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Alternatively the bootselect tool can be used, which is usually provided by Flash-N-Go compatible operating systems using Flash-N-Go System as well as by Flash-N-Go System itself.

Configuration tools

Several tools on the Flash-N-Go System solution are provided for configuring, testing and flashing the devices.

bootselect

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bootselect bootselect

This tool offers the possibility to switch the boot target between the flashed operation system (e.g. Linux, Windows Embedded) on the device and Flash-N-Go System itself. The following code block shows a list of all possible parameters:

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FLASH-N-GO:/ bootselect alternative 
alternative

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sconfig sconfig

sconfig

sconfig is a small command line tool which offers functionalities for device configurations like network settings, screen rotation etc. The following code block shows a list of all possible parameters.

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The manual system update considers a manual operating system (OS) installation via a console. The progress can be done locally using mass storage devices or using a network connection. The update process described here requires an Ethernet connection of the device to a development PC, either directly or via intranet. Also a TFTP-Server or HTTP-Server is required on the development PC. There are several, also free, TFTP-Servers and HTTP-Servers online available. Please make sure that the timeout settings of the TFTP-Server are set to 60 seconds at minimum. The installation of target OSes, and Flash-N-Go System and Flash-N-Go Boot should work via console one- or two-liners. All device partitioning, deployment actions should be done by shell scripts executed by the simple command. See Booting Flash-N-Go System for instructions how to boot into the management system.

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From the very first moment when the target is powered, you should see debug messages in the terminal if the standard configuration is set.

Establish a network connection

The Ethernet can be set up with the sconfig command line tool, see also sconfig.

To set the IP address to the static IP 192.168.1.1 with the submask 255.255.255.0 use the following commands:

FLASH-N-GO:/ sconfig ip 192.168.1.1
FLASH-N-GO:/ sconfig mask 255.255.255.0
FLASH-N-GO:/ sconfig dhcp off

To set DHCP and reboot the system to apply the network configuration:

FLASH-N-GO:/ sconfig dhcp on
FLASH-N-GO:/ reboot 

Installation via network

The common concept of the installation is allays similar.

1. Set the download source variable TFTP (or URL for newer installation script versions)

2. Download the installation script (with curl) and

3. Execute the installation script (with sh).

These concatenating these steps the installation can be done in one-liner commands.

Example 1: Install Yocto Daisy 15.0

Download all files within the Linux-Yocto/Releases/Yocto-15.0-r4523-9/prebuilt_images folder of the SECO Nothern Europe support server (formerly known as Garz & Fricke FTP server).

• GUF-Yocto-15.0-r4523-9-SANTARO-boot.cfg

• GUF-Yocto-15.0-r4523-9-SANTARO-fng-install.sh

• GUF-Yocto-15.0-r4523-9-SANTARO-imx6-santaro-x1.dtb

• GUF-Yocto-15.0-r4523-9-SANTARO-imx6-santaro-x2.dtb

• GUF-Yocto-15.0-r4523-9-SANTARO-linuximage.bin

• GUF-Yocto-15.0-r4523-9-SANTARO-modules.tgz

• GUF-Yocto-15.0-r4523-9-SANTARO-pkg.py

• GUF-Yocto-15.0-r4523-9-SANTARO-root.tar.gz

To start the upgrade process use:

export TFTP=tftp://<TFTP-Server IP> ; curl $TFTP/GUF-Yocto-15.0-r4523-9-SANTARO-fng-install.sh | sh

Example 2: Upgrade to Flash-N-Go System 8.0

Download the Flash-N-Go System files listed bellow from the Flash-N-Go/FNGSystem/FNGSystem8.0 folder of the support server.

• Flash-N-Go-System-8.0-python-3.1.4.ext2

• Flash-N-Go-System-8.0-self-init.sh

• Flash-N-Go-System-8.0-self-update.sh

• Flash-N-Go-System-8.0.cpio.gz

• GF_Bootlogo_Flash-N-Go-System.png

• boot-alt.cfg

• fng_wipe_emmc.sh

Additionally download the Kernel Files files listed bellow from the Flash-N-Go/FNGSystem/FNGSystem-8.0/GUFYocto-35.0-r5982-0 directory of the support server. Place them in a subfolder of the TFTP-Server root folder named GUF-Yocto-35.0-r5982-0

• GUF-Yocto-35.0-r5982-0-IMX6GUF-imx6dl-santaro.dtb

• GUF-Yocto-35.0-r5982-0-IMX6GUF-imx6dl-santino-lt.dtb

• GUF-Yocto-35.0-r5982-0-IMX6GUF-imx6dl-santino.dtb

• GUF-Yocto-35.0-r5982-0-IMX6GUF-imx6dl-santoka.dtb

• GUF-Yocto-35.0-r5982-0-IMX6GUF-imx6q-santaro.dtb

• GUF-Yocto-35.0-r5982-0-IMX6GUF-imx6q-santoka.dtb

• GUF-Yocto-35.0-r5982-0-IMX6GUF-linuximage.bin

• GUF-Yocto-35.0-r5982-0-IMX6GUF-modules.ext4

• ParamFile.txt

• md5sums.txt

To start the upgrade process use the following lines

export TFTP=<TFTP-Server IP>
curl tftp://$TFTP/Flash-N-Go-System-8.0-self-update.sh | -s -- --ParamFile=GUF-Yocto-35.0-r5982-0/ParamFile.txt

Example 3: Upgrade Flash-N-Go Boot to version 13.0

Download the Flash-N-Go Boot files listed bellow from the Flash-N-Go/FNGBoot/FNGBoot-v13.0r3476/ directory of the support server.

• GF_iMX6x-FNGBoot-v13.0r3797_26-09-2019.bin

• fng_boot_update.sh

• md5sums.txt

export TFTP=<TFTP-Server IP>; curl tftp://$TFTP/fng_boot_update.sh | sh

Security Considerations

The Flash-N-Go System is designed as management system to install and update target operating systems, and change the device configurations. Thus it runs with root privileges. This may be a concern for some scenarios. Therefore some security considerations are necessary.