# ostree.
## install.
```bash
rpm-ostree install https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
```
**reboot**
```bash
rpm-ostree install rpmfusion-free-release rpmfusion-nonfree-release --uninstall rpmfusion-free-release-38-1.noarch --uninstall rpmfusion-nonfree-release-38-1.noarch
```