The following guidance is ONLY for internal development purpose!!!
Please follow the steps to upgrade the firmware yocto images on your board:
Step1: Setup the tftp server in your Host PC
Step2: Download the upgrade images from below linkage
Get the upgrade image from the Apoidea RD team internally.
Step3: Do tar jxf <xxxxxx>.tar.bz2
rootfs.ext4
Step4: Move rootfs.ext4 to the root directory of tftp server
Step5: Power on the board and keep pressing <ctrl+c> to stop the booting at u-boot command
xhiveai# <INTERRUPT>
Step6: Setup the U-boot environment variables for the upgrading purpose
xhiveai# setenv ipaddr <board ip address>
xhiveai# setenv serverip <tftp server ip address>
xhiveai# setenv gatewayip <gateway ip address>
xhiveai# setenv cms_folder <the absolute path to the root directory of tftp server>
Example: cms_folder=/mnt/data1/ttt/Server/tftpboot/
The upgraded images should be copied to /mnt/data1/ttt/Server/tftpboot on the host PC
xhiveai# saveenv
xhiveai# ping <tftp server ip> // test the network is ok or not
Sometimes, the board network is not working on Uboot and it could be recovered by doing the power cycle(plug out the power supply and plug it in again)
Step8: Burn the rootfs image
xhiveai# run cms_flash_rootfs_a
Step9: Reset the board and enter the Ubuntu system
xhiveai# reset