On Thu, May 17, 2012 at 1:29 PM, francis picabia <[email protected]> wrote:
> I did a couple of upgrades from DVD to a Redhat 4
> system to bring it up to 6.3.  It runs on software MD
> raid.
>
> On boot, it fails to mount anything other than the root
> raid /dev/md0 because the devices for md1 through md4
> are missing in /dev.  If I manually recreate them from
> MAKEDEV I can fsck and mount md1 through md4 fine
> under the maintenance mode.
>
> I thought perhaps MAKEDEV could create the whole /dev
> tree, but it doesn't.  If udev is the way to do this now,
> how do I get it to populate /dev. There might be an earlier
> error happening from whatever process which does this,
> but if I can try it by hand, I might see what it is.
>
> I notice healthy systems have a udevd -d running.
> If I try this manually in maintenance mode,
> I get back:
>
> udevd[714]: error getting socket: Invalid argument

I had trouble seeing the earlier part of the screen over my web based
KVM console before, but at the physical console I can shift-page up to scroll
back and udevd is indeed the earliest error on the console:

Starting udev: udevd[549]: error getting socket: Invalid argument

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