Public bug reported: The installer crashed after complaining that grub could not be installed.
On the system I was trying to upgrade, a user had abused their "sudo for apt-get only" privileges to run sudo apt-get purge upstart, so the computer had no /sbin/init, and would kernel panic on boot. Since this was a 14.04 machine, I decided to use this as an opportunity to upgrade to 16.04. I tried to use the "upgrade from 14.04 to 16.04" button in the installer, and got this error. Normally, I wouldn't expect the installer to work in such exceptional circumstances anyways, but after trying to rerun the installer to perform a clean install, it reached the same step and failed again. The exact message is: The 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader, the installed system will not boot. In the terminal log attached to the installer window, a message something like "INFO: apt-get install grub-[something] failed" is present. After clicking OK in the error window, the installer freezes up, then presents me a window with title "Installer crashed" and the message: We're sorry; the installer crashed. After you close this window, we'll allow you to file a bug report using the integrated bug reporting tool. This will gather information about your system and your installation process. The details will be sent to our bug tracker and a developer will attend to the problem as soon as possible. I'll be rebooting now to see if the installer magically works after a reboot and to verify the integrity of my installation media. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: ubiquity 184.108.40.206 [modified: lib/partman/automatically_partition/question] ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CasperVersion: 1.376 Date: Thu Dec 1 10:34:32 2016 InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --- LiveMediaBuild: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: grub-installer UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub-installer (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug ubiquity-220.127.116.11 ubuntu xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1646576 Title: Upgrading from 14.04 to 16.04 fails when recovering from `apt-get purge upstart` To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1646576/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs