Comment 24 for bug 251164

Can't the udev rule fork and let the child wait for the timeout, then activate the array degraded?

I think the source of my confusion is that upstart is bluring the line between udev, which was designed to do event driven processing in response to hardware detection, and conventional sysvinit, which was designed to run things at startup. Doing this sort of thing with an upstart job makes it dependent on upstart, which means we won't be able to use systemd or sysvinit as alternatives ( which I think makes it a deal breaker for Debian doesn't it? ).

If possible, it would be better to find a way for this processing to be kicked off via udev without depending on upstart, either for later system init, or especially in the initramfs, where adding it would have significant overhead.