is there a tool that will build a docker image (or whatever container) from a VM? I need to see this guy's system, but I don't have a way to get an entire disk image...I mean, they are unwilling to put it on an FTP server, so I mean, ultimately if I can't do it I can't do it, but it'd be nice to help them out (and make sure this is not a fixable bug rather than a config error)