更新至Fedora 23 workstation?求指令

# dnf system-upgrade download --releasever=23

Example Usage
To download everything needed to upgrade to Fedora 23:
# dnf system-upgrade download --releasever=23
Once that finishes, you can begin the upgrade process:
# dnf system-upgrade reboot
There's also a fedup-compatible wrapper script, so this works too:

# fedup --network 23#
fedup reboot