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diff --git a/usr.sbin/makefs/makefs.8 b/usr.sbin/makefs/makefs.8
--- a/usr.sbin/makefs/makefs.8
+++ b/usr.sbin/makefs/makefs.8
@@ -33,7 +33,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
-.Dd January 5, 2026
+.Dd August 12, 2026
.Dt MAKEFS 8
.Os
.Sh NAME
@@ -452,7 +452,7 @@
.Xr newfs_msdos 8
for more details):
.Pp
-.Bl -tag -width omit-trailing-period -offset indent -compact
+.Bl -tag -width sectors_per_cluster -offset indent -compact
.It Cm backup_sector
Location of the backup boot sector.
.It Cm block_size
@@ -531,36 +531,40 @@
and a value.
The following keywords are supported:
.Pp
-.Bl -tag -width omit-trailing-period -offset indent -compact
-.It ashift
+.Bl -tag -width verify-txgs -offset indent -compact
+.It Cm ashift
The base-2 logarithm of the minimum block size.
Typical values are 9 (512B blocks) and 12 (4KB blocks).
The default value is 12.
-.It bootfs
+.It Cm bootfs
The name of the bootable dataset for the pool.
Specifying this option causes the
.Ql bootfs
property to be set in the created pool.
-.It mssize
+.It Cm mssize
The size of metaslabs in the created pool.
By default,
.Nm
allocates large (up to 512MB) metaslabs with the expectation that
the image will be auto-expanded upon first use.
This option allows the default heuristic to be overridden.
-.It verify-txgs
+.It Cm path
+The path to the device for this vdev.
+The default is
+.Pa /dev/null .
+.It Cm verify-txgs
Prompt OpenZFS to verify pool metadata during import.
This is disabled by default as it may significantly increase import times.
-.It poolguid
+.It Cm poolguid
Use the specified 64-bit integer as the pool GUID.
If this option is not specified, the pool GUID will be random but fixed
across multiple identical invocations of
.Nm .
This option is useful for testing but not required for reproducibility.
-.It poolname
+.It Cm poolname
The name of the ZFS pool.
This option must be specified.
-.It rootpath
+.It Cm rootpath
An implicit path prefix added to dataset mountpoints.
By default it is
.Pa /<poolname> .
@@ -570,7 +574,7 @@
.Pa / .
At least one dataset must have a mountpoint equal to
.Va rootpath .
-.It fs
+.It Cm fs
Create an additional dataset.
This option may be specified multiple times.
The argument value must be of the form
@@ -600,12 +604,12 @@
The following properties may be set for a dataset:
.Pp
.Bl -hang -compact -offset indent
-.It atime
-.It canmount
-.It compression
-.It exec
-.It mountpoint
-.It setuid
+.It Cm atime
+.It Cm canmount
+.It Cm compression
+.It Cm exec
+.It Cm mountpoint
+.It Cm setuid
.El
Note that
.Nm
diff --git a/usr.sbin/makefs/tests/makefs_zfs_tests.sh b/usr.sbin/makefs/tests/makefs_zfs_tests.sh
--- a/usr.sbin/makefs/tests/makefs_zfs_tests.sh
+++ b/usr.sbin/makefs/tests/makefs_zfs_tests.sh
@@ -947,6 +947,50 @@
common_cleanup
}
+#
+# Test setting the path of the vdev.
+#
+# The pool is associated to /dev/md0 by default, i.e., when no path is specified.
+# When the path vdevprops(7) is specified, verify it gets set.
+#
+atf_test_case path_vdev_props cleanup
+path_vdev_props_body()
+{
+ local md zdb_path
+ local vdev_path="/dev/gpt/testdisk"
+
+ create_test_inputs
+
+ atf_check $MAKEFS -s 1g -o rootpath=/ \
+ -o poolname=$ZFS_POOL_NAME \
+ -o path=${vdev_path} \
+ $TEST_IMAGE $TEST_INPUTS_DIR
+
+ # Check the raw path property before import_image.
+ atf_check -o save:$TEST_MD_DEVICE_FILE mdconfig -a -f $TEST_IMAGE
+ zdb_path=$(zdb -C -e -p /dev/$(cat $TEST_MD_DEVICE_FILE) \
+ $ZFS_POOL_NAME 2>/dev/null | awk -F"'" '/path:/ {print $2; exit}')
+ atf_check -o inline:"${vdev_path}\n" echo "$zdb_path"
+
+ # Cleanup before import_image.
