Upgrading the firewall

In this section, you will learn how to upgrade your firewall and what steps need to be taken to ensure a smooth process. We will review important information to keep in mind when preparing your maintenance window and providing for a contingency plan.

Understanding the partitions

Before we start the upgrade procedure, there's an important bit of information you need to know. Like most Linux systems, the hard disk has been partitioned into specific segments. These segments serve a specific purpose.

A few important ones are as follows:

• / is the root partition, which is where the operating system is installed.
• /opt/pancfg is where the configuration files and dynamic update files are kept.
• /opt/panrepo is the repository for downloaded operating system (PAN-OS) images.
• /opt/panlogs is the partition where logdatabase is stored.

The disk space usage can be viewed with the following command:

admin@PA-220> show system disk...