2024
Honey - /boot anatomy 0:00 of 23:53
    https://www.youtube.com/watch?v=KIq1CBEX__M
2023
ByteByteGo - How Does Linux Boot Process Work? 0:00 of 4:43
    https://www.youtube.com/watch?v=XpFsMB6FoOs
2013
howtonetwork - Linux LPIC-1 Exam 101 - The Boot Sequence 0:00 of 6:24
    https://www.youtube.com/watch?v=v2ysZ5Vu_5c