After using "Christian Merges (christianmerges)" recommendation and the error gone: My Server is not using efi boot i resolved this by this command: apt remove shim-signed grub-efi-amd64-bin --allow-remove-essential
https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1971059 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1972154 Title: package grub-efi-amd64-signed 1.180(2.06-2ubuntu7 failed to install/upgrade: Installed grub-efi-amd64-signed package post- Installation script subprocess returned error exit status 32 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1972154/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
