Personal tools

VAR-SOM-MX6 Yocto NAND Recovery V60plus

From Variscite Wiki

Jump to: navigation, search

VAR-SOM-MX6 - Yocto/Android recovery SD card v6x (based on Yocto Jethro)



Variscite provides a recovery SD card image that can be used to install the pre-built U-Boot, Linux kernel and the file system into the internal storage/s of the SOM.

1 Preparing a recovery SD card

$ gunzip mx6-som-recovery-sd.v6X.img.gz
$ sudo umount /dev/sdX*
$ sudo dd if=mx6-som-recovery-sd.v6X.img of=/dev/sdX bs=1M

(Replace /dev/sdX with your actual device)

2 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

2.1 Flash from GUI

VAR-SOM-MX6 Jethro Recovery.png

Click the appropriate button:

2.2 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)

2.3 SD card image file tree

/opt/images/
├── Android
│   ├── SPL
│   ├── SPL.mmc
│   ├── 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
│   ├── boot.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
│   ├── recovery.img
│   ├── system.img
│   ├── u-boot-var-imx6-nand.img
│   └── u-boot-var-imx6-sd.img
└── Yocto
    ├── SPL
    ├── SPL.mmc
    ├── rootfs.tar.bz2
    ├── rootfs.ubi.img
    ├── u-boot.img
    ├── u-boot.img.mmc
    ├── uImage
    ├── uImage-imx6dl-var-som-cap.dtb
    ├── uImage-imx6dl-var-som-res.dtb
    ├── uImage-imx6dl-var-som-solo-cap.dtb
    ├── uImage-imx6dl-var-som-solo-res.dtb
    ├── uImage-imx6dl-var-som-solo-vsc.dtb
    ├── uImage-imx6dl-var-som-vsc.dtb
    ├── uImage-imx6q-var-dart.dtb
    ├── uImage-imx6q-var-som-cap.dtb
    ├── uImage-imx6q-var-som-res.dtb
    └── uImage-imx6q-var-som-vsc.dtb
The install_android.sh & install_yocto.sh script files are located at /usr/bin/