#! /bin/bash -e

# = = = = = = = = = = = = = = = = = = = = = = =
# =     Copyright (C) 2015-2019 uib GmbH      =
# =           http://www.uib.de               =
# =          All rights reserved.             =
# = = = = = = = = = = = = = = = = = = = = = = =

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package

VERBOSE=true

case "$1" in
	install|upgrade)
		TFTPROOT="/tftpboot/linux"
		if [ -f "$TFTPROOT/pxelinux.cfg/default.menu" ]; then
			echo "saving your configuration files"
			cp $TFTPROOT/pxelinux.cfg/default.nomenu $TFTPROOT/pxelinux.cfg/default.nomenu.old
			cp $TFTPROOT/pxelinux.cfg/default.menu $TFTPROOT/pxelinux.cfg/default.menu.old
			cp $TFTPROOT/pxelinux.cfg/install-x64 $TFTPROOT/pxelinux.cfg/install-x64.old
			cp $TFTPROOT/pxelinux.cfg/install3264 $TFTPROOT/pxelinux.cfg/install3264.old
			cp $TFTPROOT/pxelinux.cfg/install-elilo-x64 $TFTPROOT/pxelinux.cfg/install-elilo-x64.old
			cp $TFTPROOT/pxelinux.cfg/elilo.conf $TFTPROOT/pxelinux.cfg/elilo.conf.old
		fi
		if [ -f "/tftpboot/grub/grub.cfg" ]; then
			cp /tftpboot/grub/grub.cfg /tftpboot/grub/grub.cfg.old
		fi
		if [ -f "/tftpboot/grub/grub-custom.cfg" ]; then
			cp /tftpboot/grub/grub-custom.cfg /tftpboot/grub/grub-custom.cfg.old
		fi

	;;

	abort-upgrade)

	;;

	*)
		echo "postinst called with unknown argument \`$1'" >&2
		exit 1
	;;
esac

exit 0
