OK, for ubuntu-19.04-live-server-amd64.iso booting in secure boot mode, I found more commands are not working, at least including: lspci probe md5sum play sha1sum tr usb videoinfo
While the following are working: ls cat echo help reboot I am wondering is this due to some purpose about security? Or? Thank you very much. -- 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
