Maybe you need to edit /etc/dhcpcd.conf? If that's what you are using or equivalent if you are using a different client.
Welcome to Arch's forums.Nothing from /dev/sda was mounted, right? (https://wiki.archlinux.org/index.php/Disk_Cloning#Create_disk_image point 2)What does pv-pbert do?
Welcome to Arch.Are you sure "simple" is right? Maybe compare https://projects.archlinux.org/svntogit … /opensmtpd?