Linux Host
This section show how to install an operating system to your Helio X20 using the SD Card method on a Linux host computer. ***
- Step 1: Prepare MicroSD card
- Step 2: Find SD Card Device name
- Step 3: Recall Download Location
- Step 4: Unzip SD Card Install Image
- Step 5: Go to directory with SD Card Install Image folder using Terminal
- Step 6: Locate SD Card Install Image
- Step 7: Install Image onto SD Card
- Step 8: Prepare Helio X20 with SD card
- Step 9: Install image onto Helio X20
####Step 1: Prepare MicroSD card
- Ensure data from mircoSD card is backed up
- Everything on microSD card will be lost by the end of this procedure.
####Step 2: Find SD Card Device name
- Use host computer
- Open “Terminal” application
- Remove SD card from host computer and run the following command:
$ lsblk
- Note all recognized disk names
- Insert SD card and run the following command (again):
$ lsblk
- Note the newly recognized disk. This will be your SD card.
- Remember your SD card device name, it will be needed in Step 7.
####Step 3: Recall Download Location
- Locate SD card install file from Downloads page.
- This file will be needed for the next step.
####Step 4: Unzip SD Card Install Image
- When unzipped, you will have a folder with the following contents:
- Install Image (.img)
- Readme
####Step 5: Go to directory with SD Card Install Image folder using Terminal
- Use host computer
- Open “Terminal” application
-
cd
to the directory with your unzipped SD Card Install Image
$ cd <extraction directory>
#Example:
#<extraction directory> = /home/YourUserName/Downloads
#For this example we assume the "SD Card Install Image" is in the Downloads folder.
$ cd /home/YourUserName/Downloads
####Step 6: Locate SD Card Install Image
- Make sure you are in the extraction directory
Unzipped SD Card download will be a folder. This folder should be listed in your directory. Type ls
from command line for a list of files that can be found in your current directory:
$ ls
#output
heliox20_sdcard_install_Y-XX
- Unzipped folder should be called heliox20_sdcard_install_Y-XX, where Y can be Android of debian and XX represents the release number
-
cd
into this directory
$ cd heliox20_sdcard_install_Y-XX
- Inside this folder you will find the install image
db410c_sd_install_Y.img
- This
.img
file is what will be flashed to your SD Card.
####Step 7: Install Image onto SD Card
Checklist:
- SD card inserted into host computer
- Recall SD Card device name from Step 2
- From within the heliox20_sdcard_install_Y-XX folder, using the Terminal execute the following commands:
Execute:
$ sudo dd if=db410c_sd_install_Y.img of=/dev/XXX bs=4M oflag=sync status=noxfer
Note:
-
if=db410c_sd_install_Y.img
: should match the name of the image that was downloaded. -
of=/dev/XXX
: XXX should match the name of the SD Card device name from Step 2. Be sure to use the device name with out the partition. - This command will take some time to execute. Be patient and avoid tampering with the terminal until process has ended.
- Once SD card is done flashing, remove from host computer and set aside for Step 8
####Step 8: Prepare Helio X20 with SD card
- Make sure Helio X20 is unplugged from power
- Set S6 switch on Helio X20 to
0-1-0-0
, “SD Boot switch” should be set to “ON”.- Please see “1.1 Board Overview” on page 7 from Helio X20 Hardware Manual if you cannot find S6
- Connect an HDMI monitor to the Helio X20 with an HDMI cable, and power on the monitor
- Plug a USB keyboard and/or mouse into either of the two USB connectors on the Helio X20
- Insert the microSD card into the Helio X20
- Plug power adaptor into Helio X20, wait for board to boot up.
####Step 9: Install image onto Helio X20
- If Steps 1 - 8 were followed correctly, the above screen should be visible from your Helio X20
- Select the image to install and click “Install” (or type “i”). OS will be installed into the eMMC memory
- This process can take a few minutes to complete
- Upon completion, “Flashing has completed and OS has installed successfully….” message will appear.
Before clicking “OK”:
- Remove the SD Card
- Set S6 switch on Helio X20 to
0-0-0-0
, all switches should be set to “OFF” - Now click “OK” button and allow Helio X20 to reboot.
Congratulations! You are now booting your newly installed operating system directly from eMMC on the Helio X20!