> For the complete documentation index, see [llms.txt](https://documentation.ocsinventory-ng.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.ocsinventory-ng.org/administrator-docs/agent-setup/installation-methods/using-official-repositories-linux.md).

# Linux installation

OCS Inventory provides official package repositories for common Linux distributions. This is the recommended installation method when available: it installs prebuilt binaries (no Dart SDK required) and lets you upgrade/uninstall using the system package manager.

### Supported platforms

* Linux distributions using APT (Debian based) or RPM (RHEL based)
* Architecture: `amd64` / `x86_64` only

### Installation

{% tabs %}
{% tab title="Using Debian repositories" %}
{% stepper %}
{% step %}

#### **Add the OCS Inventory repository**

Add the OCS Inventory repository. This imports the GPG key used to sign OCS Inventory packages and registers the APT repository.

Replace `<distribution_codename>` with your system’s codename.

Supported codenames:

* Debian: `bookworm`, `trixie`
* Ubuntu: `jammy`, `noble`, `plucky`

```bash
curl -fsSL https://deb-v3.ocsinventory-ng.org/repo-signing-key.gpg | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/ocs-archive-keyring.gpg
echo "deb https://deb-v3.ocsinventory-ng.org/ <distribution_codename> main" | sudo tee /etc/apt/sources.list.d/ocsinventory.list
sudo apt update
```

This installs:

* `/etc/apt/trusted.gpg.d/ocs-archive-keyring.gpg` - the public GPG key used to verify package signatures
* `/etc/apt/sources.list.d/ocsinventory.list` - the repository definition
  {% endstep %}

{% step %}

#### Install the packages <a href="#install-the-packages" id="install-the-packages"></a>

```bash
sudo apt install ocsinventory-agent
```

{% endstep %}
{% endstepper %}
{% endtab %}

{% tab title="Using RPM repositories" %}
{% stepper %}
{% step %}

#### **Add the OCS Inventory repository**

The `ocsinventory-release` package configures the YUM/DNF repository and imports the GPG key used to sign OCS Inventory packages.

```bash
sudo dnf install -y https://rpm-v3.ocsinventory-ng.org/rpm/ocsinventory-release-latest.[elX|fcXX].noarch.rpm
```

> Replace `elX` or `fcXX` with the version matching your operating system, from those supported by OCS Inventory:
>
> * **Enterprise Linux** (RHEL, Rocky, AlmaLinux): `el9`, `el10`
> * **Fedora**: `fc42`, `fc43`, `fc44`

This installs:

* `/etc/yum.repos.d/ocsinventory.repo` - the repository definition
* `/etc/pki/rpm-gpg/RPM-GPG-KEY-ocsinventory` - the public GPG key, imported automatically on install

The key is **not** imported at this point. DNF imports it automatically the first time a package is actually installed from the `ocsinventory` repository (see step 2), prompting you to confirm the key fingerprint unless `assumeyes` is set.
{% endstep %}

{% step %}

#### Install the packages <a href="#install-the-packages-1" id="install-the-packages-1"></a>

```bash
sudo dnf install -y ocsinventory-agent
```

On this first install from the `ocsinventory` repository, DNF prompts you to confirm and import the GPG key. Once accepted, you can verify it was imported with:

```bash
rpm -qa gpg-pubkey* --qf '%{name}-%{version}-%{release} --> %{summary}\n' | grep -i ocsinventory
```

{% endstep %}
{% endstepper %}
{% endtab %}
{% endtabs %}

### Silent installation

The agent can be installed and configured without any prompt, for mass deployment.

`DEBIAN_FRONTEND=noninteractive` is what makes the installation silent: on a fresh install, the package runs the interactive setup wizard whenever it detects a terminal. Without the wizard, the package configures the agent in local mode (`mode: 4`) with an empty server URL, so a second command is needed to point it at your server:

```bash
sudo DEBIAN_FRONTEND=noninteractive apt-get install -y ocsinventory-agent

sudo ocsinventory-cli --overwrite_config true \
  --url http://server_ip:port \
  --username username \
  --password password \
  --mode 1 \
  --log_level 3
```

The second command writes those values to `/etc/ocsinventory-agent/config.json` and runs a first inventory, so a zero exit code means the agent is configured and reached the server. Only the options you pass are written, so pass at least `--url`, `--username`, `--password` and `--mode`.

The package installs the systemd unit but leaves it stopped. Enable it to get periodic inventories:

```bash
sudo systemctl enable --now ocsinventory-agent.service
```

{% hint style="warning" %}
Silent mode prints nothing on stdout, the full log is written to `install.log` next to the script. A silent run on a host where the agent already exists removes the existing configuration, logs and data before reinstalling, so use the `--overwrite_config` command above to reconfigure an already-installed agent.
{% endhint %}

### Post-Install Configuration

There are three ways to configure the agent after installation:

* **Run the interactive setup**, which walks you through the configuration step by step:

```bash
  sudo /usr/share/ocsinventory-agent/install.sh
```

* **Edit the configuration file directly**:

```bash
  sudo nano /etc/ocsinventory-agent/config.json
```

* **Persist settings via the CLI**, using `--overwrite_config true`:

```bash
  sudo ocsinventory-cli --overwrite_config true \
    --mode 2 \
    --url http://server_ip:port \
    --username username \
    --password password
```

### Verification

* Package name: `ocsinventory-agent`
* Command to run the agent: `ocsinventory-cli`
* Files:
  * `/usr/local/bin/ocsinventory-cli` (installed binary)
  * `/usr/bin/ocsinventory-cli` (symlink)
  * `/etc/ocsinventory-agent/config.json` (main config)
  * `/usr/share/ocsinventory-agent/` (install/uninstall helper scripts + service file)

Run the agent with:

```
sudo ocsinventory-cli
```

* Local modes (`3`/`4`): check for a new inventory file in your `data_directory`.
* Remote modes (`1`/`2`): confirm the asset appears/updates on the server.

{% hint style="info" %}
For configuration details, see [Configuration](/administrator-docs/agent-setup/configuration.md).
{% endhint %}


---

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