> For the complete documentation index, see [llms.txt](https://guide.cronuszen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.cronuszen.com/setup-guides/register-with-linux-without-a-vm.md).

# Register with Linux without a VM

This guide explains step-by-step how to register your Cronus Zen on Linux or using a Chromebook without the need for a Virtual Machine (VM).

{% hint style="danger" %}
The Marketplace feature is currently not functional with this method.
{% endhint %}

## Google Chrome & Access the Firmware Tool

* **Install Google Chrome** if it’s not already installed.
* Visit: [**firmware.modcentral.ca**](https://firmware.modcentral.ca/)
* Connect your **Cronus Zen** in [**bootloader**](/setup-guides/quick-start-guide/step-2-update-firmware.md) mode using the **rear port**.
* Receive an **Access Denied** error? Follow the steps below!

{% hint style="danger" %}

## Received Access Denied Error

* Open a **Terminal window**.
* Reconnect the Zen in **bootloader mode**.
* Run the command: **lsusb**
  * Too many devices? Try: **lsusb | grep ZEN**
* Create a new udev rule file: **sudo nano /etc/udev/rules.d/50-zen.rules**
* Paste the following line into the file:
* **SUBSYSTEM=="usb", ATTR{idVendor}=="1209", ATTR{idProduct}=="2ffb", MODE="0666"**
* Press **Ctrl + X**, then **Y**, then **Enter** to save and exit
* **Reboot your system**.
  {% endhint %}

## :key: Register Your Zen

1. Open Chrome and revisit **firmware.modcentral.ca**
2. Connect your Cronus Zen in bootloader mode and click **Connect**.
3. You should now see your **serial number** and update **firmware** if needed.
4. **Copy your serial number**.

## :checkered\_flag: Final Registration on the Zen Dashboard

1. Go to the new dashboard: [**gpclib.cmindapi.com/login**](https://gpclib.cmindapi.com/login)
2. Log in using your Discord account In the browser's address bar type: **<https://gpclib.cmindapi.com/devices/register?serial=>**<mark style="color:red;">**YOUR\_SERIAL\_HERE**</mark>
3. Replace "<mark style="color:red;">**YOUR\_SERIAL\_HERE**</mark>" with your actual serial number.
4. You should see a Device Registered message and your Cronus Zen will appear in your dashboard.
5. Follow the [**final**](/setup-guides/quick-start-guide/step-3-register-your-zen.md#cronus-discord) **linking step in Discord** to complete setup.

{% hint style="success" %}

## Chromebook user

If you're using a Chromebook, you can skip the udev rules setup and follow these simplified steps:
{% endhint %}

***

## :computer: Chromebook Users

If you're using a Chromebook, you can skip the udev rules setup and follow these simplified steps:

1. Open **Google Chrome** and visit: [**firmware.modcentral.ca**](https://firmware.modcentral.ca/)
2. Connect your **Cronus Zen in bootloader mode** (rear port).
3. Click **Connect** to view your **serial number**.
4. Copy the **serial number**.
5. In new tab go to :
   * **<https://gpclib.cmindapi.com/devices/register?serial=>**<mark style="color:red;">**YOUR\_SERIAL\_HERE**</mark>
6. Replace "<mark style="color:red;">**YOUR\_SERIAL\_HERE**</mark>" with your actual serial number.
7. You'll see a **Device Registered** message.
8. Follow the [**final**](/setup-guides/quick-start-guide/step-3-register-your-zen.md#cronus-discord) **linking step in Discord** to complete setup.

:heart: Special thanks to *Gatsugatsusama (Cronus Zen Discord Moderator)* for the methods.


---

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