Fresh installed HH final ISO alongside Windows 10 secure boot enabled. Proposed must be enabled in Hirsute (9 packages):
sudo apt install shim-signed Reading package lists... Done Building dependency tree... Done Reading state information... Done The following packages will be upgraded: shim-signed 1 upgraded, 0 newly installed, 0 to remove and 8 not upgraded. Need to get 447 kB of archives. After this operation, 1,024 B of additional disk space will be used. Get:1 http://mirrors.edge.kernel.org/ubuntu hirsute-proposed/main amd64 shim-signed amd64 1.47+15.4-0ubuntu2 [447 kB] Fetched 447 kB in 1s (865 kB/s) Preconfiguring packages ... (Reading database ... 159131 files and directories currently installed.) Preparing to unpack .../shim-signed_1.47+15.4-0ubuntu2_amd64.deb ... Unpacking shim-signed (1.47+15.4-0ubuntu2) over (1.46+15.4-0ubuntu1) ... Setting up shim-signed (1.47+15.4-0ubuntu2) ... Trying to migrate /boot/efi into esp config Installing grub to /boot/efi. Installing for x86_64-efi platform. Installation finished. No error reported. mokutil --sb SecureBoot enabled SecureBoot validation is disabled in shim uname -r 5.13.0-051300rc1-generic sda 232.9G ├─sda1 vfat 100M /boot/efi ├─sda2 16M ├─sda3 ntfs 150.1G └─sda4 ext4 82.6G / All good! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1925010 Title: shim-signed 15.4 does not boot on EFI 1.10 systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1925010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs