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Last modified by Tobias Wintrich on 2026/01/26 10:38
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2 Starting with RangeeOS 13.00, **Secure Boot **can be used on the devices. However, before **Secure Boot **can be enabled on your own hardware, it must be ensured that our Rangee MOK (Machine Owner Key) is installed on the device.
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5 There are **two options** to start the installation of the MOK.
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9 The installation of the MOK consists of **two steps**.
10 The installation process is started via the Kommbox or an installation medium. However, the actual transfer to the BIOS takes place **outside of RangeeOS**.
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12 Please note that this process **cannot be performed remotely**.
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15 {{toc/}}
16
17 = Rolling out the key via... =
18
19 == ... an existing RangeeOS installation ==
20
21 * Navigate in the Kommbox to** System ->** **Bootloader.**
22 * Click the **Enroll **button next to the option **Enroll Rangee SecureBoot Signing key (MOK)**.
23 [[image:1769420162118-671.png||height="192" width="600"]]
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25 * Note the displayed PIN and click **Submit**.
26 [[image:1769420223013-526.png||height="186" width="600"]]
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28 * Restart the client and follow the further instructions.
29
30 == ... a RangeeOS installation medium ==
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34 The options described here are only available when booting ISO files **without the suffix “unattended”** in the file name.
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36
37 * Create a USB stick for the RangeeOS installation as described [[here>>doc:HowTos.USB-Installer.WebHome]].
38 * Boot the client from the USB stick.
39 * (Optional) First perform the installation of RangeeOS on the device.
40 * Select the option **Enroll MOK for Secure Boot**.
41 [[image:1769419349061-481.png||height="412" width="600"]]
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43 * Confirm the security prompt with **Yes.
44 [[image:1769419444164-614.png||height="224" width="600"]]**
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46 * Note the password displayed here.
47 [[image:1769419480776-801.png||height="230" width="600"]]
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49 * Restart the client and follow the further instructions.
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51 = Transferring the key to the BIOS =
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54 After restarting, the client automatically starts the **Shim UEFI Key Management**, which guides you through the required steps.
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56 1. Press any key within **60 seconds** to start the installation of the key. If no key is pressed within this time, the rollout process must be started again.
57 [[image:step1.png||height="450" width="600"]]
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59 1. Select **Enroll MOK**.
60 [[image:step2.png||height="450" width="600"]]
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62 1. Select **Continue**.
63 [[image:step3.png||height="450" width="600"]]
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65 1. Select **Yes**.
66 [[image:step4.png||height="450" width="600"]]
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68 1. Enter the previously noted **PIN**.
69 [[image:step5.png||height="450" width="600"]]
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71 1. Select **Reboot**.
72 [[image:step6.png||height="450" width="600"]]
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74 The rollout of the MOK is now complete. You can now restart the device and enable Secure Boot in the BIOS.