I have tried to format my flash to install new IOS by using this command myrouter#format flash: thenI don,t know what is happen when I restart my router the out put is as the following €€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€...