What is the region (looks like eu-west-1 based on apt output, but want to confirm) and AMI you are using? Do you have other Trusty instances where you've performed the update and this has not happened?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1701751 Title: During routine apt-get update/upgrade: sudo: unknown uid 4000: who are you? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1701751/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs