The solution seems to be re-issue the apt dist-upgrade command again. And this time the upgrade process will ended successfully with a Warning:
$ sudo apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages were automatically installed and are no longer required: linux-headers-4.15.0-15 linux-headers-4.15.0-15-generic linux-image-4.15.0-15-generic linux-image-extra-4.15.0-15-generic Use 'sudo apt autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] Setting up initramfs-tools (0.130ubuntu3) ... update-initramfs: deferring update (trigger activated) Processing triggers for initramfs-tools (0.130ubuntu3) ... update-initramfs: Generating /boot/initrd.img-4.15.0-19-generic Using config file '/etc/zipl.conf' Building bootmap in '/boot' Building menu 'menu' Adding #1: IPL section 'ubuntu' (default) Adding #2: IPL section 'old' Preparing boot device: vda (0000). Done. W: APT had planned for dpkg to do more than it reported back (0 vs 4). Affected packages: initramfs-tools:s390x $ echo $? 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766176 Title: initramfs-tools returns error while installing the proposed Bionic kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1766176/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
