I would like to add a few more details on how to reproduce (and how I fixed it eventually). I installed Ubuntu 24.04 alongside to an existing Ubuntu 20.04 installation with UEFI boot enabled, but on the same physical devices (just on a new/different partition). Grub detected the existing 20.04 installation but it appears the UEFI image does not get updated: I could list the available boot options but the boot loader did not appear on machine start-up after running grub-update.
After some time, I decided to back the entire disk up and erase it. It seems erasing the existing UEFI boot partition and followed by a fresh install did the trick: when installing the bcmwl-kernel-source package, I was asked to enter a password for enrolling a new MOK, after reboot I prompted the password and the wl module loads just fine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2073303 Title: Broadcom WLAN kernel module not loaded when secure boot is enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/broadcom-sta/+bug/2073303/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
