postinst is in xenomai-system-tools 2.6.4+dfsg-0.2.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | #!/bin/sh
set -e
case "$1" in
    configure)
        # Add the xenomai group unless it's already there
        if ! getent group xenomai >/dev/null; then
            addgroup --quiet --system xenomai || true
        fi
    ;;
    abort-upgrade|abort-remove|abort-deconfigure)
    ;;
    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac
# Automatically added by dh_installinit
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
	if [ -x "/etc/init.d/xenomai" ]; then
		update-rc.d xenomai defaults >/dev/null
	fi
	if [ -x "/etc/init.d/xenomai" ] || [ -e "/etc/init/xenomai.conf" ]; then
		invoke-rc.d xenomai start || exit $?
	fi
fi
# End automatically added section
# Automatically added by dh_installmodules
if [ "$1" = configure ]; then
	if [ -e "/etc/modprobe.d/xenomai" ]; then
		echo "Preserving user changes to /etc/modprobe.d/xenomai.conf ..."
		if [ -e "/etc/modprobe.d/xenomai.conf" ]; then
			mv -f "/etc/modprobe.d/xenomai.conf" "/etc/modprobe.d/xenomai.conf.dpkg-new"
		fi
		mv -f "/etc/modprobe.d/xenomai" "/etc/modprobe.d/xenomai.conf"
	fi
fi
# End automatically added section
# Automatically added by dh_installudev
if [ "$1" = configure ]; then
	if [ -e "/etc/udev/rules.d/z60_xenomai-system-tools.xenomai.rules" ]; then
		echo "Preserving user changes to /etc/udev/rules.d/60-xenomai.rules ..."
		if [ -e "/etc/udev/rules.d/60-xenomai.rules" ]; then
			mv -f "/etc/udev/rules.d/60-xenomai.rules" "/etc/udev/rules.d/60-xenomai.rules.dpkg-new"
		fi
		mv -f "/etc/udev/rules.d/z60_xenomai-system-tools.xenomai.rules" "/etc/udev/rules.d/60-xenomai.rules"
	fi
fi
# End automatically added section
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