Public bug reported: In addition to the unhelpful error message, spawning a graphical error message in response to a command-line apt-get dist-upgrade is also unhelpful.
ProblemType: Package DistroRelease: Ubuntu 15.10 Package: shim-signed 1.15~15.10.1+0.8-0ubuntu2 ProcVersionSignature: Ubuntu 4.2.0-39.46-generic 4.2.8-ckt11 Uname: Linux 4.2.0-39-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 BootEFIContents: grub.cfg grub.cfg,v grubx64.efi MokManager.efi shimx64.efi Date: Sat Jun 25 17:20:20 2016 DuplicateSignature: package:shim-signed:1.15~15.10.1+0.8-0ubuntu2:subprocess installed post-installation script returned error exit status 1 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2016-03-10 (107 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) RelatedPackageVersions: dpkg 1.18.2ubuntu5.1 apt 1.0.10.2ubuntu3 SourcePackage: shim-signed Title: package shim-signed 1.15~15.10.1+0.8-0ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: Upgraded to wily on 2016-04-25 (61 days ago) ** Affects: shim-signed (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package package-from-proposed wily -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1596230 Title: installer produces unhelpful error message when /boot/efi is mounted read-only To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1596230/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs