diff --git a/README b/README
index 3cc4a0f..6cdf3a5 100644
--- a/README
+++ b/README
@@ -1,5 +1,5 @@
 
-Config for my moto potter to turn it into a bike computer. We will
+Config for my moto harpia to turn it into a bike computer. We will
 need
 
 - working gps
diff --git a/configuration.nix b/configuration.nix
index 0ffa47e..8a1818c 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -61,6 +61,21 @@ in {
       # "dyndbg=\"file drivers/video/backlight/qcom-wled.c +fmp\""
     ];
 
+    # according to fdisk, /dev/mmcblk0p41 is 30469887-7471104=22998783
+    # blocks, and if we let it get resized by whatever magic this is
+    # (I'm assuming systemd-growfs), on the subsequent boot we'll get
+    # an error
+
+    # EXT4-fs (mmcblk0p41): bad geometry: block count 2883067 exceeds size of device (2874848 blocks)
+
+    # in which neither number matches the reported size (they're both
+    # about 10% of it). cool.
+
+    boot.growPartition = lib.mkForce false;
+    fileSystems."/" = lib.mkDefault {
+      autoResize = lib.mkForce false;
+    };
+
     networking = {
       useDHCP = true;
       hostName = "biscuit";