From: Chris Murphy <lists@colorremedies.com>
To: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: what determines what /dev/ is mounted?
Date: Fri, 18 Dec 2020 14:42:50 -0700 [thread overview]
Message-ID: <CAJCQCtQiaAvNGKUiz28jBiw67rSJWp+Ei2uGet2F=xyaziu0nQ@mail.gmail.com> (raw)
When I have a 2-device btrfs:
devid 1 = /dev/vdb1
devid 2 = /dev/vdc1
Regardless of the mount command, df and /proc/mounts shows /dev/vdb1 is mounted.
If I flip the backing assignments in qemu, such that:
devid 2 = /dev/vdb1
devid 1 = /dev/vdc1
Now, /dev/vdc1 is shown as mounted by df and /proc/mounts.
But this isn't scientific. Is there a predictable logic? Is it always
the lowest devid?
--
Chris Murphy
next reply other threads:[~2020-12-18 21:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-18 21:42 Chris Murphy [this message]
2020-12-19 6:51 ` what determines what /dev/ is mounted? Andrei Borzenkov
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