diff --git a/jupiter/hardware-configuration.nix b/jupiter/hardware-configuration.nix
index 98f5e29..d246ca8 100644
--- a/jupiter/hardware-configuration.nix
+++ b/jupiter/hardware-configuration.nix
@@ -13,7 +13,11 @@
 {
   imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
 
-  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "sd_mod" ];
+  # Incl. eMMC/SD modules — root is on the ZimaBlade eMMC, initrd must mount it.
+  boot.initrd.availableKernelModules = [
+    "xhci_pci" "ahci" "usbhid" "sd_mod"
+    "sdhci_pci" "sdhci_acpi" "mmc_block"   # eMMC (mmcblk0)
+  ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ ];
   boot.extraModulePackages = [ ];