Just ran an apt update/upgrade today on my home desktop and had the same issue.
---- The following NEW packages will be installed libapparmor1:i386 The following packages will be upgraded: alsa-ucm-conf grub-common grub-efi-amd64-bin grub-efi-amd64-signed grub-pc grub-pc-bin grub2-common libasound2 libasound2:i386 libasound2-data libasound2-dev libatopology2 libpulse-dev libpulse-mainloop-glib0 libpulse0 libpulse0:i386 libpulsedsp pulseaudio pulseaudio-module-bluetooth pulseaudio-utils yaru-theme-gnome-shell yaru-theme-gtk yaru-theme-icon yaru-theme-sound 24 to upgrade, 1 to newly install, 0 to remove and 0 not to upgrade. ... Preparing to unpack .../15-grub-pc_2.04-1ubuntu26.7_amd64.deb ... Unpacking grub-pc (2.04-1ubuntu26.7) over (2.04-1ubuntu26.6) ... Preparing to unpack .../16-grub2-common_2.04-1ubuntu26.7_amd64.deb ... Unpacking grub2-common (2.04-1ubuntu26.7) over (2.04-1ubuntu26.6) ... Preparing to unpack .../17-grub-pc-bin_2.04-1ubuntu26.7_amd64.deb ... Unpacking grub-pc-bin (2.04-1ubuntu26.7) over (2.04-1ubuntu26.6) ... Preparing to unpack .../18-grub-efi-amd64-signed_1.142.9+2.04-1ubuntu26.7_amd64.deb ... Unpacking grub-efi-amd64-signed (1.142.9+2.04-1ubuntu26.7) over (1.142.8+2.04-1ubuntu26.6) ... Preparing to unpack .../19-grub-efi-amd64-bin_2.04-1ubuntu26.7_amd64.deb ... Unpacking grub-efi-amd64-bin (2.04-1ubuntu26.7) over (2.04-1ubuntu26.6) ... Preparing to unpack .../20-grub-common_2.04-1ubuntu26.7_amd64.deb ... Unpacking grub-common (2.04-1ubuntu26.7) over (2.04-1ubuntu26.6) ... ... grub-install: warning: Internal error. grub-install: error: failed to register the EFI boot entry: Operation not permitted. Processing triggers for systemd (245.4-4ubuntu3.3) ... Processing triggers for man-db (2.9.1-1) ... Processing triggers for dbus (1.12.16-2ubuntu2.1) ... Processing triggers for install-info (6.7.0.dfsg.2-5) ... Processing triggers for libc-bin (2.31-0ubuntu9.1) ... EFI Partition is also pretty big, for what it is. ------ Model: ATA Samsung SSD 840 (scsi) Disk /dev/sda: 250GB Sector size (logical/physical): 512B/512B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 1 1049kB 538MB 537MB fat32 EFI System Partition boot, esp 2 538MB 250GB 250GB ext4 ----- Tried removing and reinstalling. No specific failures noted from running grub-update outside the script. Files got updated root@pinhead:/boot/grub/x86_64-efi# ls -l /boot/efi/EFI/BOOT/ total 4088 -rwx------ 1 root root 1681280 Nov 23 18:58 BOOTX64.EFI -rwx------ 1 root root 1222800 Nov 23 18:21 fbx64.efi -rwx------ 1 root root 1277024 Nov 23 18:21 mmx64.efi root@pinhead:/boot/grub/x86_64-efi# cat /boot/efi/EFI/ubuntu/grub.cfg search.fs_uuid 48221d77-53ec-48c0-ab30-bffb0b0129ec root hd0,gpt2 set prefix=($root)'/boot/grub' configfile $prefix/grub.cfg root@shodan-pin:/boot/grub/x86_64-efi# cat /boot/efi/EFI/ubuntu/BOOTX64.CSV shimx64.efi,ubuntu,,This is the boot entry for ubuntu root@pinhead:/boot/grub/x86_64-efi# ls -l /boot/efi/EFI/ubuntu/ total 4212 -rwx------ 1 root root 108 Nov 23 18:21 BOOTX64.CSV -rwx------ 1 root root 126 Nov 23 18:58 grub.cfg -rwx------ 1 root root 1681280 Nov 23 18:58 grubx64.efi -rwx------ 1 root root 1277024 Nov 23 18:21 mmx64.efi -rwx------ 1 root root 1341560 Nov 23 18:21 shimx64.efi root@pinhead:/boot/grub/x86_64-efi# grub-install --no-uefi-secure-boot Installing for x86_64-efi platform. grub-install: warning: Internal error. grub-install: error: failed to register the EFI boot entry: Operation not permitted. Also reported here: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1901650 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1904263 Title: Writing GRUB to boot device failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1904263/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
