@thephatlee that worked, thanks!
In summary, this is what I had to do to fix my issue.
- Install sbctl - they have a repo for it, but I manually compiled it since it does not work in toolbox and I didn’t want to install it on my host (Fedora Silverblue). Thankfully it was very easy. In toolbox, I ran these commands to compile it.
sudo dnf install golang asciidoc
mkdir build && cd build
git clone https://github.com/foxboron/sbctl.git
cd sbctl
make
From here, I left the toolbox and could run ./sbctl to run the program.
- Run
sudo ./sbctl enroll-keys --microsoft - Reboot