Re: Linux software RAID vs. udev

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On Friday April 30, kpfleming@backtobasicsmgmt.com wrote:
> I'm switching my boxes over to udev and fully hotplug-driven /dev 
> directories.
> 
> However, that means by default I only have /dev/md0 from the MD driver, 
> and if I want to "mdadm --assemble" any other array I have to manually 
> create the device node for it first.
> 
> Is there any chance that mdadm is going to learn how to assemble an 
> array without having the device node for it already present? If so, then 
> the starting of the array would get the device node created (since it 
> would be a new block device) and everything would be happy...

catch-22.  mdadm needed the device to pre-exist.  That is how the md
driver works.

Maybe udev needs to be taught to be more open minded about these
things.

NeilBrown
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