Preparing a USB storage device for image burning.

1. Download and unzip the system image of TRASSIR OS suitable with your NVR from this article Images for creating a system disk with TRASSIR OS;
2. Download and unzip the utility to flash the image tech1production_v5.0;

3. Use the following utility to create a bootable flash drive BalenaEtcher;

   You can use similar programs, such as Rufus or USB image tool

   
   

4. Under "Flash from file" select the image that will be loaded to the flash drive (our tech1production);
5. In the “Select target” option select the flash drive to which we are going to write the image;
6. Press the “Flash” button to record after you have selected all the desired partitions:
   
   
   
7. On the second flash drive, put our unzipped image (it must have the .rbi extension) and the license file in the root.
   The flash drive must be on latin alphabet and must not include special characters in its name.

Writing the image to the built-in SSD disk

1. Plug the prepared flash drives into the USB ports of the NVR;
2. Turn on the NVR. Press the F11 key to enter the boot media selection menu.
   To enter the menu securely, keep pressing and releasing the F11 key until the menu loads.
   If the NVR starts running TRASSIR software, reboot the NVR and try again;

3. In the boot device selection menu, use the up and down arrow keys to select the prepared flash drive (EFI USB Device) from tech1production and press the “Enter” key:
   
   The screenshot shows the selection window, the name of your device can be different.
   
   

   If the prepared flash drive does not appear in the boot device selection menu, try to turn off the recorder, install the drive in another USB port and enter the menu again

4. When booting from the flash drive, you will have a choice between two users. Select the test user and enter the password 1337;
   
   

   !ALERT! Perform steps 5-8 for new drives. If you are overwriting the system, you can skip them and continue with step 9.

5. Once logged in, open the gparted utility using the "sudo gparted" console command or open it through the interface by first clicking on the dots in the lower left corner and then selecting it in the menu that opens:
   
   Or through the console:
   
   
   

   If the interface does not fully load, you can press the alt+t keyboard shortcut to bring up the console

6. The utility will detect the disk and if it does not detect the partition table, it will warn you about it:
   
   
   
7. Click on the “Device” button and select “Create partition table...”:
   
   
   
8. The system will display a window that warns you about deleting all data from the disk and asks you to select the type of the new partition table:
   
   
   Select “gpt”, and click the “Apply” button;
   
9. Next, proceed to flashing the image itself: open the console and type the command "sudo tech1production --full-mode". Then enter the password of the test user which is 1337:
   
   
   
10. Next, click on the three dots in the top right of the techproduction window in the firmware flasher tab and select the path to your .rbi file, it should be located at "/media/second flash drive name/":
    
    In the left column check the SSD-disk we need, in the example it is “119GB ADATA SX6000LNP”;
11. In the license flasher tab, select our license file same as previous and click the “Flash!” button.

Василий Бабак