Maybe: https://superuser.com/questions/1359322/grub-efi-amd64-signed-wont-install-to-usb-drive
"This problem happens when manually creating the disk partitions during a UEFI enabled installation. The point is that a UEFI installation requires the prior creation of a UEFI partition. The error is generated when the installer cannot find a suitable partition on the installation disk. See for details the article Creating an EFI System Partition <https://help.ubuntu.com/community/UEFI#Creating_an_EFI_System_Partition>, but in short the size of the partition is recommended as 200 MB, of type FAT32, and flagged as "boot". The partition editor of the installer may take care of all the details (except the size) if it supports a partition type of "UEFI"." Tauno Kontakt SM Randall-Friday (<1252...@bugs.launchpad.net>) kirjutas kuupäeval L, 4. aprill 2020 kell 18:10: > This makes 8 attempts. As suggested, changed the boot mode to legacy. > The only difference was another error message shortly after choosing > Legacy Boot ... > > "Ubuntu has been blocked by current security policy" > > Clicked ok and my pc continue on to the same installation process, until > it tried to install the grub, and received the same error message ... > > "The 'grub-efi-amd64-signed' package failed to install into /target/. > Without the GRUB boot loader, the installed system will not boot" > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1252255 > > Title: > The 'grub-efi-amd64-signed' package failed to install into /target/. > Without the GRUB boot loader, the installed system will not boot. > > Status in grub-installer package in Ubuntu: > Invalid > > Bug description: > The 'grub-efi-amd64-signed' package failed to install into /target/. > Without the GRUB boot loader, the installed system will not boot. > > ProblemType: Bug > DistroRelease: Ubuntu 12.04 > Package: ubiquity 2.10.26 [modified: > lib/partman/automatically_partition/question] > ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5 > Uname: Linux 3.8.0-29-generic x86_64 > ApportVersion: 2.0.1-0ubuntu17.4 > Architecture: amd64 > CasperVersion: 1.315.1 > Date: Mon Nov 18 23:35:57 2013 > InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi > file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash -- > LiveMediaBuild: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 > (20130820.1) > MarkForUpload: True > ProcEnviron: > LANGUAGE=en_AU.UTF-8 > TERM=unknown > PATH=(custom, no user) > LANG=en_AU.UTF-8 > SHELL=/bin/bash > SourcePackage: grub-installer > UpgradeStatus: No upgrade log present (probably fresh install) > > To manage notifications about this bug go to: > > https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1252255/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1252255 Title: The 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader, the installed system will not boot. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1252255/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
