diff --git a/installer.nix b/installer.nix
index 8d8b291..5dd0149 100644
--- a/installer.nix
+++ b/installer.nix
@@ -93,6 +93,7 @@ if nix eval --refresh --json  --extra-experimental-features "flakes nix-command"
         --flake "''${FLAKE_BASE_URL}#''${choice}"
 else
     echo "Selected host has no Disko configuration."
+    mount /dev/sda /mnt
 fi
 
 mkdir -p /mnt/install-tmp