install 20.10 from USB stick failed

[Les Faby]

A grub failure was reported.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: ubiquity 20.10.13
ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
Uname: Linux 5.8.0-25-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu50
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.455
Date: Thu Oct 22 15:23:00 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
RebootRequiredPkgs:
 linux-image-5.8.0-25-generic
 linux-base
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Steve Langasek (vorlon)]

The error in the log is:

Oct 22 20:15:06 ubuntu grub-installer: info: Running chroot /target grub-install --force --target x86_64-efi "/dev/sdb"
Oct 22 20:15:07 ubuntu grub-installer: Installing for x86_64-efi platform.
Oct 22 20:15:18 ubuntu grub-installer: grub-install: warning: Internal error.
Oct 22 20:15:18 ubuntu grub-installer: grub-install: error: failed to register the EFI boot entry: Operation not permitted.
Oct 22 20:15:18 ubuntu grub-installer: error: Running 'grub-install --force --target x86_64-efi "/dev/sdb"' failed.

This indicates that Ubuntu was unable to register itself with your system's firmware, and therefore after reboot the installed system may not boot up correctly.

What sort of system are you installing on? Please attach the output of 'sudo dmidecode' from this system.

[Launchpad Janitor (janitor)]

[Expired for ubiquity (Ubuntu) because there has been no activity for 60 days.]