VAR-SOM-MX6 Yocto Flash From Net: Difference between revisions

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{{DocImage|category1=VAR-SOM-MX6|category2=Yocto}}
{{DocImage|category1=VAR-SOM-MX6|category2=Yocto}}
__toc__
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= Flashing a complete Yocto system from Network using tftp & nfs  =


== Build mininal file system==
= Flashing a complete Yocto system from Network using TFTP & NFS  =
{{note| NOTES:<br>
#Please make sure your host system is ready to use TFTP/NFS. Use our WIKI if required: [[VAR-SOM-MX6 Yocto Utilizing|TFTP & NFS]]
#Mix and match the nand-recovery version with the system you would like to flash.
#This is a concept Wiki. Please adopt it to your system and your requirements.
#Android can be flashed in the same way.
|info}}


<pre>$ gedit ../sources/poky/meta/recipes-core/images/core-image-minimal-mtdutils.bb
== Build minimal file system==
<pre>
$ gedit ../sources/poky/meta/recipes-core/images/core-image-minimal-mtdutils.bb
</pre>  
</pre>  
Set the image to include:
Set the image to include:
IMAGE_INSTALL += "mtd-utils imx-kobs mtd-utils-ubifs"
IMAGE_INSTALL += "mtd-utils imx-kobs mtd-utils-ubifs"<br>
Build the system:
Build the system:
<pre>$
<pre>
$ bitbake core-image-minimal-mtdutils
</pre>
 
Create a root file system and copy files
<pre>
$ mkdir ~/flash_rootfs
$ sudo tar xvf tmp/deploy/images/var-som-mx6/core-image-minimal-mtdutils-var-som-mx6.tar.bz2 -C ~/flash_rootfs
$ sudo cp tmp/deploy/images/var-som-mx6/uImage /tftpboot
$ sudo cp tmp/deploy/images/var-som-mx6/uImage-imx*.dtb /tftpboot/
$ sudo rename 's/uImage-//' /tftpboot/uImage-*
</pre>
</pre>


== Target  ==
Insert the recovery SD card into your host PC and copy the following files from it (assuming it is mounted at /media):
<pre>
$ sudo mkdir ~/flash_rootfs
$ sudo cp -a /media/rootfs/opt/images ~/flash_rootfs/opt/
$ sudo cp /media/rootfs/usr/bin/*.sh ~/flash_rootfs/usr/bin
</pre>


make sure you have a serial connection to the target.
Boot the board, stop the autoboot to get to the U-Boot command line, and set the following environment variables:
<pre>
=> setenv serverip <your host ip address>
=> setenv bootfile uImage
=> setenv nfsroot /home/<your username>/flash_rootfs
=> setenv console ttymxc0
=> setenv bootcmd 'run netboot'
=> boot
</pre>


reset and hold the space bar. This will brink you to u-boot prompt
On the target flash your system:
<pre>$ setenv serverip 192.168.1.188
<pre>
$ setenv ethaddr a8:cc:3d:d9:b8:f5
$ install_yocto.sh
$ setenv kernel uImage
</pre>
$ setenv nfsroot /home/&lt;uname&gt;/fsl-community-bsp/rootfs
$ setenv bootcmd run bootcmd_net
$ saveenv </pre>
You are all set. Pushing reset on the VAR-SOM-MX6 board will run your Yocto result file system.<br>  


<br>
A complete system is flashed into nand. Once the file system is built you can use it again and again to flash your VAR-SOM-MX6. You can update the images to use your images or custom nand-recovery.sh to your requirements.

Latest revision as of 08:28, 7 June 2017

Flash From Network Yocto system

Flashing a complete Yocto system from Network using TFTP & NFS

NOTES:
  1. Please make sure your host system is ready to use TFTP/NFS. Use our WIKI if required: TFTP & NFS
  2. Mix and match the nand-recovery version with the system you would like to flash.
  3. This is a concept Wiki. Please adopt it to your system and your requirements.
  4. Android can be flashed in the same way.

Build minimal file system

$ gedit ../sources/poky/meta/recipes-core/images/core-image-minimal-mtdutils.bb

Set the image to include: IMAGE_INSTALL += "mtd-utils imx-kobs mtd-utils-ubifs"
Build the system:

$ bitbake core-image-minimal-mtdutils

Create a root file system and copy files

$ mkdir ~/flash_rootfs
$ sudo tar xvf tmp/deploy/images/var-som-mx6/core-image-minimal-mtdutils-var-som-mx6.tar.bz2 -C ~/flash_rootfs
$ sudo cp tmp/deploy/images/var-som-mx6/uImage /tftpboot
$ sudo cp tmp/deploy/images/var-som-mx6/uImage-imx*.dtb /tftpboot/
$ sudo rename 's/uImage-//' /tftpboot/uImage-*

Insert the recovery SD card into your host PC and copy the following files from it (assuming it is mounted at /media):

$ sudo mkdir ~/flash_rootfs
$ sudo cp -a /media/rootfs/opt/images ~/flash_rootfs/opt/
$ sudo cp /media/rootfs/usr/bin/*.sh ~/flash_rootfs/usr/bin

Boot the board, stop the autoboot to get to the U-Boot command line, and set the following environment variables:

=> setenv serverip <your host ip address>
=> setenv bootfile uImage
=> setenv nfsroot /home/<your username>/flash_rootfs
=> setenv console ttymxc0
=> setenv bootcmd 'run netboot'
=> boot

On the target flash your system:

$ install_yocto.sh

A complete system is flashed into nand. Once the file system is built you can use it again and again to flash your VAR-SOM-MX6. You can update the images to use your images or custom nand-recovery.sh to your requirements.