linux-lvm.redhat.com archive mirror
 help / color / mirror / Atom feed
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4F86C1F4.4080809@redhat.com \
    --to=bmr@redhat.com \
    --cc=erik.schwalbe@canoo.com \
    --cc=linux-lvm@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).