Fix netbootMinimalSystem: set stateVersion and forceImportRoot

flake.nix

@@ -200,7 +200,11 @@
               (modulesPath + "/installer/netboot/netboot-minimal.nix")
             ];
           })
-          { networking.hostName = "nixos-minimal"; }
+          {
+            networking.hostName = "nixos-minimal";
+            system.stateVersion = "26.05";
+            boot.zfs.forceImportRoot = false;
+          }
         ];
       };