Hi
I'm trying to build custom debian 8 isos using live-build. After a successful build If I change some scripts in config directory (like hooks for chroot in config/hooks/myconf.hook.chroot) or change preseed file, is there anyway I can rebuild a new iso without lb clean? cause lb clean clears chroot compleletely and rebuild will take a long time beacuse I have many packages which are added in chroot stage (I know it caches packages and will not download them again but adding them to chroot still takes a long time).
thanks