[Verse 1] When kernel wakes from silicon dreams at power on Process zero spawns, then fades like morning dawn The handoff moment comes, userspace takes the wheel Three guardians wait to make the system real [Chorus] SysV runs scripts in numbered sequence lines Systemd parallelizes, dependencies align BusyBox strips it minimal, embedded tight Init systems orchestrate the boot from dark to light Remember: Scripts then deps then small Different paths but serve us all [Verse 2] System Five tradition speaks in runlevel tongue Zero halt, six reboot, since Unix days begun Sequential startup crawls through each directory tier While modern systemd races past without the fear [Chorus] SysV runs scripts in numbered sequence lines Systemd parallelizes, dependencies align BusyBox strips it minimal, embedded tight Init systems orchestrate the boot from dark to light Remember: Scripts then deps then small Different paths but serve us all [Verse 3] Systemd targets replace the runlevel game Socket activation waits, services by name D-Bus integration, journal logs combined Binary format stores what syslog left behind [Bridge] BusyBox counts each byte, embedded world demands Single binary holds what other systems expand Ash shell, tiny tools, memory footprint lean Router firmware's choice, the smallest init seen [Chorus] SysV runs scripts in numbered sequence lines Systemd parallelizes, dependencies align BusyBox strips it minimal, embedded tight Init systems orchestrate the boot from dark to light Remember: Scripts then deps then small Different paths but serve us all [Outro] From kernel space to user realm the torch gets passed Init becomes the parent, first child but not last Choose your guardian wisely for the system's birth Three philosophies compete across computing earth
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