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Creating a USB flash startup disk

In Windows environment

Burning the ISO image will erase all existing information from the USB drive.

  1. Download Rufus software and open the downloaded file.
  2. Choose the designated USB flash disc in the Device:
    Screenshot_83.png
  3. Select Disc or ISO image in Boot Selection.
  4. Click on Select and open the downloaded SafeUTM image.
  5. All other settings remain default.
  6. Click on Start.
  7. In the drop-down menu select Write in DD image mode.
  8. A dialog window will pop up for you to confirm USB flash drive write.

Further on follow the instructions of the installation wizard. SafeUTM installation steps are described in The installation process.

In Linux environment

In order to create a USB flash startup disc in Linux all you need is copy blocks of SafeUTM ISO image to your device. Below two ways to do it are described:

Using the command gnome-disks
Screenshot_85.png

Manually

  1. Check image integrity:

1 $ md5sum /home/SafeDNS/SafeUTM.iso
2 8c872cb6b720f6fd6683107681645156 /home/SafeDNS/SafeUTM.iso

The size must be the same as in the account the image was downloaded from. If the number is different, the file is corrupted and needs to be downloaded again.

  1. Find the USB flash disc in the system:

1 $ lsblk --nodeps  -o name,size,fstype,tran,model,mountpoint /dev/sd*
2 NAME  SIZE FSTYPE TRAN MODEL        MOUNTPOINT
3 sdx   7,5G        usb  USB_DISK_3.0
4 sdx1  7,5G vfat                     /run/media/SafeDNS/D661-82E2

We can see there is /dev/sdx USB flash disc, as well as the file system mounted on it.

  1. Unmount the file system:

1 sudo umount /run/media/SafeDNS/D661-82E2

  1. Write image to the disc:

1 $ sudo dd if=/home/SafeDNS/SafeUTM.iso of=/dev/sdx bs=1M oflag=direct status=progress

  1. Prepare the disc to be extracted:
 

1 $ sudo eject /dev/sdx