9.3.5 CD-image file (bootable)

To create a CD-image of files under target-directory/ as cd-image.raw (bootable, Joliet TRANS.TBL-enabled format; if not bootable, take out -b and -c options), insert a boot floppy in the first floppy drive and

     # dd if=/dev/fd0 target-directory/boot.img 
     # mkisofs -r -V volume_id -b boot.img -c bootcatalog -J -T \
             -o cd-image.raw target_directory/

One funny hack is to make a bootable DOS CD-ROM. If an ordinary DOS boot floppy disk image is in the above boot.img, the CD-ROM will boot as if a DOS floppy were in the first floppy drive (A:). Doing this with freeDOS may be more interesting.

This CD-image file can be inspected by mounting it on the loop device.

     # mount -t iso9660 -o ro,loop cd-image.raw /cdrom
     # cd /cdrom
     # mc
     # umount /cdrom