+ if [ -f "$TEST_MD_DEVICE_FILE" ]; then
+ md=$(cat $TEST_MD_DEVICE_FILE)
+ if [ -c /dev/"$md" ]; then
+ mdconfig -o force -d -u "$md"
+ fi
+ fi
+
+ # Once imported, the path will be /dev/$(cat $TEST_MD_DEVICE_FILE),
+ # as /dev/gpt/testdisk does not really exist.
+ import_image
+
+ check_image_contents
+}
+path_vdev_props_cleanup()
+{
+ common_cleanup
+}
+
# Verify that file permissions are set properly. Make sure that non-executable
# files can't be executed.
atf_test_case perms cleanup
@@ -1089,6 +1133,7 @@
atf_add_test_case soft_links
atf_add_test_case root_props
atf_add_test_case used_space_props
+ atf_add_test_case path_vdev_props
atf_add_test_case perms
atf_add_test_case T_flag_dir
atf_add_test_case T_flag_F_flag
diff --git a/usr.sbin/makefs/zfs.c b/usr.sbin/makefs/zfs.c
--- a/usr.sbin/makefs/zfs.c
+++ b/usr.sbin/makefs/zfs.c
@@ -86,6 +86,8 @@
0, 0, "Bootable dataset" },
{ '\0', "mssize", &zfs->mssize, OPT_INT64,
MINMSSIZE, MAXMSSIZE, "Metaslab size" },
+ { '\0', "path", &zfs->vdevpath, OPT_STRPTR,
+ 0, 0, "The path to the device for this vdev" },
{ '\0', "poolguid", &zfs->poolguid, OPT_INT64,
0, INT64_MAX, "ZFS pool GUID" },
{ '\0', "poolname", &zfs->poolname, OPT_STRPTR,
@@ -240,6 +242,11 @@
if (zfs->rootpath[0] != '/')
errx(1, "mountpoint `%s' must be absolute", zfs->rootpath);
+ if (zfs->vdevpath == NULL)
+ easprintf(&zfs->vdevpath, "/dev/null");
+ if (zfs->vdevpath[0] != '/')
+ errx(1, "path `%s' must be absolute", zfs->vdevpath);
+
if (zfs->ashift == 0)
zfs->ashift = 12;
@@ -254,6 +261,7 @@
zfs = fsopts->fs_specific;
free(zfs->rootpath);
+ free(zfs->vdevpath);
free(zfs->bootfs);
free(__DECONST(void *, zfs->poolname));
STAILQ_FOREACH_SAFE(d, &zfs->datasetdescs, next, tmp) {
@@ -330,7 +338,7 @@
nvlist_add_uint64(diskvdevnv, ZPOOL_CONFIG_ASIZE, zfs->asize);
nvlist_add_uint64(diskvdevnv, ZPOOL_CONFIG_GUID, zfs->vdevguid);
nvlist_add_uint64(diskvdevnv, ZPOOL_CONFIG_ID, 0);
- nvlist_add_string(diskvdevnv, ZPOOL_CONFIG_PATH, "/dev/null");
+ nvlist_add_string(diskvdevnv, ZPOOL_CONFIG_PATH, zfs->vdevpath);
nvlist_add_uint64(diskvdevnv, ZPOOL_CONFIG_WHOLE_DISK, 1);
nvlist_add_uint64(diskvdevnv, ZPOOL_CONFIG_CREATE_TXG, TXG);
nvlist_add_uint64(diskvdevnv, ZPOOL_CONFIG_METASLAB_ARRAY,
diff --git a/usr.sbin/makefs/zfs/zfs.h b/usr.sbin/makefs/zfs/zfs.h
--- a/usr.sbin/makefs/zfs/zfs.h
+++ b/usr.sbin/makefs/zfs/zfs.h
@@ -79,6 +79,7 @@
/* Pool parameters. */
const char *poolname;
char *rootpath; /* implicit mount point prefix */
+ char *vdevpath; /* vdev path, pool property */
char *bootfs; /* bootable dataset, pool property */
int ashift; /* vdev block size */
uint64_t mssize; /* metaslab size */

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