every os is different but this should help:
Code:
[schneidz@hyper ~]$ ll Fedora-17-x86_64-Live-Desktop.iso
-rw-rw-r--. 1 root root 676331520 May 22 2012 Fedora-17-x86_64-Live-Desktop.iso
[schneidz@hyper ~]$ file Fedora-17-x86_64-Live-Desktop.iso
Fedora-17-x86_64-Live-Desktop.iso: # ISO 9660 CD-ROM filesystem data 'Fedora-17-x86_64-Live-Desktop.is' (bootable)
[schneidz@hyper ~]$ mkdir iso-mount
[schneidz@hyper ~]$ sudo mount -o loop Fedora-17-x86_64-Live-Desktop.iso iso-mount/
mount: warning: iso-mount/ seems to be mounted read-only.
[schneidz@hyper ~]$ ll iso-mount/isolinux/
total 19318
-r--r--r--. 1 root root 2048 May 22 2012 boot.cat
-r--r--r--. 1 root root 581632 May 22 2012 efiboot.img
-r--r--r--. 1 root root 13027834 May 22 2012 initrd0.img
-r--r--r--. 1 root root 24576 May 22 2012 isolinux.bin
-r--r--r--. 1 root root 2227 May 22 2012 isolinux.cfg
-r--r--r--. 1 root root 1146880 May 22 2012 macboot.img
-r--r--r--. 1 root root 176760 May 22 2012 memtest
-r--r--r--. 1 root root 155792 May 22 2012 vesamenu.c32
-r--r--r--. 1 root root 4662160 May 22 2012 vmlinuz0
[schneidz@hyper ~]$ file iso-mount/isolinux/vmlinuz0
iso-mount/isolinux/vmlinuz0: Linux kernel x86 boot executable bzImage, version 3.3.4-5.fc17.x86_64 (mockbuild@x86-14.phx2.fedoraproject.org) #, RO-rootFS, swap_dev 0x4, Normal VGA