From: Pascal <patatetom@gmail.com>
To: linux-lvm@redhat.com
Subject: [linux-lvm] LVM and RO device/partition(s)
Date: Sun, 19 Mar 2023 11:27:32 +0100 [thread overview]
Message-ID: <CAGhAaddYD7Y8ObY6Q3Yprhruzb8s6-q0t+GJUv5oYGLR3LCpRg@mail.gmail.com> (raw)
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hi,
the bio_check_ro function of the blk-core.c source file of the Linux kernel
refers to LVM :
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/block/blk-core.c?h=v6.2.7#n500
how does LVM currently behave when faced with a device marked as readonly ?
does it automatically switch itself in readonly mode?
according to some tests carried out in a virtual machine, it seems that it
doesn't and that LVM modifies the disk/partition(s) even though they are
all readonly (chmod 444 && blockdev --setro).
regards, lacsaP.
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next reply other threads:[~2023-03-20 5:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-19 10:27 Pascal [this message]
2023-03-20 13:57 ` [linux-lvm] LVM and RO device/partition(s) Zdenek Kabelac
2023-03-20 14:15 ` lacsaP Patatetom
2023-03-20 16:37 ` lacsaP Patatetom
2023-03-22 14:11 ` [linux-lvm] LVM and RO device/partition(s Zdenek Kabelac
2023-03-22 14:50 ` lacsaP Patatetom
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