Steve Litt:
...
> /etc/inittab is unique to sysvinit and OpenRC (which uses sysvinit as
> PID1). If we're ever forced to move to another (besides systemd) init,
> we won't have /etc/inittab either, but we'll still be able to do
> everything we did with sysvinit, just differently.
...

busybox init also have /etc/inittab.

Regards,
/Karl Hammar

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