If you boot a Fedora 39 installer for the Sugar on a Stick spin, the installer doesn’t start when you try to launch it.
PolicyKit needs to be running in order for the installer to start. For some reason, it’s not started automatically, and therefore the installer fails to start.
Bugzilla report: #2239137
After finishing the initial wizard, click on the menu icon in the top right corner, find Terminal in the list, and click on it. Once in the Terminal, run these commands:
/usr/libexec/xfce-polkit & liveinst
The first command starts PolicyKit (which should’ve been started automatically), the second starts the installer. If you do this, the installer should start correctly.
You can discuss this issue here.