How to emulate ASA OS 8.4.2
- Download the ASA OS via your CCO Account on Cisco.com
- Download “Repack.v4” : Available Here or Here
- Uncompress Repack and execute it with the ASA OS you have downloaded on Cisco.com
- If syslinux is available on your machine, the script will build an iso else, you have got 2 files the kernel and the initrd.