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From: Zdenek Kabelac <>
To: LVM general discussion and development <>,
	Demi Marie Obenour <>
Subject: Re: [linux-lvm] Safety of DM_DISABLE_UDEV=1 and --noudevsync
Date: Mon, 4 Apr 2022 10:13:33 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <YkeIb0Lq37D+OtQL@itl-email>

Dne 02. 04. 22 v 1:19 Demi Marie Obenour napsal(a):
> Under what circumstances are DM_DISABLE_UDEV=1 and --noudevsync safe?
> In Qubes OS, for example, I am considering using one or both of these,
> but only for operations performed by qubesd.  systemd-udevd will still
> be running, but it will be told to create no symlinks for the devices
> these commands create or destroy.  systemd-udevd will still be in charge
> of other devices, however, and other lvm2 commands may run that use
> neither of these.

This env variable is not meant to be use on system with running udev.

So it's never safe - and it's only purpose is to be able to make some progress 
in some critical system condition.



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      reply	other threads:[~2022-04-04  8:14 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-01 23:19 [linux-lvm] Safety of DM_DISABLE_UDEV=1 and --noudevsync Demi Marie Obenour
2022-04-04  8:13 ` Zdenek Kabelac [this message]

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