Install Sophos UTM from USB

sophos Jul 30, 2017

Sophos UTM

Free Home Use Firewall is a fully equipped software version of the Sophos UTM firewall, available at no cost for home users – no strings attached. It features full Network, Web, Mail and Web Application Security with VPN functionality and protects up to 50 IP addresses.

Sound good? Head over to Sophos UTM Home

Click on Get Started, fill in your details and download the Software UTM iso.

Once you have the UTM.iso we will need a program to create a bootable usb. For this we use Rufus.

  • Download Rufus from
  • For this I used a 4GB usb pen
  • Run Rufus,
  • Partition scheme - MBR for BIOS or UEFI
  • File System - FAT32
  • Cluster - 4096 bytes
  • New Volume label - anything
  • Quick Formet - yes
  • Create a bootable disk using iso - choose the UTM.iso
  • Click Start
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Once the USB drive is ready we can attempt to start the build.

When installing the UTM software it runs in RAM, to get it to work we need to mount it. We need to use the console interface to do this.

Insert the USB into a port, and boot to USB. You should then see this

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Once its booted and you see the screen below press ALT + F2, this will bring up the console screen.

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We now need to mount the USB Drive by using the command

mount /dev/sdb1 /install

Press ALT + F1 to switch back to the installer windows and continue with the installation.

If you see the error below

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It means the USB drive is located at a different device ID rather than sdb1.

Go back to console using ALT + F2 and type

fdisk -l


sfdisk -l

Its a small L

This will list the Device ID, then type

mount /dev/**Deivce ID** /install

When the install is finished you will be able to connect to the UTM software using a web browser by navigating to https://IP-ADDRESS:4444

The rest of the config is then configured through the web browser.

To be continued....


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