#!/usr/local/bin/ksh93
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# $FreeBSD: releng/12.2/tests/sys/cddl/zfs/tests/cli_root/zpool_import/zpool_import_destroyed_001_neg.ksh 329867 2018-02-23 16:31:00Z asomers $

. $STF_SUITE/include/libtest.kshlib
set_disks

# A destroyed pool cannot be imported, even if an out-of-date non-destroyed
# label is present
#
# This situation arose when a user activated a spare, removed the spare disk,
# destroyed the pool, reinserted the spare disk, and then tried to import the
# pool.  Since the pool was destroyed, nothing should've happened.  But the
# spare disk had a non-destroyed label, so zpool tried to import it.  A panic
# ensued.
#
# More generally, this situation can happen any time the following things happen:
# 1) A disk gets removed with its label intact
# 2) The pool's configuration changes
# 3) The pool gets destroyed
# 4) Somebody tries to import the pool

log_must $ZPOOL create -f $TESTPOOL mirror ${DISK0} ${DISK1}

# Offline a disk so it's label won't get updated by the upcoming destroy
log_must $ZPOOL offline $TESTPOOL ${DISK0}

# Now change the pool's configuration, so DISK0's label will be out-of-date
log_must $ZPOOL attach $TESTPOOL ${DISK1} ${DISK2}

# Destroy the pool, so DISK1's and DISK2's labels will be in the destroyed
# state, leaving DISK0's label as the most recent non-destroyed label
log_must $ZPOOL destroy $TESTPOOL

# Now try to import the pool.  It should fail.
log_mustnot $ZPOOL import $TESTPOOL

log_pass
