diff --git a/tests/zfs-tests/include/blkdev.shlib b/tests/zfs-tests/include/blkdev.shlib
index 28ac1052c3d0..87ffa8560b7e 100644
--- a/tests/zfs-tests/include/blkdev.shlib
+++ b/tests/zfs-tests/include/blkdev.shlib
@@ -423,3 +423,19 @@ function get_debug_device
 {
 	lsscsi | nawk '/scsi_debug/ {print $6; exit}' | cut -d / -f3
 }
+
+#
+# Get actual devices used by the pool (i.e. linux sdb1 not sdb).
+#
+function get_pool_devices #testpool #devdir
+{
+	typeset testpool=$1
+	typeset devdir=$2
+	typeset out=""
+
+	if is_linux; then
+		out=$(zpool status -P $testpool |grep ${devdir} | awk '{print $1}')
+		out=$(echo $out | sed -e "s|${devdir}/||g" | tr '\n' ' ')
+	fi
+	echo $out
+}
diff --git a/tests/zfs-tests/include/libtest.shlib b/tests/zfs-tests/include/libtest.shlib
index 464b59d3f856..3a310680b521 100644
--- a/tests/zfs-tests/include/libtest.shlib
+++ b/tests/zfs-tests/include/libtest.shlib
@@ -806,7 +806,11 @@ function zero_partitions #<whole_disk_name>
 	typeset i
 
 	if is_linux; then
-		log_must parted $DEV_DSKDIR/$diskname -s -- mklabel gpt
+		DSK=$DEV_DSKDIR/$diskname
+		DSK=$(echo $DSK | sed -e "s|//|/|g")
+		log_must parted $DSK -s -- mklabel gpt
+		blockdev --rereadpt $DSK 2>/dev/null
+		block_device_wait
 	else
 		for i in 0 1 3 4 5 6 7
 		do
@@ -834,10 +838,11 @@ function set_partition #<slice_num> <slice_start> <size_plus_units>  <whole_disk
 	typeset start=$2
 	typeset size=$3
 	typeset disk=$4
-	[[ -z $slicenum || -z $size || -z $disk ]] && \
-	    log_fail "The slice, size or disk name is unspecified."
 
 	if is_linux; then
+		if [[ -z $size || -z $disk ]]; then
+			log_fail "The size or disk name is unspecified."
+		fi
 		typeset size_mb=${size%%[mMgG]}
 
 		size_mb=${size_mb%%[mMgG][bB]}
@@ -880,6 +885,10 @@ function set_partition #<slice_num> <slice_start> <size_plus_units>  <whole_disk
 		blockdev --rereadpt $DEV_DSKDIR/$disk 2>/dev/null
 		block_device_wait
 	else
+		if [[ -z $slicenum || -z $size || -z $disk ]]; then
+			log_fail "The slice, size or disk name is unspecified."
+		fi
+
 		typeset format_file=/var/tmp/format_in.$$
 
 		echo "partition" >$format_file
diff --git a/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_003_pos.ksh b/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_003_pos.ksh
index 4c57cb587a7b..3c444ae983dc 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_003_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_003_pos.ksh
@@ -43,6 +43,11 @@ config_count=(1 2)
 set -A DISK $DISKS
 
 default_mirror_setup_noexit $DISKS
+
+DEVS=$(get_pool_devices ${TESTPOOL} ${DEV_RDSKDIR})
+log_note "$DEVS"
+[[ -n $DEVS ]] && set -A DISK $DEVS
+
 log_must dd if=/dev/${DISK[0]} of=/dev/${DISK[1]} bs=1K count=256 conv=notrunc
 
 for x in 0 1 ; do
diff --git a/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_004_pos.ksh b/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_004_pos.ksh
index 2b4057aa76bb..91a5c9799762 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_004_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_004_pos.ksh
@@ -45,17 +45,22 @@ function cleanup
 verify_runnable "global"
 verify_disk_count "$DISKS" 2
 set -A DISK $DISKS
+WHOLE_DISK=${DISK[0]}
 
 default_mirror_setup_noexit $DISKS
-log_must zpool offline $TESTPOOL ${DISK[0]}
+DEVS=$(get_pool_devices ${TESTPOOL} ${DEV_RDSKDIR})
+[[ -n $DEVS ]] && set -A DISK $DEVS
+
+log_must zpool offline $TESTPOOL ${WHOLE_DISK}
 log_must dd if=/dev/urandom of=$TESTDIR/testfile bs=1K count=2
 log_must zpool export $TESTPOOL
+
 log_must dd if=$DEV_RDSKDIR/${DISK[0]} of=$DEV_RDSKDIR/${DISK[1]} bs=1K count=256 conv=notrunc
 
-ubs=$(zdb -lu $DEV_RDSKDIR/${DISK[1]} | grep -e LABEL -e Uberblock -e 'labels = ')
+ubs=$(zdb -lu ${DISK[1]} | grep -e LABEL -e Uberblock -e 'labels = ')
 log_note "vdev 1: ubs $ubs"
 
