SIRIS, ALTO, and NAS: Imaging a USB Drive with Datto Utilities



This article describes the method for imaging Datto Utilities onto a USB drive.

Datto Utilities is only compatible with writable USB media. Attempts to run the application from read-only media, such as a CD or DVD, will produce unreliable results.


  • Datto Utilities


The Datto Utilities application includes the Bare Metal Restore (BMR), Rapid Rollback, SIRIS Imaged, and Direct to Cloud Restore environments.

  • The Datto Utilities version of the Bare Metal Restore (BMR) environment is only available for Datto appliances running the Datto IRIS 3 (Ubuntu 16.04) OS. For Datto IRIS 2 (Ubuntu 12.04) appliances, image the USB drive with the Legacy BMR ISO environment, and follow the Legacy Bare Metal Restore process. You can see which version of Ubuntu your Datto device is running on the Advanced Device Status page.
  • If you need to restore to 32-bit hardware, follow the ShadowProtect Bare Metal Restore process.
  • Datto Utilities is incompatible with read-only media, such as CDs and DVDs.


You should have the following items available when starting this process:

  • USB drive that is at least 8GB
  • Datto recommends using the latest version of Rufus to image the drive.
    • See the Additional Resources section of this article for information about alternative imaging methods.
Using Rufus will format your USB drive entirely. Make sure the USB drive contains no valuable data before imaging.

Obtaining the ISO

You can download the Datto Utilities image (.ISO) from the Datto Downloads page by selecting the download link for SIRIS Imaged Installed 16.04, BMR 16.04, or Cloud Continuity Restore. Once the image file has downloaded, proceed to the next section.

Imaging the USB Drive with Rufus

Once you have obtained the image file, proceed as follows.

1. Attach the USB drive to your machine, and open Rufus. Choose the following settings for imaging your USB Drive:

  • Drive Properties
    • Device: Choose the drive letter which corresponds to your flash drive
    • Boot selection: Click Select, and select the Datto Utilities ISO you downloaded.
    • Partition Scheme: Choose MBR
    • Target system: BIOS or UEFI
    • File System: Choose NTFS or FAT32 (Default)
    • Cluster Size: 16 kilobytes
    • Format Options: Select Check device for bad blocks (1 pass),Quick FormatCreate a bootable disk, and Create extended label.

  • Format Options
    • Volume label: DattoUtilities
    • File system: FAT32 (Default)
    • Cluster size: 8192 bytes (Default)
    • Advanced Format options:
      • Quick format: Checked
      • Create extended label and icon files: Checked
      • Check device for bad blocks: Checked, 1 pass

Figure 1: Imaging configuration

3. Select Start

4. If you receive the following prompt, click Yes to download required Linux drivers.

Figure 2: Download required 

5. If you receive the following prompt, select Write in DD Image mode, and click OK.

Figure 3: Write in DD Image mode

Do not select ISO image mode. Using ISO mode creates the Datto Utilities environment as read-only, which can cause issues with its applications.

6. Rufus will notify you when imaging has completed. When it finishes, you can safely remove the USB drive. 

Additional Resources

If you experience difficulty with imaging the USB drive by using Rufus, you can use Etcher(for Windows platforms) or the UNetbootin utility (for Mac or Linux platforms) as fallback solutions.

For Etcher instructions, see the next section of this article. For UNetbootin instructions, see the UNetbootin section of this article.

Using UNetbootin or Etcher will format your USB drive entirely. Make sure the USB drive contains no valuable data before imaging.

Imaging the USB Drive with Etcher

1. Attach the USB drive to your machine, and open Etcher. Click Select image, and select the Datto Utilities ISO.

Figure 4: Select image

2. Etcher will autodetect your flash drive. To select a different drive, click Change.

Figure 5: Change USB drive

3. When you are ready to image the flash drive, click Flash.

Figure 6: Flash

4. Etcher will notify you when imaging has completed. At this stage, you can safely remove the USB drive.

Figure 7: Flash complete

Imaging the USB Drive with UNetbootin

If you are imaging from a Mac or Linux machine, you can use the UNetbootin utility to attach the ISO. Follow the Installing Other Distributions Using UNetbootin section of the article at this link to format the drive.

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