More checks on minimum RAM for IOS routers and updates default values to match the latest IOS image requirements.

gns3server/modules/virtualbox/__init__.py

@@ -721,7 +721,7 @@ class VirtualBox(IModule):
         """
 
         try:
-            result = subprocess.check_output(command, stderr=subprocess.STDOUT, timeout=30)
+            result = subprocess.check_output(command, stderr=subprocess.STDOUT, timeout=60)
         except (OSError, subprocess.SubprocessError) as e:
             raise VirtualBoxError("Could not execute VBoxManage {}".format(e))
         return result.decode("utf-8", errors="ignore")

gns3server/modules/virtualbox/virtualbox_vm.py

@@ -25,7 +25,6 @@ import re
 import os
 import subprocess
 import tempfile
-import shutil
 import json
 import socket
 import time
@@ -535,7 +534,7 @@ class VirtualBoxVM(object):
                                                                                                  id=self._id,
                                                                                                  adapter_type=adapter_type))
 
-    def _execute(self, subcommand, args, timeout=30):
+    def _execute(self, subcommand, args, timeout=60):
         """
         Executes a command with VBoxManage.