I had a similar problem, also caused by a copy error. Because of that problem I could not only not upgrade the kernel but couldn't install any software at all.
In my case the problem was caused by a missing udev rule in /etc/udev/rules.d/. I created the rule when trying to run a windows installation on a second hd with Virtual Box. Because that didn't come to work, I deleted the rule again. I don't now why but the system was trying to copy this rule during the process of upgrading the kernel. Since I deleted the file, the process of upgrading failed. I tried to find out, where this rule was still linked so that I could remove the link and the system wouldn't want to copy this rule anymore, but I couldn't find out where that was. But restoring the rule did it for me and the system is upgrading fine again. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/1745428 Title: package linux-firmware 1.157.15 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 Status in initramfs-tools package in Ubuntu: Confirmed Bug description: package linux-firmware 1.157.15 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 ProblemType: Package DistroRelease: Ubuntu 16.04 Package: linux-firmware 1.157.15 ProcVersionSignature: Ubuntu 4.4.0-98.121-generic 4.4.90 Uname: Linux 4.4.0-98-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 Date: Thu Jan 25 16:24:40 2018 Dependencies: ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2016-10-13 (469 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) PackageArchitecture: all RelatedPackageVersions: dpkg 1.18.4ubuntu1.3 apt 1.2.24 SourcePackage: initramfs-tools Title: package linux-firmware 1.157.15 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1745428/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
