Hi, Try use the newest version.
Secure Boot forbids loading any external modules thus command "regexp" on Ubuntu 19.04 does not work in the secure boot mode, but it works in the non-secure boot mode. regexp is in grub efi image (debian/build-efi-images). https://git.launchpad.net/ubuntu/+source/grub2/commit/?id=2235a503200aff73febb23484f2ec25e268f3d2e -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1829331 Title: Grub regexp command does not work in secure boot mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-efi-amd64-signed/+bug/1829331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
