Preparing a USB drive for image recording

1. Download and unzip the system image with TRASSIR OS suitable for your registrar in the article Choosing an image to create a system disk with TRASSIR OS.
   
   
2. Download and unzip the image of the image recording utility:
   • image_writer_16 — for USB drives with a size of 16 GB. The space for recording the system image with TRASSIR OS is 7.5 GB.
   • image_writer_32 — for USB drives with a size of 32 GB or more. The space for recording the system image with TRASSIR OS is 21 GB.
     
     

3. Download and unzip the utility USB Image Tool.

   You can use other programs to write the image to USB media, for example, balenaEtcher.

4. Launch the USB Image Tool.exe on behalf of the administrator. To do this, right-click on the file and select Run as Administrator in the menu that appears.
   If Windows requests permission to make changes, click Yes.
   
   
5. Go to the Favorites tab. Click the Add button and specify the path to the image_writer_xx.img image.
   
   
   

6. Make sure that the appropriate USB drive is selected on the left side of the window, and the image_writer_xx.img image is in the Favorites tab. Click Restore to start recording the image.
   Wait for the image recording to finish.
   
   
   

7. After recording the image, a disk with the name Images will appear in the system. Copy the system image from TRASSIR OS and the license file to it.
   

   If there is no license file

   • Contact DSSL to get the license file as described     в статье о восстановлении лицензии.
   • you can also not write the license file to a USB drive, the utility will allow you to write only the system image. When you first start the registrar, you will need to download the license file manually or автоматически через интернет.
   +

   If the disk does not appear

   Older versions of Windows (for example, Win7 SP1) may not accept more than one partition on removable devices. 

   Also, in some cases, it happens that Windows sees the partition, but it is not displayed in Explorer because the drive letter was not assigned.

   In this case, press Win+S to open the Windows search bar and start typing the phrase Computer Management until Windows prompts you to open this application.

   In the Computer Management window, switch to Disk Management. Find the recorded USB drive among the disks.
   
   
   

   Right-click on the Images section and select Change Drive letter or Drive Path...
   
   

   Pay attention! In some cases, this operation may cause an error on older versions of Windows (for example, Win7 SP1), to bypass it, you can use a PC with a newer version of Windows (for example, Win10).

   
   
   

   In the window that appears, click Add.
   
   
   

   In the new window, click ОК.
   
   
   

   After that, the disk will appear in the system. Close the Computer Management window.

Writing an image to the built-in memory

1. Connect the prepared USB drive to one of the USB ports of the recorder.
   
   
2. Turn on the recorder. Press the F12 key to enter the media selection menu for downloading.
   To securely enter the menu, keep pressing and releasing the F12 key until the menu loads. If the registrar has started running TRASSIR software, restart the registrar and try again.
   
   

3. In the Boot media selection menu, use the up and down arrow keys to select the prepared USB drive (EFI USB Device) and press Enter.
   

   If the prepared USB drive does not appear in the boot media selection menu, try turning off the recorder, installing the drive in another USB port and entering the menu again.

4. If everything is done correctly, instead of downloading the TRASSIR software, tech1production will start downloading.
   
   The image recording will start automatically after about 30 seconds.
   If instead of recording the image, a black screen with a toolbar is displayed, which means that for some reason the script autorun did not work.
   
   In this case, the launch can be performed manually
   
5. Image recording will begin
   
   
   
   
   1. If several images are recorded on the media, the recording script displays a list of them and prompts you to select the one you need. Enter the number of the desired image and press Enter.
      
      
      
   2. If several license files for the security key installed in the registrar are recorded on the media, the recording script will display a list of them and prompt you to select the one you need. Enter the license file number and press Enter.
      
      
      
6. When the image is written to the built-in memory, the recording script turns off the NVR.
   
7. Disconnect the USB drive from the recorder.

Aleksandr Savkin