VAR-SOM-MX6 Yocto Recovery SD card V70.1

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

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)

$ gunzip mx6-som-recovery-sd.vXX.img.gz
$ sudo umount /dev/sdX*
$ sudo dd if=mx6-som-recovery-sd.vXX.img of=/dev/sdX bs=1M

(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 downloaded x.img.gz file to get x.img (using 7-Zip 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

Double check that the device is correct to avoid accidentally overwriting a different device.

In the Image File box, choose the x.img file you have extracted previously
Click Write
After a few minutes, you receive a notification that your SD has been created successfully.

Recover NAND flash/eMMC

Power-off the board.
Insert the SD card into the SD card slot of the carrier board (DVK)
Press and hold the boot-select button, and power-on the board while button is pressed
The board will automatically boot into Linux from SD card

Flash from GUI

Click the appropriate button:

Yocto Jethro SOLOCB NAND: Flash Yocto on NAND flash, on VAR-SOLOCustomBoard
Yocto Jethro SOLOCB eMMC: Flash Yocto on eMMC, on VAR-SOLOCustomBoard
Yocto Jethro MX6CB Res NAND: Flash Yocto with Resistive touch panel support on NAND flash, on VAR-MX6CustomBoard
Yocto Jethro MX6CB Cap NAND: Flash Yocto with Capacitive touch panel support on NAND flash, on VAR-MX6CustomBoard
Yocto Jethro MX6CB Res eMMC: Flash Yocto with Resistive touch panel support on eMMC, on VAR-MX6CustomBoard
Yocto Jethro MX6CB Cap eMMC: Flash Yocto with Capacitive touch panel support on eMMC, on VAR-MX6CustomBoard.
Yocto Jethro 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/