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But wait. Do most actual trains use the linux kernel? I thought most ones were those traditional cargo ones, without any kind of computing system.
In the US I can comfirm both GE (freight and passenger) and siemens passenger locomotives run Linux. Some passenger trainsets/cars still run embedded XP.
Pretty much all locomotives running out there today have a plethora of computers for managing fuel economy, brakes, and positive train control (rules compliance). Fun fact: the union pacific's 4104 'big boy' steam engine was fitted with wabtec's I-ETMS PTC which is powered by Linux so there's literally a steam powered locomotive running Linux.
That's so cool, thanks for the info and the photo.
Probably means modern high speed trains. Most of them run in China so yeah they likely use Linux.
Do most of the trains in the world use Linux? Sadly no, they probably use coal.