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|
#! /bin/sh
#
# sysvinit postinst
#
set -e
# Source debconf library.
. /usr/share/debconf/confmodule
# Restart init, and migrate to /run/initctl if needed.
do_restart() {
INITCTL=/run/initctl
case "$(uname -s)" in
*FreeBSD)
OLDINITCTL=/etc/.initctl
;;
*)
OLDINITCTL=/dev/initctl
;;
esac
# PID of init; may not always be 1 but this code isn't run in
# these cases (Hurd). Use for sending signals and checking if
# init is running.
PID=1
# Create /run/initctl if not present, and also create compatibility
# symlinks
if [ ! -p "$INITCTL" ]
then
# Create new control channel
echo "sysvinit: creating $INITCTL"
rm -f $INITCTL
mkfifo -m 600 $INITCTL
fi
# Replace old control channel with symlink
ln -s "$INITCTL" "$OLDINITCTL.new"
mv "$OLDINITCTL.new" "$OLDINITCTL"
# Reopen control channel (uses new channel).
kill -s USR1 "$PID"
# Tell init to re-exec itself. We loop on failure to reduce
# the chance of a race before the new control channel is
# opened.
echo -n "sysvinit: restarting..."
for delay in 0 1 2 3 4 5 6 fail;
do
if init u
then
echo " done."
break
else
if [ "$delay" = "fail" ]
then
echo " failed."
else
echo -n "."
sleep "$delay"
fi
fi
done
# Remove old pipe if present. No longer in use after re-exec.
if [ -p "$OLDINITCTL" ]
then
rm -f "$OLDINITCTL"
fi
}
case "$1" in
configure)
oldver=$2
;;
abort-upgrade|abort-remove|abort-deconfigure)
exit 0
;;
esac
umask 022
rm -f /etc/ioctl.save
if [ ! -f /etc/inittab ]
then
cp -p /usr/share/sysvinit/inittab /etc/inittab
elif [ "$(uname)" = GNU ]; then
ITAB=/etc/inittab
ITABNEW=${ITAB}.dpkg-new
cp $ITAB $ITABNEW
if fgrep -q '/libexec/getty' $ITABNEW; then
sed -e 's|/libexec/getty|/sbin/getty|' \
-i $ITABNEW
fi
if ! grep -q '^c:' $ITABNEW; then
sed -e '/^6:/a c:23:respawn:/sbin/getty 38400 console' \
-i $ITABNEW
fi
if ! diff $ITAB $ITABNEW >/dev/null; then
db_get sysvinit/hurd-fix-inittab
if [ "${RET}" = "true" ]; then
mv -- $ITAB ${ITAB}.dpkg-old
mv -- $ITABNEW $ITAB
fi
else
rm -f -- $ITABNEW
fi
fi
restart=yes
chroot=0
ischroot || chroot="$?"
if [ "$chroot" != "1" ]; then
restart=no
fi
# If systemd is running, don't restart init or doing any initctl
# migration.
if [ -d /run/systemd/system ]; then
restart=no
fi
if [ "$(uname -s)" = "GNU" ]; then
restart=no
fi
if [ "$restart" = "yes" ]; then
do_restart
else
echo "Not restarting sysvinit"
fi
#DEBHELPER#
exit 0
|
