Hello,
4. Disable NetworkManager.
systemctl disable NetworkManager
It doesn't work, I receive message: Failed to issue method call: Invalid argument
10. Running programs as root is generally a bad idea, so we need to set things up so that your regular user account can run qemu. The network bridge and the tap device all need to be up and running before you can run qemu. Add the following to /etc/rc.d/rc.local to configure the tap interface, and bring it up. Make sure you put YOUR USERNAME in where it says <your username>. For example, if your username is fedora, then that line will look like:
username=fedora
#substitute tap0, br0, username to whatever your information is
interface="tap0"
bridge="br0"
username="<your username>"
#add a tap interface owned by your user
tunctl -u $username -t $interface
#add this interface to the bridge
brctl addif $bridge $interface
#bring the interface up
ifconfig $interface up
There is no such file/directory as /etc/rc.d/rc.local
17. If you do not reboot your box, you'll need to bring up everything
systemctl start network.service
Message: Job Failed
How can I resolve those problems?
Greetings,
Daniel