@Christian LP: #1844738 doesn't happen to Bionic, it only happens to customized Bionic server image. Thanks for your help. It has been fixed by new customized image.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1786244 Title: package linux-image-4.15.0-24-generic (not installed) failed to install/upgrade: run-parts: /etc/kernel/postrm.d/x-grub-legacy-ec2 exited with return code 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-legacy-ec2/+bug/1786244/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs