diff --git a/metropolis/node/BUILD.bazel b/metropolis/node/BUILD.bazel
index 942a9ab..7ff504f 100644
--- a/metropolis/node/BUILD.bazel
+++ b/metropolis/node/BUILD.bazel
@@ -112,7 +112,7 @@
 
 efi_unified_kernel_image(
     name = "kernel_efi",
-    cmdline = "console=ttyS0,115200 console=tty0 quiet rootfstype=erofs init=/init",
+    cmdline = "console=ttyS0,115200 console=ttyS1,115200 console=tty0 quiet rootfstype=erofs init=/init",
     initrd = [":ucode"],
     kernel = "//third_party/linux",
     os_release = ":os-release-info",
diff --git a/metropolis/node/build/earlydev.fsspec b/metropolis/node/build/earlydev.fsspec
index 1e32803..a7d2ea4 100644
--- a/metropolis/node/build/earlydev.fsspec
+++ b/metropolis/node/build/earlydev.fsspec
@@ -31,7 +31,7 @@
 >
 
 
-# Metropolis core logs to /dev/ttyS0 and /dev/tty0 by default, we want
+# Metropolis core logs to /dev/ttyS{0,1} and /dev/tty0 by default, we want
 # these to also be present before devtmpfs is mounted so that minit can
 # log there, too.
 special_file <
@@ -46,3 +46,9 @@
     major: 4 minor: 64
     mode: 0660 uid: 0 gid: 0
 >
+special_file <
+    path: "/dev/ttyS1"
+    type: CHARACTER_DEV
+    major: 4 minor: 65
+    mode: 0660 uid: 0 gid: 0
+>
\ No newline at end of file
diff --git a/metropolis/node/core/main.go b/metropolis/node/core/main.go
index 08eb39a..715a7ac 100644
--- a/metropolis/node/core/main.go
+++ b/metropolis/node/core/main.go
@@ -48,7 +48,7 @@
 	lt := logtree.New()
 
 	// Set up logger for Metropolis. Currently logs everything to /dev/tty0 and
-	// /dev/ttyS0.
+	// /dev/ttyS{0,1}.
 	consoles := []console{
 		{
 			path:     "/dev/tty0",
@@ -58,6 +58,10 @@
 			path:     "/dev/ttyS0",
 			maxWidth: 120,
 		},
+		{
+			path:     "/dev/ttyS1",
+			maxWidth: 120,
+		},
 	}
 	// Alternative channel that crash handling writes to, and which gets distributed
 	// to the consoles.
diff --git a/metropolis/node/core/minit/main.c b/metropolis/node/core/minit/main.c
index 4677c8e..d92f7ed 100644
--- a/metropolis/node/core/minit/main.c
+++ b/metropolis/node/core/minit/main.c
@@ -29,7 +29,7 @@
 
 void handle_signal(pid_t child_pid, int signum);
 
-#define NUM_CONSOLES 3
+#define NUM_CONSOLES 4
 FILE *consoles[NUM_CONSOLES] = {};
 
 // open_consoles populates the consoles array with FILE pointers to opened
@@ -39,6 +39,7 @@
     consoles[0] = fopen("/dev/console", "w");
     consoles[1] = fopen("/dev/tty0", "w");
     consoles[2] = fopen("/dev/ttyS0", "w");
+    consoles[3] = fopen("/dev/ttyS1", "w");
 
     // Set all open consoles to be line-buffered.
     for (int i = 0; i < NUM_CONSOLES; i++) {