DART-6UL Yocto NAND Recovery: Difference between revisions

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{{PageHeader|DART-6UL - Yocto NAND Recovery}} {{DocImage|category1=DART-6UL|category2=Yocto}} __toc__
{{DocImage|category1=DART-6UL|category2=Yocto}}
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 of the SOM.


Variscite provides a recovery SD-card image that can be used to install the pre-built U-Boot, Linux kernel and the UBI file system into the Nand-Flash
== Preparing a recovery SD card ==
This SD card image includes a script (nand-recovery.sh) that installs all the boot images and root file-system.
* Download mx6ul-dart-recovery-sd.vXX.img.gz (latest) which is available on Variscite's FTP: ftp://customerv:Variscite1@ftp.variscite.com/General/DART-6UL/Software
 
* 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)
== Preparing rescue SD-Card: ==
<pre>
$ gunzip mx6ul-dart-recovery-sd.vXX.img.gz
$ sudo umount /dev/sdX*
$ sudo dd if=mx6ul-dart-recovery-sd.vXX.img of=/dev/sdX bs=1M


* Plug-in the supplied SD card to your Linux HOST PC, run dmesg and see which device is added (i.e. /dev/sd<span style="color:red">X</span> or /dev/mmcblk0)
(Replace /dev/sdX with your actual device)
* Download mx6ul-dart-nand-recovery-sd.vXX.img.gz ( latest which is available on Variscite's FTP: ftp://customerv:Variscite1@ftp.variscite.com/DART-6UL/Software/)
<pre>$ gunzip mx6ul-dart-nand-recovery-sd.XX.img.gz
$ sudo dd if=mx6ul-dart-nand-recovery-sd.vXX.img of=/dev/sdX bs=128k
Replace /dev/sdX with your true device, You can find it with dmesg.
</pre>
</pre>


== Booting options for  DART-6UL ==
== Recover NAND flash/eMMC ==
Booting your system requires switching the relevant dip-switch to "Boot from SD-Card".See picture below.
* Power-off the board.
[[File:Boot_switch_6ul1.jpg|thumb|none|upright=2.0]]
* Insert the SD card into the SD card slot of the carrier board (DVK)
* "00" The current position  will set the system to boot from SDCARD. The picture mode
* Make sure the Boot DIP switches are set to SD card: [[DART-6UL Yocto Jethro R1 build#Setting the Boot DIP switches|Setting the Boot DIP switches]]
* "01" Moving the right switch will set the system to boot eMMC
* Power up the board - it will boot into Linux from the SD card
* "10" Moving the left switch will set the system to boot NAND
* "11" is illegal.
Be aware that your system has eMMC or NAND but never both.
 
== Recover Nand Flash==


*Power-off the board
*Insert the SD card into the SD/MMC slot of the carrier board (DVK)
*Switch the relevant dip-switch to "Boot from SD-Card"
*Power-up board
*The board will automatically boot into Linux from SD-Card
=== Flash from GUI ===
=== Flash from GUI ===
[[File:Nandr-6ul-p1.png]]
[[File:DART-6UL_Recovery.png]]
*Press the right arrow on the upper right corner to change the desktop into Utilities.
<br><br>
[[File:Nandr-6ul-p2.png]]
Touch/Click on the appropriate icon:
<br>
* Install Yocto NAND, WiFi: Flash Yocto with WiFi support to NAND flash
*Push Yocto-nand  flash Yocto into nand.
* Install Yocto NAND, SD card: Flash Yocto with SD card support to NAND flash
*Push Yocto-eMMC flash Yocto into eMMC. This option require changes in u-boot environment.
* Install Yocto eMMC (SD/WiFi) : Flash Yocto to eMMC (installs both SD card and WiFi dtbs to the BOOT partition and let U-Boot select between them at boot time)


