Hi,

thanks for the fast reply, Michael

* Michael Tokarev [Fri Feb 07, 2014 at 11:36:46AM +0400]:

07.02.2014 11:21, Michael Prokop wrote:

quoted

It would be nice if there would be some way (maybe just checking for
raid=noautodetect in /proc/cmdline?) to disable auto assembly
without having to manually delete/override the udev file.

I don't think that using raid=noautodetect is a good way of doing
this.  It is for the really obsolete in-kernel array assembly, and
it is described as such in the documentation you quoted above.

Right

[...]

None of these parameters, at my point of view, should be considered
after pre-boot is done and we're in the main system.  If you're
talking about main udev rules of mdadm, I disagree, there should
be entirely separate option, if at all.

What is your usage case?  What are you trying to achieve?

[...]

My goal is to support booting a live system (like http://grml.org/)
in a way which *prevents* auto assembling under all circumstances.
This is relevant e.g. for data rescue and forensics tasks.

regards,
-mika-