Linux Boot & Init

Beginner: 07-boot-process — the full boot sequence from power button to login.

Reference:

• boot-process — full boot pipeline (UEFI/BIOS → GRUB → initramfs → systemd)
• systemd — units, targets, service files, socket activation, journald
• systemd-timers — systemd’s cron alternative, calendar events, persistent timers
• cron-anacron — cron syntax, anacron for non-always-on machines
• tmpfiles — systemd-tmpfiles.d, volatile runtime directories
• nohup-disown-setsid — running processes that survive terminal close