[Ubi] Wrong major:minor

[Gilles]

On Mon, 30 May 2011 12:29:56 -0400, Mike Frysinger
<vapier.adi at gmail.com> wrote:

>On Mon, May 30, 2011 at 05:53, Gilles wrote:
>>            #BAD echo /sbin/mdev > /proc/sys/kernel/hotplug;
>
>i dont know why you've disabled this.  if you want dynamic nodes after
>boot, you need it.

Because...
1. of that error:
====
Starting mdev...
sh: can't open '/proc/sys/kernel/hotplug': No such file or directory
====

2. and because I don't actually need hotplugging, since the appliance
is a closed-box, so users can't actually (un)plug devices anyway.

I just needed mdev so that Linux would create the right dev nodes for
Ubi.

Thank you.