VAR-SOM-MX6 Debian Recovery SD card
Variscite provides a recovery SD card image that can be used to install the pre-built Debian images into the internal storage device/s of the SOM.
Download the recovery SD card image
Download var-mx6-debian-recovery-sd.vXX.img.gz (latest) from Variscite's FTP server: ftp://customerv:Variscite1@ftp.variscite.com/VAR-SOM-MX6/Software/debian
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 var-mx6-debian-recovery-sd.vXX.img.gz $ sudo umount /dev/sdX?* $ sudo dd if=var-mx6-debian-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
Boot the board using the SD card.
Flash from command line
- Login as root (user: root, password: root)
- From Linux command line, type the following
$ debian-install.sh - Flash Debian into eMMC (Follow instructions)
SD card image file tree
/opt/images/
└── Debian
├── SPL.mmc
├── SPL.nand
├── 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
├── u-boot.img.mmc
├── u-boot.img.nand
└── uImage
The debian_install.sh script file is located at /usr/sbin/