Public bug reported: I have windows 10 installation on UEFI mode in other partition. I recently removed Ubuntu 16.04 partition to do a fresh installation of Ubuntu 18.04. But when I install it through bootable USB, I get the error during grub-2 installation process.
"`grub-efi-amd64-signed` package failed to install into / target/" ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubiquity 18.04.14 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CasperVersion: 1.394 Date: Sun Apr 29 09:00:23 2018 InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --- LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) SourcePackage: grub-installer UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub-installer (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic ubiquity-18.04.14 ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767636 Title: error "`grub-efi-amd64-signed` package failed to install into / target/" while installing ubuntu on computer where windows 10 exists in UEFI mode. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1767636/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs