diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 4c086dd..cf467c8 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -8,7 +8,7 @@ on:
     branches: [main]
 
 env:
-  BINK_COMMIT: 3ddb9da3b6e33f5dadd48abdb15ed550bbfe4f31
+  BINK_COMMIT: 61899a68d69b0de1114e165d24364bf5b8b6da2e
 
 permissions: {}
 
@@ -172,6 +172,9 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y podman
 
+      - name: Write v2 registries.conf
+        run: printf 'unqualified-search-registries = ["docker.io"]\n' | sudo tee /etc/containers/registries.conf
+
       - name: Start podman socket
         run: systemctl --user start podman.socket
 
diff --git a/Makefile b/Makefile
index c9e5f7d..222a654 100644
--- a/Makefile
+++ b/Makefile
@@ -8,6 +8,7 @@ KUBECONFIG_BINK ?= ./kubeconfig-$(BINK_CLUSTER_NAME)
 ARTIFACTS ?= $(abspath _output/logs)
 DEFAULT_KUBE_MINOR ?= 1.35
 BINK_NODE_DISK_IMAGE ?= ghcr.io/bootc-dev/bink/node:v$(DEFAULT_KUBE_MINOR)-fedora-44-disk
+BINK_NODE_DISK_IMAGE_COMPOSEFS ?= $(BINK_NODE_DISK_IMAGE)-composefs
 BINK_LOCAL_REGISTRY_NODE_IMAGE ?= registry.cluster.local:5000/node
 # YEAR defines the year value used for substituting the YEAR placeholder in the boilerplate header.
 YEAR ?= $(shell date +%Y)
@@ -69,6 +70,7 @@ e2e: ## Run e2e tests (requires: make deploy-bink). V=1 for verbose. RUN=<regex>
 	cd test/e2e && KUBECONFIG=$(abspath $(KUBECONFIG_BINK)) BINK_CLUSTER_NAME=$(BINK_CLUSTER_NAME) \
 		$(if $(BINK_NODE_IMAGE),BINK_NODE_IMAGE=$(BINK_NODE_IMAGE)) \
 		BINK_NODE_DISK_IMAGE=$(BINK_NODE_DISK_IMAGE) \
+		BINK_NODE_DISK_IMAGE_COMPOSEFS=$(BINK_NODE_DISK_IMAGE_COMPOSEFS) \
 		BINK_LOCAL_REGISTRY_NODE_IMAGE=$(BINK_LOCAL_REGISTRY_NODE_IMAGE) \
 		ARTIFACTS=$(ARTIFACTS) \
 		BINK_NODE_IMAGE_DIGEST=$$(skopeo inspect --tls-verify=false --format '{{.Digest}}' docker://localhost:5000/node:latest) \
diff --git a/test/e2e/bootcnode_test.go b/test/e2e/bootcnode_test.go
index 2b57b22..ffb440c 100644
--- a/test/e2e/bootcnode_test.go
+++ b/test/e2e/bootcnode_test.go
@@ -91,16 +91,45 @@ func TestControllerMembership(t *testing.T) {
 	}).WithTimeout(3 * time.Minute).Should(Succeed())
 }
 
+type diskImage struct {
+	name   string
+	envVar string
+}
+
+var diskImages = []diskImage{
+	{name: "ostree", envVar: "BINK_NODE_DISK_IMAGE"},
+	{name: "composefs", envVar: "BINK_NODE_DISK_IMAGE_COMPOSEFS"},
+}
+
+func forEachDiskImage(t *testing.T, fn func(t *testing.T, nodeOpts ...e2eutil.NodeOption)) {
+	t.Helper()
+	for _, di := range diskImages {
+		t.Run(di.name, func(t *testing.T) {
+			img := os.Getenv(di.envVar)
+			if img == "" {
+				t.Skipf("%s not set", di.envVar)
+			}
+			fn(t, e2eutil.WithNodeDiskImage(img))
+		})
+	}
+}
+
 // TestUpdateReboot provisions a worker node, creates a pool with the
 // original image, then updates the pool to a new image and verifies the
 // full update lifecycle: staging, reboot, and idle with the new image.
 func TestUpdateReboot(t *testing.T) {
+	forEachDiskImage(t, testUpdateReboot)
+}
+
+func testUpdateReboot(t *testing.T, nodeOpts ...e2eutil.NodeOption) {
+	t.Helper()
+
 	g := NewWithT(t)
 	g.SetDefaultEventuallyTimeout(pollTimeout)
 	g.SetDefaultEventuallyPollingInterval(pollInterval)
 
 	env := e2eutil.New(t)
-	nodeName := env.AddNode(t)
+	nodeName := env.AddNode(t, nodeOpts...)
 
 	ctx := context.Background()
 
diff --git a/test/e2e/e2eutil/env.go b/test/e2e/e2eutil/env.go
index 77efd88..907eae0 100644
--- a/test/e2e/e2eutil/env.go
+++ b/test/e2e/e2eutil/env.go
@@ -117,9 +117,10 @@ func New(t *testing.T) *Env {
 type NodeOption func(*nodeConfig)
 
 type nodeConfig struct {
-	memory       int
-	labels       map[string]string
-	targetImgRef string
+	memory        int
+	labels        map[string]string
+	targetImgRef  string
+	nodeDiskImage string
 }
 
 // WithMemory sets the VM memory in MB for the node.
@@ -140,6 +141,14 @@ func WithLabel(key, value string) NodeOption {
 	}
 }
 
+// WithNodeDiskImage sets the VM disk image passed as --node-image
+// to bink node add.
+func WithNodeDiskImage(img string) NodeOption {
+	return func(c *nodeConfig) {
+		c.nodeDiskImage = img
+	}
+}
+
 // WithTargetImgRef sets the target image reference for the node,
 // passed as --target-imgref to bink node add. Overrides the automatic
 // default that AddNode applies when registry metadata is available.
@@ -178,8 +187,12 @@ func (e *Env) AddNode(t *testing.T, opts ...NodeOption) string {
 	if cfg.memory > 0 {
 		args = append(args, "--memory", fmt.Sprintf("%d", cfg.memory))
 	}
-	if img := os.Getenv("BINK_NODE_DISK_IMAGE"); img != "" {
-		args = append(args, "--node-image", img)
+	diskImage := cfg.nodeDiskImage
+	if diskImage == "" {
+		diskImage = os.Getenv("BINK_NODE_DISK_IMAGE")
+	}
+	if diskImage != "" {
+		args = append(args, "--node-image", diskImage)
 	}
 	args = append(args, "--target-imgref", cfg.targetImgRef)
 	t.Logf("Adding node %q...", nodeName)
@@ -289,6 +302,7 @@ func (e *Env) gatherLogs(t *testing.T) {
 // Panics if the result exceeds 63 characters (k8s label value limit).
 func sanitizeTestName(name string) string {
 	name = strings.ToLower(name)
+	name = strings.ReplaceAll(name, "/", "-")
 	if len(name) > 63 {
 		panic(fmt.Sprintf("test name %q is %d characters (max 63)", name, len(name)))
 	}