diff --git a/metropolis/cli/metroctl/core/install.go b/metropolis/cli/metroctl/core/install.go
index e894079..c20e38d 100644
--- a/metropolis/cli/metroctl/core/install.go
+++ b/metropolis/cli/metroctl/core/install.go
@@ -130,7 +130,7 @@
 	}
 
 	// Create EFI partition structure.
-	for _, dir := range []string{"/EFI", "/EFI/BOOT", "/EFI/metropolis-installer"} {
+	for _, dir := range []string{"/EFI", "/EFI/BOOT", "/metropolis-installer"} {
 		if err := fs.Mkdir(dir); err != nil {
 			panic(err)
 		}
@@ -146,7 +146,7 @@
 		return fmt.Errorf("failed to copy installer file: %w", err)
 	}
 	if args.NodeParams != nil {
-		nodeParamsFile, err := fs.OpenFile("/EFI/metropolis-installer/nodeparams.pb", os.O_CREATE|os.O_RDWR)
+		nodeParamsFile, err := fs.OpenFile("/metropolis-installer/nodeparams.pb", os.O_CREATE|os.O_RDWR)
 		if err != nil {
 			panic(err)
 		}
@@ -156,7 +156,7 @@
 		}
 	}
 	if args.Bundle != nil {
-		bundleFile, err := fs.OpenFile("/EFI/metropolis-installer/bundle.bin", os.O_CREATE|os.O_RDWR)
+		bundleFile, err := fs.OpenFile("/metropolis-installer/bundle.bin", os.O_CREATE|os.O_RDWR)
 		if err != nil {
 			panic(err)
 		}
diff --git a/metropolis/node/build/mkimage/osimage/osimage.go b/metropolis/node/build/mkimage/osimage/osimage.go
index 5aeeccd..d730e68 100644
--- a/metropolis/node/build/mkimage/osimage/osimage.go
+++ b/metropolis/node/build/mkimage/osimage/osimage.go
@@ -42,7 +42,7 @@
 	ESPVolumeLabel = "ESP"
 
 	EFIPayloadPath = "/EFI/BOOT/BOOTx64.EFI"
-	nodeParamsPath = "/EFI/metropolis/parameters.pb"
+	nodeParamsPath = "/metropolis/parameters.pb"
 
 	mib = 1024 * 1024
 )
@@ -87,7 +87,7 @@
 	}
 
 	// Create the EFI partition structure.
-	for _, dir := range []string{"/EFI", "/EFI/BOOT", "/EFI/metropolis"} {
+	for _, dir := range []string{"/EFI", "/EFI/BOOT", "/metropolis"} {
 		if err := fs.Mkdir(dir); err != nil {
 			return fmt.Errorf("while creating %q: %w", dir, err)
 		}
diff --git a/metropolis/node/core/cluster/cluster.go b/metropolis/node/core/cluster/cluster.go
index 144a47b..fe29abd 100644
--- a/metropolis/node/core/cluster/cluster.go
+++ b/metropolis/node/core/cluster/cluster.go
@@ -101,7 +101,7 @@
 	state.oneway = true
 	unlock()
 
-	configuration, err := m.storageRoot.ESP.SealedConfiguration.Unseal()
+	configuration, err := m.storageRoot.ESP.Metropolis.SealedConfiguration.Unseal()
 	if err == nil {
 		supervisor.Logger(ctx).Info("Sealed configuration present. attempting to join cluster")
 		return m.join(ctx, configuration)
@@ -213,7 +213,7 @@
 	} else {
 		supervisor.Logger(ctx).Infof("Retrieved node parameters from qemu fwcfg")
 	}
-	paramsESP, err := m.storageRoot.ESP.NodeParameters.Unmarshal()
+	paramsESP, err := m.storageRoot.ESP.Metropolis.NodeParameters.Unmarshal()
 	if err != nil {
 		supervisor.Logger(ctx).Warningf("Could not retrieve node parameters from ESP: %v", err)
 		paramsESP = nil
diff --git a/metropolis/node/core/localstorage/storage_esp.go b/metropolis/node/core/localstorage/storage_esp.go
index 03f43c7..329b357 100644
--- a/metropolis/node/core/localstorage/storage_esp.go
+++ b/metropolis/node/core/localstorage/storage_esp.go
@@ -34,6 +34,14 @@
 // for the system to bootstrap, register into, or join a cluster.
 type ESPDirectory struct {
 	declarative.Directory
+	Metropolis ESPMetropolisDirectory `dir:"metropolis"`
+}
+
+// ESPMetropolisDirectory is the directory inside the EFI System Partition where
+// Metropolis-related data is stored that's not read by EFI itself like
+// bootstrap-related data.
+type ESPMetropolisDirectory struct {
+	declarative.Directory
 	SealedConfiguration ESPSealedConfiguration `file:"sealed_configuration.pb"`
 	NodeParameters      ESPNodeParameters      `file:"parameters.pb"`
 }
diff --git a/metropolis/node/installer/main.go b/metropolis/node/installer/main.go
index dc72e07..075dbb5 100644
--- a/metropolis/node/installer/main.go
+++ b/metropolis/node/installer/main.go
@@ -197,13 +197,13 @@
 		log.Fatalf("while mounting the installer ESP: %v", err)
 	}
 
-	nodeParameters, err := os.Open("/installer/EFI/metropolis-installer/nodeparams.pb")
+	nodeParameters, err := os.Open("/installer/metropolis-installer/nodeparams.pb")
 	if err != nil {
 		log.Fatalf("failed to open node parameters from ESP: %v", err)
 	}
 
 	// TODO(lorenz): Replace with proper bundles
-	bundle, err := zip.OpenReader("/installer/EFI/metropolis-installer/bundle.bin")
+	bundle, err := zip.OpenReader("/installer/metropolis-installer/bundle.bin")
 	if err != nil {
 		log.Fatalf("failed to open node bundle from ESP: %v", err)
 	}