VAR-SOM-MX6 Yocto Recovery SD card V70plus

VAR-SOM-MX6 - Yocto/Android recovery SD card

Variscite provides a recovery SD card image that can be used to install the pre-built Yocto or Andorid images into the internal storage device/s of the SOM.

Download the recovery SD card image

Download mx6-som-recovery-sd.vXX.img.gz (latest) from Variscite's FTP server: ftp://customerv:Variscite1@ftp.variscite.com/VAR-SOM-MX6/Software/

Write the image to an SD card

During the SD card image writing all files and partitions are erased from target device.
Double check that the device is correct to avoid accidentally overwriting a different device and potentially damaging your existing operating system.

Using a Linux based host

Plug-in the SD card to your Linux host PC, run dmesg and see which device is added (i.e. /dev/sdX or /dev/mmcblkX)

$ sudo umount /dev/sdX?*

# For  files:
$  <image name>. | sudo dd of=/dev/sdX bs=1M && sync

(Replace /dev/sdX with your actual device)

Using a Windows based host

Download Win32 Disk Imager from: https://sourceforge.net/projects/win32diskimager/ and install it.
Extract the downloaded image:
- For extracting a .gz file the latest 7-Zip can be used, for example.
- For extracting a .zst file the latest WinRAR can be used, for example.
Insert your SD card into your PC.
No need to format the SD card before writing the image to it, as the card will be formatted once it will be flashed.
Run the file named Win32DiskImager.exe (in Windows 7, 8 and 10 we recommend that you right-click this file and choose “Run as administrator”).
If the SD card (Device) you are using isn’t found automatically. Click on the drop down box and select it.
In the Image File box, choose the .img/.wic file you have extracted previously.
Click Write.
After a few minutes, you receive a notification that your SD has been created successfully.

Using a Mac OS X host

Use the dd Utility for MAC OS X to flash .img/.wic files to your SD card

Recover NAND flash/eMMC

Boot the board using the SD card.

Flash from GUI

Click the appropriate button:

Install Yocto SOLOCB NAND: Flash Yocto on NAND flash, on VAR-SOLOCustomBoard
Install Yocto SOLOCB eMMC: Flash Yocto on eMMC, on VAR-SOLOCustomBoard
Install Yocto MX6CB Res NAND: Flash Yocto with Resistive touch panel support on NAND flash, on VAR-MX6CustomBoard
Install Yocto MX6CB Cap NAND: Flash Yocto with Capacitive touch panel support on NAND flash, on VAR-MX6CustomBoard
Install Yocto MX6CB Res eMMC: Flash Yocto with Resistive touch panel support on eMMC, on VAR-MX6CustomBoard
Install Yocto MX6CB Cap eMMC: Flash Yocto with Capacitive touch panel support on eMMC, on VAR-MX6CustomBoard.
Install Yocto DART (eMMC): Flash Yocto on eMMC, on VAR-DT6CustomBoard
Android SOLOCustomBoard eMMC: Flash Yocto on eMMC, on VAR-SOLOCustomBoard
Android MX6CB Cap: Flash Yocto with Capacitive touch panel support on eMMC, on VAR-MX6CustomBoard
Android MX6CB Res: Flash Yocto with Resistive touch panel support on eMMC, on VAR-MX6CustomBoard
Android DART: Flash Yocto on eMMC, on VAR-DT6CustomBoard

Flash from command line

Login as root (no password)
From Linux command line, type one of flash options

$ install_android.sh	- Flash Android into eMMC (Follow instructions)
$ install_yocto.sh	- Flash Yocto into eMMC or NAND Flash (Follow instructions)

SD card image file tree

/opt/images/
├── Android
│   ├── SPL-mmc
│   ├── SPL-nand
│   ├── boot-imx6q-var-dart.img
│   ├── boot-som-mx6dl-c.img
│   ├── boot-som-mx6dl-r.img
│   ├── boot-som-mx6q-c.img
│   ├── boot-som-mx6q-r.img
│   ├── boot-som-mx6q-vsc.img
│   ├── boot-som-solo-c.img
│   ├── boot-som-solo-r.img
│   ├── boot-som-solo-vsc.img
│   ├── recovery-imx6q-var-dart.img
│   ├── recovery-som-mx6dl-c.img
│   ├── recovery-som-mx6dl-r.img
│   ├── recovery-som-mx6q-c.img
│   ├── recovery-som-mx6q-r.img
│   ├── recovery-som-mx6q-vsc.img
│   ├── recovery-som-solo-c.img
│   ├── recovery-som-solo-r.img
│   ├── recovery-som-solo-vsc.img
│   ├── system.img
│   ├── u-boot-var-imx6-mmc.img
│   └── u-boot-var-imx6-nand.img
└── Yocto
    ├── SPL-nand
    ├── SPL-sd
    ├── imx6dl-var-som-cap.dtb
    ├── imx6dl-var-som-res.dtb
    ├── imx6dl-var-som-solo-cap.dtb
    ├── imx6dl-var-som-solo-res.dtb
    ├── imx6dl-var-som-solo-vsc.dtb
    ├── imx6dl-var-som-vsc.dtb
    ├── imx6q-var-dart.dtb
    ├── imx6q-var-som-cap.dtb
    ├── imx6q-var-som-res.dtb
    ├── imx6q-var-som-vsc.dtb
    ├── rootfs.tar.bz2
    ├── rootfs.ubi
    ├── u-boot.img-nand
    ├── u-boot.img-sd
    └── uImage

The install_android.sh & install_yocto.sh script files are located at /usr/bin/