Extract an El Torito boot image from an ISO file under linux

Make sure you have the package genisoimage installed on your system. If your running Ubuntu Feisty like myself, you should be able to get if from the universal repository.

billy@linux:~/Microsoft/W2K3ENT$ geteltorito win2k3ent.iso > win2k3ent.img

Booting catalog starts at sector: 20


Manufacturer of CD: Arnes Boot Record

Image architecture: x86

Boot media type is: no emulation

El Torito image starts at sector 541 and has 4 sector(s) of 512 Bytes


Image has been written to stdout ….

As you can see the image file is now present in the same directory as the original image file.

billy@linux:~/Microsoft/W2K3ENT$ ls -l

total 603664

-rw-r–r– 1 billy billy      2048 2007-06-07 11:29 win2k3ent.img


-rw-r–r– 1 billy billy 617533440 2007-06-06 22:33 win2k3ent.iso


-rw-r–r– 1 billy billy        29 2007-06-06 22:33 win2k3ent_serial.txt


billy@linux:~/Microsoft/W2K3ENT$