End-To-End Procedure - Cisco Firepower 2100 Getting Started Manual

End-to-End Procedure

ASA 5500-X Configuration
boot system commands
The ASA 5500-X allows up to four boot system commands to
specify the booting image to use.
End-to-End Procedure
See the following tasks to deploy and configure the ASA on your chassis.
Cisco Firepower 2100 Getting Started Guide
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Firepower 2100 in Appliance Mode Configuration
The Firepower 2100 in Appliance Mode only allows a single
boot system command, so you should remove all but one
command before you paste. You actually do not need to have any
boot system commands present in your configuration, as it is not
read at startup to determine the booting image. The last-loaded
boot image will always run upon reload.
The boot system command performs an action when you enter
it: the system validates and unpacks the image and copies it to
the boot location (an internal location on disk0 managed by
FXOS). The new image will load when you reload the ASA.
ASA Deployment with ASDM