add lsblk command

installer.nix

@@ -15,7 +15,7 @@ imports = [
   services.openssh.settings.PermitRootLogin = "yes";
 
   environment.systemPackages = with pkgs; [
-    git curl jq parted e2fsprogs btrfs-progs util-linux
+    git curl jq parted e2fsprogs btrfs-progs util-linux disko
   ];
 
 #  environment.etc."flake-url".text = "git+https://gitea.lan.ddnsgeek.com/beatzaplenty/nixos.git?ref=main#nixos";   
@@ -88,6 +88,7 @@ fi
     # nixos-install --flake "''${FLAKE_BASE_URL}#''${choice}" --no-root-password --no-write-lock-file
 
 if nix eval --refresh --json  --extra-experimental-features "flakes nix-command" "''${FLAKE_BASE_URL}#nixosConfigurations.''${choice}.config.disko.devices.disk.main.device" >/dev/null 2>&1; then
+    lsblk
     disko --mode destroy,format,mount \
         --flake "''${FLAKE_BASE_URL}#''${choice}"
 else