From: Zdenek Kabelac <zdenek.kabelac@gmail.com>
To: LVM general discussion and development <linux-lvm@redhat.com>,
Demi Marie Obenour <demi@invisiblethingslab.com>
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: <f4280579-eba9-ece2-4f5d-af0bf32fce8d@gmail.com> (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.
Regards
Zdenek
_______________________________________________
linux-lvm mailing list
linux-lvm@redhat.com
https://listman.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
prev parent 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]
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=f4280579-eba9-ece2-4f5d-af0bf32fce8d@gmail.com \
--to=zdenek.kabelac@gmail.com \
--cc=demi@invisiblethingslab.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).