diff --git a/cmd/earlyinit/main.go b/cmd/earlyinit/main.go
index 4578afbc..d1652e5f 100644
--- a/cmd/earlyinit/main.go
+++ b/cmd/earlyinit/main.go
@@ -137,6 +137,14 @@ func main() {
 		MS_NOSUID|MS_NOEXEC,
 		"mode=620,ptmxmode=666",
 	))
+	must(os.Mkdir("/dev/shm/", 0))
+	mustSyscall("mount shm", Mount(
+		"shm",
+		"/dev/shm/",
+		"tmpfs",
+		MS_NOSUID|MS_NODEV,
+		"",
+	))
 
 	// The kernel might be unable to set up the console. When that happens,
 	// printk is called with "Warning: unable to open an initial console."