[TUHS] Pre-init initialization

Chris Hanson cmhanson at eschatologist.net
Sat Aug 10 11:45:41 AEST 2019

On Aug 6, 2019, at 4:46 PM, Grant Taylor via TUHS <tuhs at minnie.tuhs.org> wrote:
> Do, or did, anything other than Linux use a concept of an initramfs / initrd to create a pre-(main)-init initialization environment to prepare the system to execute the (main)-init process?

Mach-based UNIX systems (can) have a Mach init that’s separate from UNIX pid 1 init.

When using a non-colocated UNIX subsystem (like the BSD Single Server) I think I recall that’s how the UNIX subsystem is started, along with other Mach tasks like the port name server.

  -- Chris

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