-ub_dump_counts=$(zdb -lu $DEV_RDSKDIR/${DISK[1]} | \
+ub_dump_counts=$(zdb -lu ${DISK[1]} | \
 	awk '	/LABEL/	{label=$NF; blocks[label]=0};
 		/Uberblock/ {blocks[label]++};
 		END {print blocks[0],blocks[1],blocks[2],blocks[3]}')
diff --git a/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_005_pos.ksh b/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_005_pos.ksh
index c98caed426f6..49e237c7052d 100755
--- a/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_005_pos.ksh
+++ b/tests/zfs-tests/tests/functional/cli_root/zdb/zdb_005_pos.ksh
@@ -45,6 +45,10 @@ verify_disk_count "$DISKS" 2
 set -A DISK $DISKS
 
 default_mirror_setup_noexit $DISKS
+DEVS=$(get_pool_devices ${TESTPOOL} ${DEV_RDSKDIR})
+log_note "$DEVS"
+[[ -n $DEVS ]] && set -A DISK $DEVS
+
 log_must dd if=/dev/zero of=$DEV_RDSKDIR/${DISK[1]} bs=1K count=256 conv=notrunc
 log_must truncate -s 0 $TEMPFILE
 
diff --git a/tests/zfs-tests/tests/functional/inuse/inuse_005_pos.ksh b/tests/zfs-tests/tests/functional/inuse/inuse_005_pos.ksh
index 9dd1e25bf408..6b0abf429dfc 100755
--- a/tests/zfs-tests/tests/functional/inuse/inuse_005_pos.ksh
+++ b/tests/zfs-tests/tests/functional/inuse/inuse_005_pos.ksh
@@ -82,19 +82,18 @@ typeset -i i=0
 
 unset NOINUSE_CHECK
 while (( i < ${#vdevs[*]} )); do
-
 	for num in 0 1 2 3 ; do
 		eval typeset disk=\${FS_DISK$num}
 		zero_partitions $disk
 	done
-
 	typeset cyl=""
 	for num in 0 1 2 3 ; do
 		eval typeset slice=\${FS_SIDE$num}
 		disk=${slice%${SLICE_PREFIX}*}
-		slice=${slice##*${SLICE_PREFIX}}
+		[[ -z $SLICE_PREFIX ]] && eval typeset disk=\${FS_DISK$num}
+		slice=$(echo $slice | awk '{ print substr($1,length($1),1) }')
 		log_must set_partition $slice "$cyl" $FS_SIZE $disk
-	        cyl=$(get_endslice $disk $slice)
+		[[ $num < 3 ]] && cyl=$(get_endslice $disk $slice)
 	done
 
 	if [[ -n $SINGLE_DISK && -n ${vdevs[i]} ]]; then
@@ -115,7 +114,6 @@ while (( i < ${#vdevs[*]} )); do
 		(( i = i + 1 ))
 		continue
 	fi
-
 	create_pool $TESTPOOL1 ${vdevs[i]} $vdisks spare $sdisks
 	verify_assertion "$rawtargets"
 	destroy_pool $TESTPOOL1
diff --git a/tests/zfs-tests/tests/functional/inuse/inuse_008_pos.ksh b/tests/zfs-tests/tests/functional/inuse/inuse_008_pos.ksh
index 95d39d958c3f..ddc8fa7a49c2 100755
--- a/tests/zfs-tests/tests/functional/inuse/inuse_008_pos.ksh
+++ b/tests/zfs-tests/tests/functional/inuse/inuse_008_pos.ksh
@@ -92,9 +92,10 @@ done
 for num in 0 1 2 3 ; do
 	eval typeset slice=\${FS_SIDE$num}
 	disk=${slice%${SLICE_PREFIX}*}
-	slice=${slice##*${SLICE_PREFIX}}
+	[[ -z $SLICE_PREFIX ]] && eval typeset disk=\${FS_DISK$num}
+	slice=$(echo $slice | awk '{ print substr($1,length($1),1) }')
 	log_must set_partition $slice "$cyl" $FS_SIZE $disk
-	cyl=$(get_endslice $disk $slice)
+	[[ $num < 3 ]] && cyl=$(get_endslice $disk $slice)
 done
 
 while (( i < ${#vdevs[*]} )); do
diff --git a/tests/zfs-tests/tests/functional/inuse/inuse_009_pos.ksh b/tests/zfs-tests/tests/functional/inuse/inuse_009_pos.ksh
index 6a9b9623cc87..a5e9fda596dc 100755
--- a/tests/zfs-tests/tests/functional/inuse/inuse_009_pos.ksh
+++ b/tests/zfs-tests/tests/functional/inuse/inuse_009_pos.ksh
@@ -82,13 +82,19 @@ typeset -i i=0
 
 while (( i < ${#vdevs[*]} )); do
 
+	for num in 0 1 2 3 ; do
+		eval typeset disk=\${FS_DISK$num}
+		zero_partitions $disk
+	done
+
 	typeset cyl=""
 	for num in 0 1 2 3 ; do
 		eval typeset slice=\${FS_SIDE$num}
 		disk=${slice%${SLICE_PREFIX}*}
-		slice=${slice##*${SLICE_PREFIX}}
+		[[ -z $SLICE_PREFIX ]] && eval typeset disk=\${FS_DISK$num}
+		slice=$(echo $slice | awk '{ print substr($1,length($1),1) }')
 		log_must set_partition $slice "$cyl" $FS_SIZE $disk
-		cyl=$(get_endslice $disk $slice)
+		[[ $num < 3 ]] && cyl=$(get_endslice $disk $slice)
 	done
 
 	if [[ -n $SINGLE_DISK && -n ${vdevs[i]} ]]; then