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Date:      Thu, 16 Sep 2021 13:01:16 -0700
From:      Mark Millard via freebsd-current <freebsd-current@freebsd.org>
To:        freebsd-current <freebsd-current@freebsd.org>
Subject:   zpool import: "The pool cannot be imported due to damaged devices or data" but zpool status -x: "all pools are healthy" and zpool destroy: "no such pool"
Message-ID:  <C312D693-8EAD-4398-B0CD-B134EB278F80@yahoo.com>
References:  <C312D693-8EAD-4398-B0CD-B134EB278F80.ref@yahoo.com>

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What do I go about:

QUOTE
# zpool import
   pool: zopt0
     id: 18166787938870325966
  state: FAULTED
status: One or more devices contains corrupted data.
 action: The pool cannot be imported due to damaged devices or data.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-5E
 config:

        zopt0       FAULTED  corrupted data
          nda0p2    UNAVAIL  corrupted data

# zpool status -x
all pools are healthy

# zpool destroy zopt0
cannot open 'zopt0': no such pool
END QUOTE

(I had attempted to clean out the old zfs context on
the media and delete/replace the 2 freebsd swap
partitions and 1 freebsd-zfs partition, leaving the
efi partition in place. Clearly I did not do everything
require [or something is very wrong]. zopt0 had been
a root-on-ZFS context and would be again. I have a
backup of the context to send/receive once the pool
in the partition is established.)

For reference, as things now are:

# gpart show
=3D>       40  937703008  nda0  GPT  (447G)
         40     532480     1  efi  (260M)
     532520       2008        - free -  (1.0M)
     534528  937166848     2  freebsd-zfs  (447G)
  937701376       1672        - free -  (836K)
. . .

(That is not how it looked before I started.)

# uname -apKU
FreeBSD CA72_4c8G_ZFS 13.0-RELEASE-p4 FreeBSD 13.0-RELEASE-p4 #4 =
releng/13.0-n244760-940681634ee1-dirty: Mon Aug 30 11:35:45 PDT 2021     =
root@CA72_16Gp_ZFS:/usr/obj/BUILDs/13_0R-CA72-nodbg-clang/usr/13_0R-src/ar=
m64.aarch64/sys/GENERIC-NODBG-CA72  arm64 aarch64 1300139 1300139

I have also tried under:

# uname -apKU
FreeBSD CA72_4c8G_ZFS 14.0-CURRENT FreeBSD 14.0-CURRENT #12 =
main-n249019-0637070b5bca-dirty: Tue Aug 31 02:24:20 PDT 2021     =
root@CA72_16Gp_ZFS:/usr/obj/BUILDs/main-CA72-nodbg-clang/usr/main-src/arm6=
4.aarch64/sys/GENERIC-NODBG-CA72  arm64 aarch64 1400032 1400032

after reaching this state. It behaves the same.

The text presented by:

https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-5E

does not deal with what is happening overall.

=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)




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