diff --git a/components/kubeadm/v20260301/join.go b/components/kubeadm/v20260301/join.go
index 56b22ab..962a560 100644
--- a/components/kubeadm/v20260301/join.go
+++ b/components/kubeadm/v20260301/join.go
@@ -267,8 +267,8 @@ func (n *nodeJoinAction) runJoin(
 		return status.Errorf(codes.Internal, "resolve kubeadm binary: %s", err)
 	}
 
-	if err := utilexec.New().CommandContext(ctx, kubeadmCommand, "join", "--config", joinConfig, "-v", "5").Run(); err != nil {
-		return status.Errorf(codes.Internal, "kubeadm join: %s", err)
+	if output, err := utilexec.New().CommandContext(ctx, kubeadmCommand, "join", "--config", joinConfig, "-v", "5").CombinedOutput(); err != nil {
+		return status.Errorf(codes.Internal, "kubeadm join: %s\n%s", err, string(output))
 	}
 
 	return nil
diff --git a/components/kubeadm/v20260301/reset.go b/components/kubeadm/v20260301/reset.go
index a4926fa..c518158 100644
--- a/components/kubeadm/v20260301/reset.go
+++ b/components/kubeadm/v20260301/reset.go
@@ -75,10 +75,10 @@ func (n *nodeResetAction) runReset(ctx context.Context) error {
 	// --force skips the interactive confirmation prompt and proceeds even
 	// when the node is unreachable by the control plane.
 	// -v 5 provides verbose output for debugging.
-	if err := utilexec.New().CommandContext(
+	if output, err := utilexec.New().CommandContext(
 		ctx, kubeadmBinary, "reset", "--force", "-v", "5",
-	).Run(); err != nil {
-		return status.Errorf(codes.Internal, "kubeadm reset: %s", err)
+	).CombinedOutput(); err != nil {
+		return status.Errorf(codes.Internal, "kubeadm reset: %s\n%s", err, string(output))
 	}
 
 	return nil