> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/tmedia-documentation/server-and-os-administration/upgrade-centos-software-packages.md).

# Upgrade CentOS software packages

### Benefits

* Obtain the CentOS security updates
* Patch recent vulnerabilities
* Patch SNMP core files

### Applicable Products

* TMG800, TMG3200, TMG7800-CTRL, TSBC, FreeSBC, ProSBC
* TSG800, TSG3200
* Tdev Linux server (CentOS or RedHat) running Toolpack software

### TelcoBridges repository

The operating system (CentOS) software upgrade is performed using *yum* software package manager. The repositories sites providing RPM packages are configured from /etc/yum.repos.d/. TelcoBridges provides a modified CentOS repository copy (<http://repo.telcobridges.com>) of the official CentOS repository.

If the **unit or Linux server does not have access to Internet** (or does not have DNS configured), you should configure an offline CentOS repository on your local machine as explained in the section bellow.

#### Offline repository configuration

First, SSH to your unit do determine which version of the OS your system is using:

1. cat /etc/redhat-release **CentOS release 5**.11 (Final)

* [Configure a local offline Repository for CentOS5](https://github.com/telcobridges-main/tmedia-wiki/tree/main/tmedia/operations/offline-repository-procedure-for-centos-7/README.md)

**CentOS Linux release 7**(Core)

* [Configure a local offline Repository for CentOS7](https://github.com/telcobridges-main/tmedia-wiki/tree/main/tmedia/operations/offline-repository-procedure-for-centos-7/README.md)

### CentOS software packages update

The operator can use one of the two methods available: GUI/WebPortal or command line interface.

#### WebPortal

To upgrade CentOS software packages, follow this procedure from the web interface of the unit:

* Hosts -> Status -> TBxxxxxx -> Action -> Upgrade Linux Packages, then 'Apply Action': ![Upgrade Linux Packages](https://docs.telcobridges.com/w/images/7/7d/Upgrade_Linux_Packages.jpg)

When the upgrade is in progress, there is no status shown, and you will see the screen like this:

![Upgrade Linux Progress](https://docs.telcobridges.com/w/images/a/a0/Upgrade_Linux_Progress.jpg)

It may take a while 8-10 mins. You need to refresh the page until you see this:

![Centos Upgrade Complete](https://docs.telcobridges.com/w/images/d/d4/Centos_Upgrade_Complete.jpg)

Once complete, you need to reboot the host: Hosts -> Status -> TBxxxxxx -> Action -> Shutdown -> Reboot

#### Command line

Alternatively, you can ssh to the unit and run the following command:

1. yum clean all
2. yum update
3. yum group update

Reboot the unit

1. reboot

### Other Links

* Here is a link to the main [TelcoBridges repository](https://repo.telcobridges.com/centos/7/os/x86_64/Packages/)
* Here is a link to [upgrade the Telcobridges Linux](https://github.com/telcobridges-main/tmedia-wiki/tree/main/tmedia/operations/upgrade-telcobridges-linux-software-packages/README.md)


---

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