This sort of inconsistency shouldn't happen on mirrors which use the recommended 2-stage sync: https://wiki.ubuntu.com/Mirrors/Scripts Currently cn.archive.ubuntu.com is redirected to us.archive.ubuntu.com, so if the latter works for you, the former should also. I've just confirmed that I can deploy bionic cloud images and run apt updates on them, so my guess is that you're dealing with a local DNS override or troublesome transparent proxy.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1755070 Title: [18.04] apt update failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1755070/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
