---
# System prepended metadata

title: Holo Nano Image Mastering And Testing
tags: [nano, Holo]

---

Holo Nano Image Mastering And Testing
===

1. Download the installer image: 


2. Using a Linux machine, burn the image to a SD card with sudo dd if=path/to/hpos-for-holoport-nano.img of=/dev/mmcblkX (or /dev/sdX if the card is connected via USB) 


-------- BPI Mastering (No LED) ---------


3. Connect Ethernet cable to HoloPort Nano, insert the SD card, and boot.

4. It should run through some screens including a list with lots of green [ OK ]. 

5. It will then try to install HPOS DIRECTLY to the eMMC. The text will say something about downloading packages I think

6. (Not 100% but high chance) You may see an error like: `unable to download 'https://github.com/.../.tar.gz': SSL peer certificate or SSH remote key was not OK (60) ` a few times and then return to `root@nixos`. This whole failure should take about a minute. If this happens, wait 1 minute and then restart

7. If it starts downloading packages and installing, wait. The installation process takes about 45 minutes. 

8. When finished, it will say installation successful and return to `root@nixos`

9. The master has now been installed on the eMMC

--------- BPI Clone Testing (No LED) -----------

1. Without booting the device, clone the eMMC
2. Write the clone to a new device
3. Turn on the device
4. It should complete boot to arrive at `root@hpos`


--------- Assembler Testing ------------

1. Turn on Nano - LED should start blinking blue
2. Screen should reach `root@hpos`
3. If Nano has an internet connection it should reach solid blue. Without internet connection it should reach flashing purple/pink.







###### tags: `Holo` `nano`