Comment by mehrdadn

Does anybody know why this happens when I try to do-release-upgrade 18.04 in WSL? I didn't have trouble going from 16.04 to 18.04...

  $ do-release-upgrade
  Checking for a new Ubuntu release
  Get:1 Upgrade tool signature [819 B]
  Get:2 Upgrade tool [1,243 kB]
  Fetched 1,244 kB in 0s (0 B/s)
  authenticate 'cosmic.tar.gz' against 'cosmic.tar.gz.gpg'
  extracting 'cosmic.tar.gz'
  [sudo] password for $USER:
  $