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#!/bin/sh
set -e
# This script can be called in the following ways:
#
# Before the package is installed:
# <new-preinst> install
#
# Before removed package is upgraded:
# <new-preinst> install <old-version>
#
# Before the package is upgraded:
# <new-preinst> upgrade <old-version>
#
#
# If postrm fails during upgrade or fails on failed upgrade:
# <old-preinst> abort-upgrade <new-version>
case "$1" in
install|upgrade)
# When upgrading from a version that was using an Alias= instead of
# symlink to mask the LSB initscript, stop NetworkManager before
# upgrading if we are running systemd and the NetworkManager.service is
# not enabled. This will ensure that NM can properly be stopped and
# then started again after the upgrade (See: #734460)
if dpkg --compare-versions "$2" lt-nl "0.9.8.8-2~"; then
if [ -d /run/systemd/system ] && \
! systemctl is-enabled NetworkManager.service > /dev/null 2>&1; then
if [ -x "/etc/init.d/network-manager" ]; then
invoke-rc.d network-manager stop || exit $?
fi
fi
fi
# Upgrade from previous versions
if dpkg --compare-versions "$2" lt "0.9.7.997-2"; then
# Move old pid file to /var/run/NetworkManager so the init script
# doesn't get confused
if [ -f /var/run/NetworkManager.pid ]; then
[ -d /var/run/NetworkManager/ ] || mkdir /var/run/NetworkManager
mv -n /var/run/NetworkManager.pid /var/run/NetworkManager/
fi
fi
;;
abort-upgrade)
;;
*)
echo "$0 called with unknown argument \`$1'" 1>&2
exit 1
;;
esac
#DEBHELPER#
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