Installing Photon OS on Dell Edge Gateway 300X

You can install Photon OS 3.0 on Dell Gateway 300X. You can download Photon OS as an ISO file and install it.

• Prerequisites
• Installing the ISO Image for Photon OS

Prerequisites

1. Verify that you have the following resources:
   • Dell Edge Gateway 300x.
   • USB pen drive. Format the pen drive with FAT32 with at least 8 GB of space.
2. Download the Photon OS ISO image from Bintray.

Installing the ISO Image for Photon OS

1. Mount the ISO image.

   For example, run the following command on macOS:

   hdiutil mount photon-3.0-ec12f2c.iso

   Use a similar command in other operating systems.

2. Copy the contents of the ISO image to a writable directory so that you can edit files. For example, run the following commands on macOS.

mkdir -p /tmp/photonUsb

cp /Volumes/PHOTON_<timestamp>/* /tmp/photonUsb/
```

where, `/Volumes/PHOTON_<timestamp>` is the directory where the ISO is mounted with the command in the step above.

1. Edit the grub.cfg file to use the kickstart config file:

   cd /tmp/photonUsb

   Add the below parameters to the linux cmd line in boot/grub2/grub.cfg

   linux /isolinux/vmlinuz root=/dev/ram0 loglevel=3 photon.media=UUID=$photondisk ks=cdrom:/isolinux/sample_ks.cfg console=ttyS0,115200n8
   

2. Edit the isolinux/sample_ks.cfg as follows:

   • Change "disk": "/dev/sda”, to "disk": "/dev/mmcblk0",
   • Change "echo \"Hello World\" > /etc/postinstall" to "sed -i 's/PermitRootLogin no/PermitRootLogin yes/g' /etc/ssh/sshd_config"

3. Format the pen drive with FAT-32 and copy all the contents of /tmp/photonUsb to the pen drive.

4. Create a UsbInvocationScript.txt file in the root of the pen drive with below content:

usb_disable_secure_boot noreset; usb_one_time_boot usb nolog;

1. Insert the pen drive in the Dell Gateway 300X and power on the gateway. 
    
    Photon OS installs automatically.

1. After the installation is complete, insert a network cable into the ethernet port and find the IP address corresponding to the MAC address of the Dell Gateway 3000X ethernet port through the DHCP Server or a network analyzer. The MAC address is available on the Dell Gateway 3000X.

1. You can then use `ssh` to access the gateway with the above IP address.