Fedora Silverblue is one of the immutable operating systems. Somewhere the OS is being built, resulting in an ostree commit that gets distributed to the machines running Silverblue. On the machines this results in a new deployment which will become active on the next boot, while the previous deployment is still around, ready to be booted into if anything goes wrong. The deployments are read-only. The resulting stabilility and fault-tolerance is, compared with the traditional single directory ...
