Upgrading the ISR FACE API

This section describes the ISR FACE API upgrade process.

Note:

The following examples use <release#> as a placeholder for the appropriate file name you are upgrading to.

Log into the FACE API host using the recommended "isradm" user.
Copy the FACE API upgrade file "isr-Face-<release#>-upgrade.tgz into the /opt/isr/releases directory.
Switch to the root directory by executing the cd / command.
Delete prior ISR RPM packages to avoid confusion with the current version by executing the following command:
```
$ sudo rm /opt/isr/releases/isr-*.rpm
```
Unpack the upgrade file from the root directory by executing the following command:
```
sudo tar xzf /opt/isr/releases/isr-Face-<release #>-upgrade.tgz -C /
```
Run the upgrade script by executing the following command:
```
sudo /opt/isr/releases/upgradeIsr.sh
```
Follow the script's prompts and instructions closely.
Verify the updated build upon completion by executing the following command.
```
yum info isr-Face
```
If the upgrade is successful, the following information displays:
```
Repo        : installed
Summary     : <release#> <build_date>        Face for ISR
```
Run the configuration script with the following command:
```
sudo /opt/isr/configIsr.sh
```
Follow the configuration script's prompts and instructions closely to import public keys from all RSS hosts.