misc: support upstart within an initramfs

This is one possible future for initramfs-tools. yes

First step to allow using upstart in initramfs would probably be an option to copy/run upstart into initramfs by adding an initramfs-hook script to the upstart package.

http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/lucid/initramfs-tools/lucid/annotate/head%3A/docs/example_hook

Bear in mind that Upstart would have to be the initramfs /init just as its the real system /sbin/init - it has to be PID 1

One of the main pre-requisites for this is state passing; so that the upstart in the initramfs would be able to re-exec itself once the root is mounted and then pass its state to the new instance

If we would have a defined state at the and of the initramfs boot, say "rootfs fully set up" implying all its dependencies would we still need state passing? Or could the main upstart take it from there.

On Sun, 2010-04-25 at 08:21 +0000, ceg wrote:

> If we would have a defined state at the and of the initramfs boot, say
> "rootfs fully set up" implying all its dependencies would we still need
> state passing? Or could the main upstart take it from there.
>
I think we should do it properly and pass all state, there may be
services running from the initramfs that match services from the real
system - udev, plymouth, bootchart, etc. are all examples *today* where
we use a hack to pass the pid into Upstart

Scott
--
Have you ever, ever felt like this?
Had strange things happen? Are you going round the twist?

Thanks for the insight!

Several years have passed and upstart got replaced by systemd. So marking this bug as Won't Fix.