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Reimage from Firepower Threat Defense to ASA
Step 5
Press Esc during the bootup when prompted to reach the ROMMON prompt.
Pay close attention to the monitor.
Example:
[...]
Booting from ROMMON
Cisco Systems ROMMON Version (2.1(9)8) #1: Wed Oct 26 17:14:40 PDT 2011
Platform ASA 5555-X with SW, 8 GE Data, 1 GE Mgmt
Use BREAK or ESC to interrupt boot.
Use SPACE to begin boot immediately.
Boot in
Press Esc at this point.
If you see the following message, then you waited too long, and must reboot the FTD again after it finishes
booting:
Launching BootLoader...
Boot configuration file contains 2 entries.
[...]
Step 6
Erase all disk(s) on the FTD. The internal flash is called disk0. If you have an external USB drive, it is disk1.
Example:
Example:
rommon #0> erase disk0:
About to erase the selected device, this will erase
all files including configuration, and images.
Continue with erase? y/n [n]: y
Erasing Disk0:
.......................
[...]
This step erases FTD files so that the ASA does not try to load an incorrect configuration file, which causes
numerous errors.
Step 7
Set the network settings, and load the ASA image using the following ROMMON commands.
interface interface_id
address management_ip_address
netmask subnet_mask
server tftp_ip_address
gateway gateway_ip_address
filepath/filename
set
Cisco ASA and Firepower Threat Defense Reimage Guide
14
7 seconds.
Cisco ASA and Firepower Threat Defense Reimage Guide
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