Many Linux developers and users know that Bootloader boots Linux Kernel which starts Userspace.
But what is behind that?
Linux Boot process is very similar to the Big Bang which happened in our world: from singularity to the whole beautiful Universe of running Linux processes. What do you think is a black hole equivalent in the Linux? Come to hear about all of that from an engineer who worked on a new processors and boards bringup, Linux boot process modifications and did boot time optimization many times.