I removed all files and folders in ~/livecd and try again ~/livecd$ lh_config -b usb-hdd -ai386 -k686 ~/livecd$ sudo lh_build It`s OK. In the folder (~/livecd) containing the files, left behind ~/livecd$ lh_config ~/livecd$ sudo lh_build ~/livecd$ lh_clean Thank you for your help!