We deploy 881G routers at our store locations and are planning to upgrade the IOS to 15.2.2. One concern we have is if the router fails to boot to the new image. Is there a way to configure a second boot image as a failover in case the primary boot image does not load? Our current DR plan is to have a laptop on site that we can connect to remotely and setup a console session to manually change the boot file. This can be cumbersome and time consuming, so I'm wondering if the 881 has the ability to have another file loaded if the boot fails.
Thanks.