ios 8.0.1 - download completed but unable to install I downloaded iOS 8.0.1, tried couple of times - 'Install Now', it asks me to enter passcode, then it asks me to accept 'Terms and Conditions', once accepted it shows message - 'Verifying update...', after some time it shows message:


  Unable to verify update
  
  iOS 8.0.1 failed verification because you are no longer connected to
  the Internet


Though I am connected to Internet :(

I am trying to upgrade it on iPad mini - retina display.

Any clues?
Apple revoked iOS 8.0.1 last night after issues with iPhone 6 models were revealed.

The installation is failing as the device can't verify the download is correct as iOS 8.0.1 is no longer available.

To delete the download, go to:
Settings app -> General -> Usage -> Manage Storage 

Find the iOS 8.0.1 option, select it and tap delete.

Finally, go back to the Software Update screen and it will show iOS 8.0 as up to date.