diff --git a/nixos/tests/bcachefs.nix b/nixos/tests/bcachefs.nix
index 146225e72cee..211195586ed9 100644
--- a/nixos/tests/bcachefs.nix
+++ b/nixos/tests/bcachefs.nix
@@ -18,13 +18,13 @@ import ./make-test-python.nix ({ pkgs, ... }: {
         "mkdir /tmp/mnt",
         "udevadm settle",
         "parted --script /dev/vdb mklabel msdos",
-        "parted --script /dev/vdb -- mkpart primary 1024M -1s",
+        "parted --script /dev/vdb -- mkpart primary 1024M 50% mkpart primary 50% -1s",
         "udevadm settle",
         # Due to #32279, we cannot use encryption for this test yet
-        # "echo password | bcachefs format --encrypted /dev/vdb1",
+        # "echo password | bcachefs format --encrypted --metadata_replicas 2 --label vtest /dev/vdb1 /dev/vdb2",
         # "echo password | bcachefs unlock /dev/vdb1",
-        "bcachefs format /dev/vdb1",
-        "mount -t bcachefs /dev/vdb1 /tmp/mnt",
+        "bcachefs format --metadata_replicas 2 --label vtest /dev/vdb1 /dev/vdb2",
+        "mount -t bcachefs /dev/vdb1:/dev/vdb2 /tmp/mnt",
         "udevadm settle",
         "bcachefs fs usage /tmp/mnt",
         "umount /tmp/mnt",