;;
*)  usage
esac

case $action in
start)
    echo ""
    echo -n "Multiuser startup in progress ...:"

    # National keyboard?
    test -f /etc/keymap && loadkeys /etc/keymap

    up is -period 5HZ
    up cmos -dev /dev/cmos -period 5HZ
    echo .

    # Set timezone.
    export TZ=GMT0
    if [ -f "$RC_TZ" ]
    then . "$RC_TZ"
    fi

    # Try to read the hardware real-time clock, otherwise do it manually.
    readclock || intr date -q

    # Initialize files.
    printroot >/etc/mtab                # /etc/mtab keeps track of mounts
    >/etc/utmp                          # /etc/utmp keeps track of logins

    # /etc/fstab lists the root, tmp and usr devices.
    . /etc/fstab

    # Any swapspace on a device?
    test "$swap" : '/dev/' && mount -s $swap

    # Are we booting from CD?
    bootcd="`/bin/sysenv bootcd`"

    # If booting from CD, /usr has to be mounted readonly.
    # Also, $usr won't be specified correctly in the
    # fstab (the CD could be anywhere), so we decide
    # where it is based on sysenv (set by FS when probing for CD).
    if [ "$bootcd" = 1 ]
    then        
                #imagedev="`/bin/sysenv cdproberoot`"
                #usrdev="`expr $imagedev + 1`"
                usr_roflag="-r"
                usr="$cddev"p2
                echo "Setting /usr on cd is $usr"
    fi
 
    # Mount the /usr partition unless this is a single floppy Minix.
    if [ ! -d /usr/bin ]
    then
        if [ "$aflag" -o "$usr" = unknown ]
        then
            # We need to ask what the /usr du jour is.
            intr sh -c '
                echo -n "Finish the name of device to mount as /usr: /dev/"
                read usr
                echo "usr=/dev/$usr" >/tmp/usr'
            . /tmp/usr
        fi
        mount $usr_roflag $usr /usr || {
            echo "\
Please try to mount something else as /usr, then hit CTRL-D to continue startup.
Mount $usr /usr failed -- Single user."
            intr sh
        }
        rm -f /tmp/usr
    fi

    # Check if the system crashed.
    if shutdown -C
    then
        echo
        echo "The system was not properly shut down.  Checking file systems."
        fflag=t
    fi

    if [ "$fflag" ]
    then
        umount $usr
        echo "fsck / - $root"
        intr fsck -r $root
        echo "fsck /usr - $usr"
        intr fsck -r $usr
        if [ ! -z "$home" ]
        then    echo "fsck /home - $home"
                intr fsck -r $home
        fi
        mount $usr /usr
    fi

    if [ ! -z "$home" ]
    then mount $home /home || echo "WARNING: couldn't mount $home on /home"
    fi

    # This file is necessary for above 'shutdown -C' check.
    # (Silence stderr in case of running from cd.)
    touch /usr/adm/wtmp 2>/dev/null

    if [ "$sflag" ]
    then
        echo "Single user."
        intr sh
    fi

    # Any swapspace on a file?
    test -n "$swap" -a ! "$swap" : '/dev/' && mount -s $swap


    case "`printroot -r`":$bootcd in
    /dev/ram:)
        # Remove boot-only things to make space,
        # unless booting from CD, in which case we need them.
        rm -rf /boot
        # put the compiler on ram
        cp /usr/lib/em* /usr/lib/cpp* /lib
    esac

    # Things should be alright now.
    ;;
down|stop)
    sync
    # Tell RS server we're going down.
    service shutdown
    ;;
esac

# Further initialization.
test -f /usr/etc/rc && sh /usr/etc/rc $action
test -f /usr/local/etc/rc && sh /usr/local/etc/rc $action
test -f /etc/rc.rescue && sh /etc/rc.rescue $action

# Any messages?
test "$action" = start -a -f /etc/issue && cat /etc/issue

exit 0