Installing a native Linux distribution on a BlackBerry Passport is and remains difficult due to the device's locked bootloader . While you cannot simply "flash" a Linux ROM as you might on an unlocked Android device, there are ways to experience Linux-like functionality or use the hardware for Linux projects. 1. Running Linux "Inside" BB10 (Simulation)
Let's clear up a massive misconception immediately. The bootloader on the Passport (and most BB10 devices) is locked tighter than a bank vault. BlackBerry’s security pedigree means unsigned code cannot touch the primary boot path. linux on blackberry passport
There are two ways to install: (build it yourself, harder) or Pre-built Images (easier). We will use the pre-built method. Recovery plan: always keep a signed BB10 image
The most active project for bringing native Linux to the Passport is postmarketOS . You cannot install mainline Ubuntu or Fedora directly