=== Flash from command line ===
=== Flash from command line ===
*Login as root (no password)
* Login as root (no password)
* From Linux command line, type one of flash options
* From Linux command line, type one of flash options
<pre>$ yocto-emmc.sh - flash Yocto into eMMC (See note below)
<pre>
$ yocto-nand.sh - flash Yocto into nand
$ install_yocto.sh - Flash Yocto into eMMC or NAND Flash (Follow instructions)
</pre>
</pre>


=== SDCARD image file tree ===
=== SD card image file tree ===
<pre>
<pre>
/media/rootfs/opt/images/
/opt/images/
└── Yocto
└── Yocto
     ├── rootfs.sdcard
     ├── imx6ul-var-dart-emmc_wifi.dtb
    ├── imx6ul-var-dart-nand_wifi.dtb
    ├── imx6ul-var-dart-sd_emmc.dtb
    ├── imx6ul-var-dart-sd_nand.dtb
     ├── rootfs.tar.bz2
     ├── rootfs.tar.bz2
     ├── rootfs.ubi.img
     ├── rootfs.ubi
     ├── SPL-nand
     ├── SPL-nand
     ├── SPL-sd
     ├── SPL-sd
     ├── u-boot-nand-2015.04-r0.img
     ├── u-boot.img-nand
     ├── u-boot-sd-2015.04-r0.img
     ├── u-boot.img-sd
    ├── zImage
     └── zImage
    ├── zImage-imx6ul-var-dart-emmc_wifi.dtb
    ├── zImage-imx6ul-var-dart-nand_wifi.dtb
    ├── zImage-imx6ul-var-dart-sd_emmc.dtb
     └── zImage-imx6ul-var-dart-sd_nand.dtb
</pre>
</pre>


<pre>
<pre>
Script files located on /media/rootfs/sbin/
The install_yocto.sh script file is located at /usr/bin/
yocto-nand.sh
nand-recovery.sh
yocto-emmc.sh
</pre>
</pre>

Revision as of 14:29, 11 September 2016

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 of the SOM.

Preparing a recovery SD card

$ gunzip mx6ul-dart-recovery-sd.vXX.img.gz
$ sudo umount /dev/sdX*
$ sudo dd if=mx6ul-dart-recovery-sd.vXX.img of=/dev/sdX bs=1M

(Replace /dev/sdX with your actual device)

Recover NAND flash/eMMC

  • Power-off the board.
  • Insert the SD card into the SD card slot of the carrier board (DVK)
  • Make sure the Boot DIP switches are set to SD card: Setting the Boot DIP switches
  • Power up the board - it will boot into Linux from the SD card

Flash from GUI

DART-6UL Recovery.png

Touch/Click on the appropriate icon:

  • Install Yocto NAND, WiFi: Flash Yocto with WiFi support to NAND flash
  • Install Yocto NAND, SD card: Flash Yocto with SD card support to NAND flash
  • Install Yocto eMMC (SD/WiFi) : Flash Yocto to eMMC (installs both SD card and WiFi dtbs to the BOOT partition and let U-Boot select between them at boot time)

Flash from command line

  • Login as root (no password)
  • From Linux command line, type one of flash options
$ install_yocto.sh	- Flash Yocto into eMMC or NAND Flash (Follow instructions)

SD card image file tree

/opt/images/
└── Yocto
    ├── imx6ul-var-dart-emmc_wifi.dtb
    ├── imx6ul-var-dart-nand_wifi.dtb
    ├── imx6ul-var-dart-sd_emmc.dtb
    ├── imx6ul-var-dart-sd_nand.dtb
    ├── rootfs.tar.bz2
    ├── rootfs.ubi
    ├── SPL-nand
    ├── SPL-sd
    ├── u-boot.img-nand
    ├── u-boot.img-sd
    └── zImage

The install_yocto.sh script file is located at /usr/bin/
Retrieved from "https://variwiki.com/index.php?title=DART-6UL_Yocto_NAND_Recovery&oldid=6679"
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This page was last edited on 11 September 2016, at 14:29.

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