linux-kernel - Re: [dm-devel] linux-2.6.35+ causes LVM to fail with " device-mapper: version ioctl failed: Inappropriate ioctl for device"

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Message-ID: <20100815130336.GA24055@agk-dp.fab.redhat.com>
Date:	Sun, 15 Aug 2010 14:03:36 +0100
From:	Alasdair G Kergon <agk@...hat.com>
To:	Jeff Chua <jeff.chua.linux@...il.com>
Cc:	device-mapper development <dm-devel@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>, lvm-devel@...hat.com
Subject: Re: [dm-devel] linux-2.6.35+ causes LVM to fail with "
	device-mapper: version ioctl failed: Inappropriate ioctl for device"

> Just a vanilla linux. No udev.

So likely a userspace problem where udev is now assumed to be present.
 
> > Provide long listing of /dev/mapper and any dm/lvm devices in /dev.

You can do that by running:
  ls -l /dev/mapper /dev/vg01

Also:
  cat /proc/devices
  cat /proc/misc

Alasdair

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