# Nitrowall: Boot from USB

**URL:** https://support.nitrokey.com/t/nitrowall-boot-from-usb/4411
**Category:** NitroWall
**Created:** [September 11, 2022, 10:47am UTC](https://support.nitrokey.com/t/nitrowall-boot-from-usb/4411 "2022-09-11T10:47:49Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![marko](https://support.nitrokey.com/letter_avatar_proxy/v4/letter/m/dbc845/32.png) [@marko](https://support.nitrokey.com/u/marko)
#### Post date: [September 11, 2022, 10:47am UTC](https://support.nitrokey.com/t/nitrowall-boot-from-usb/4411/1 "2022-09-11T10:47:49Z")

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Hi,

I want to install a fresh OPNsense on the Nitrowall. I Have a USB stick which boots fine on other PCs. When I plug the USB stick into the Nitrowall it boots the default OPNsense from the internal SSD. How can I configure the Nitrowall to boot from the USB stick?

Hitting ESC during startup gives this…

 ![image](https://support.nitrokey.com/uploads/default/original/2X/6/675549bed238e8580034f4bd3a32f4f20bc60d03.jpeg)  
I am clueless how to proceed. Any suggestions?

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### Author: ![nesti-nitrokey](https://support.nitrokey.com/user_avatar/support.nitrokey.com/nesti-nitrokey/32/921_2.png) [@nesti-nitrokey](https://support.nitrokey.com/u/nesti-nitrokey)
#### Post date: [September 12, 2022, 11:44am UTC](https://support.nitrokey.com/t/nitrowall-boot-from-usb/4411/2 "2022-09-12T11:44:24Z")

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This is a bit tricky after you press ESC you need to press 2. . If you Spam ESC it defaults to option 1. So it’s a timing thing

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<div class="post-metadata">

### Author: ![marko](https://support.nitrokey.com/letter_avatar_proxy/v4/letter/m/dbc845/32.png) [@marko](https://support.nitrokey.com/u/marko)
#### Post date: [September 23, 2022, 5:14pm UTC](https://support.nitrokey.com/t/nitrowall-boot-from-usb/4411/3 "2022-09-23T17:14:34Z")

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That hit the mark. Thanks. Waited roughly 5 sec and hit ESC once.