Hi Frank, (In reply to Frank Kr���ger from comment #4) > Given TW20211102 with secure boot enabled, 'sudo fwupdmgr install > <filename>' results in an error message: "missing signed bootloader for > secure boot: /usr/libexec/fwupd/efi/fwupdx64.efi.signed cannot be found". > > First of all, I had to install fwupd-efi-1.1-1.1.x86_64 manually. Second, > this package only provides fwupdx64.efi rather than fwupdx64.efi.signed in > /usr/libexec/fwupd/efi/. As a workaround a symbolic link solves the issue. Could you please provide the detail of your machine model and reproducing steps? I want to reference your environment to build up my development/test environment. Thanks a lot!