Generate an ISO9660/Joliet/HFS filesystem for writing to a CD. (HFS is the native Macintosh Hierarchical File System.) mkisofs takes a snapshot of a directory tree and generates a binary image that corresponds to an ISO9660 or HFS filesystem when it is written to a block device. Each specified pathspec describes the path of a directory tree to be copied into the ISO9660 filesystem; if multiple paths are specified, the files in all the paths are merged to form the image. mkisofs is now generally a symbolic link to genisoimage.
mkisofs -V LABEL -r dir | gzip > cdrom.iso.gz Create cdrom image from contents of dir