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From: "Bryn M. Reeves" <bmr@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Cc: Erik Schwalbe <erik.schwalbe@canoo.com>
Subject: Re: [linux-lvm] Hide volume group during startup
Date: Thu, 12 Apr 2012 12:52:20 +0100	[thread overview]
Message-ID: <4F86C1F4.4080809@redhat.com> (raw)
In-Reply-To: <1875424017.355888.1334230891233.JavaMail.root@nelson.canoo.com>

On 04/12/2012 12:41 PM, Erik Schwalbe wrote:
> Hi,
> 
> filter was:
> 
> filter = [ "r|/dev/data/kvm_disk0|" ]
> 
> path:
> /dev/data/kvm_disk0 -> ../mapper/data-kvm_disk0

To filter a device-mapper device you also have to filter out the
/dev/dm-N device nodes that udev manages. There's also a symlink from
/dev/$VG_NAME/$LV_NAME to the dm-N node (although I think that should be
handled by filtering /dev/dm-N).

I'd be using something like:

    [ "r|/dev/dm.*|", "r|/dev/$VG_NAME|", "a|.*|"]

Alternately (and I prefer this for many configurations) you can accept
("a|..|") the device you need for the data VG and reject all other
devices ("r|.*|").

> The device name is stable, but what other way of control activation are possible??

Tags but since you're not currently filtering dm-N nodes I would try
that first.

Regards,
Bryn.

  reply	other threads:[~2012-04-12 11:52 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <2049162317.298117.1334137791059.JavaMail.root@nelson.canoo.com>
2012-04-11 10:04 ` [linux-lvm] Hide volume group during startup Erik Schwalbe
2012-04-12 11:11   ` Bryn M. Reeves
2012-04-12 11:41     ` Erik Schwalbe
2012-04-12 11:52       ` Bryn M. Reeves [this message]
2012-04-12 12:14         ` Erik Schwalbe
2012-04-12 12:26           ` Bryn M. Reeves
2012-04-12 13:31             ` Erik Schwalbe
2012-04-12 13:39               ` Bryn M. Reeves
2012-04-12 14:14                 ` Erik Schwalbe
2012-04-12 14:30                   ` Bryn M. Reeves
2012-04-12 14:50                     ` Erik Schwalbe
2012-04-12 12:01       ` Lars Ellenberg
2012-04-12 12:33         ` Erik Schwalbe

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