Boxes crashes on start if VM uses seclabel selinux
I just switched from Fedora Workstation 32 to Fedora Silverblue 32, which also means I switched from rpm based Boxes to flapak Boxes. I was able to use the info from this issue to get things working, but I noticed something else that was not covered here.
One of my VMs had this line close to the bottom:
<seclabel type='dynamic' model='selinux' relabel='yes'/>
With this in place, Boxes would crash start with the following debug error:
Unable to start domain: unsupported configuration: Security driver model 'selinux' is not available
I'm guessing this is not supported, similar to bridge interfaces.