Courtesy: lindows2008@superuser.com
$ sudo apt-get install dmg2img
$ dmg2img -v -i /path/to/image_file.dmg -o /path/to/image_file.iso
$ sdb is an example. In your case it might be different
Courtesy: lindows2008@superuser.com
$ sudo apt-get install dmg2img
$ dmg2img -v -i /path/to/image_file.dmg -o /path/to/image_file.iso
$ sdb is an example. In your case it might be different