minix/etc/rc
Jorrit Herder 74711a3b14 Check if kernel calls is allowed (from process' call mask) added. Not yet
enforced. If a call is denied, this will be kprinted. Please report any such
errors, so that I can adjust the mask before returning errors instead of
warnings.

Wrote CMOS driver. All CMOS code from FS has been removed. Currently the
driver only supports get time calls. Set time is left out as an exercise
for the book readers ... startup scripts were updated because the CMOS driver
is needed early on. (IS got same treatment.) Don't forget to run MAKEDEV cmos
in /dev/, otherwise the driver cannot be loaded.
2005-08-04 19:23:03 +00:00

159 lines
3.6 KiB
Text
Executable file

# /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
export TERM PATH
usage()
{
echo >&2 "Usage: $0 [-saf] start|stop|down"
exec intr sh
}
up()
{
service=$1
args=$2
device=$3
# Function to dynamically start a system service
command="/sbin/$service"
if [ ! -z "$args" ]; then command="$command -args \"$args\""; fi
if [ ! -z "$device" ]; then command="$command -dev \"$device\""; fi
echo -n " $service"
eval service up $command
}
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 $action in
start)
echo ""
echo "Multiuser startup in progress ..."
# National keyboard?
test -f /etc/keymap && loadkeys /etc/keymap
# Start crucial system services
echo -n "Starting services:"
up is ""
up cmos "" /dev/cmos
echo .
# Set timezone.
. /etc/profile
# Try to read the hardware real-time clock, otherwise do it manually.
readclock || intr date -q
# Initialize files.
printroot >/etc/mtab # /etc/mtab keeps track of mounts
>/etc/utmp # /etc/utmp keeps track of logins
# /etc/fstab lists the root, tmp and usr devices.
. /etc/fstab
# Any swapspace on a device?
test "$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="`/bin/dev2name $usrdev`"
echo "Setting /usr to mount readonly from cd: $usrdev -> $usr"
fi
# Mount the /usr partition unless this is a single floppy Minix.
if [ ! -d /usr/bin ]
then
if [ "$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
intr fsck -r $root
intr fsck -r $usr
mount $usr /usr
fi
# This file is necessary for above 'shutdown -C' check.
# (Silence stderr in case of running from cd.)
touch /usr/adm/wtmp 2>/dev/null
if [ "$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
esac
# Things should be alright now.
esac
# Further initialization.
test -f /usr/etc/rc && sh /usr/etc/rc $action
test -f /usr/local/etc/rc && sh /usr/local/etc/rc $action
# Any messages?
test "$action" = start -a -f /etc/issue && cat /etc/issue
exit 0