it did not explain why it is ntfs formated though.Boot on your arch instalation media and run :fdisk -l
Are you using netctl ?1.With ethernet cable plugged of course.assuming eth0 is your interface nameIf you are using netctl :sudo ip link set eth0 down
sudo netctl start eth0_connexion_nameif not :sudo ip link set eth0 up
sudo dhcpcd eth02. I don't understand your question. What do you mean by first boot?