Install Ignition

Run all the commands as root

sudo su

Change Permissions

sudo chmod +x ignition-8.1.25-linux-64-installer.run

Install

sudo ./ignition-8.1.25-linux-64-installer.run

More Info:

https://docs.inductiveautomation.com/display/DOC80/Linux+-+Install

https://docs.inductiveautomation.com/display/DOC80/Gateway+Memory+Allocation