Upgrade Firepower Devices from CLI（expert mode）

1.确认升级的路径和目标

Cisco Firepower Release Notes, Version 6.4.x - Upgrade Guidelines [Cisco Secure Firewall Management Center] - Cisco

2.下载并上传文件

下载的部分这里将不做记录了。直接看如何进入expert mode。

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Cisco Firepower Extensible Operating System (FX-OS) v2.12.0 (build 1104)
Cisco Firepower Threat Defense for VMware v7.2.2 (build 54)

> expert
admin@vFTD:~$ sudo su
Password:

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

Password: 
root@vFTD:/home/admin# 
root@vFTD:/home/admin# cd
root@vFTD:~# cd /ngfw/var/sf/updates
root@vFTD:/ngfw/var/sf/updates#

上传之后，我们来查看：ls -lrth