VAR-SOM-MX6 Yocto Recovery SD card V80plus

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/, install and run it.
Select the image file, and the SD card device - double check that the device is correct to avoid accidentally overwriting a different device.
Click on "Write".
No need to format the SD card before writing the image to it.

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/