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:

Please make sure your host system is ready to use TFTP/NFS. Use our WIKI if required: 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.

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.

@@ Line 2: / Line 2: @@
 {{DocImage|category1=VAR-SOM-MX6|category2=Yocto}}
 __toc__
-= Flashing a complete Yocto system from Network using tftp &amp; nfs  =
-== Host  ==
+= Flashing a complete Yocto system from Network using TFTP &amp; 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}}
-Make sure you installed NFS server:
+== Build minimal file system==
-<pre>$ sudo apt-get install nfs-kernel-server
+<pre>
-$ cd ~/var-som-mx6-dora-v3
+$ gedit ../sources/poky/meta/recipes-core/images/core-image-minimal-mtdutils.bb
-$ sudo mkdir rootfs
+</pre>
-$ cd rootfs
-$ sudo tar xvf ../build_mx6q/tmp/deploy/images/vafsl-image-gui-varsommx6q.tar.bz2 </pre><pre>$ sudo gedit /etc/exports </pre>
-add:
-/home/&lt;uname&gt;/var-som-mx6-dora-v3/rootfs *(rw,sync,no_root_squash,no_all_squash,no_subtree_check)
+Set the image to include:
+IMAGE_INSTALL += "mtd-utils imx-kobs mtd-utils-ubifs"<br>
+Build the system:
+<pre>
+$ bitbake core-image-minimal-mtdutils
+</pre>
-exit &amp; save
+Create a root file system and copy files
-<pre>$ sudo /etc/init.d/nfs-kernel-server restart</pre>
+<pre>
-Make sure you installed TFTP server:
+$ mkdir ~/flash_rootfs
-<pre>$ sudo apt-get install xinetd tftpd tftp
+$ sudo tar xvf tmp/deploy/images/var-som-mx6/core-image-minimal-mtdutils-var-som-mx6.tar.bz2 -C ~/flash_rootfs
-Verify:
+$ sudo cp tmp/deploy/images/var-som-mx6/uImage /tftpboot
-$ ls /usr/sbin/in.tftpd
+$ sudo cp tmp/deploy/images/var-som-mx6/uImage-imx*.dtb /tftpboot/
-$ sudo gedit /etc/xinetd.d/tftp
+$ sudo rename 's/uImage-//' /tftpboot/uImage-*
-service tftp
+</pre>
-{
-protocol = udp
-port = 69
-socket_type = dgram
-wait = yes
-user = nobody
-server = /usr/sbin/in.tftpd
-server_args = /tftpboot
-disable = no
-}
-$ sudo mkdir /tftpboot
-$ sudo chmod -R 777 /tftpboot
-$ sudo /etc/init.d/xinetd restart
-$ cp ~/var-som-mx6-dora/buildmx6q/tmp/deploy/images/varsommx6q/uImage /tftpboot</pre>
-== Target  ==
-make sure you have a serial connection to the 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>
-reset and hold the space bar. This will brink you to u-boot prompt
+Boot the board, stop the autoboot to get to the U-Boot command line, and set the following environment variables:
-<pre>$ setenv serverip 192.168.1.188
+<pre>
-$ setenv ethaddr a8:cc:3d:d9:b8:f5
+=> setenv serverip <your host ip address>
-$ setenv kernel uImage
+=> setenv bootfile uImage
-$ setenv nfsroot /home/&lt;uname&gt;/fsl-community-bsp/rootfs
+=> setenv nfsroot /home/<your username>/flash_rootfs
-$ setenv bootcmd run bootcmd_net
+=> setenv console ttymxc0
-$ saveenv </pre>
+=> setenv bootcmd 'run netboot'
-You are all set. Pushing reset on the VAR-SOM-MX6 board will run your Yocto result file system.<br>
+=> boot
+</pre>
-<br>
+On the target flash your system:
+<pre>
+$ install_yocto.sh
+</pre>
+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.

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

Latest revision as of 08:28, 7 June 2017

Contents

Flashing a complete Yocto system from Network using TFTP & NFS

Build minimal file system