pinokio

Both focal and bulleye can startup on cubieboard1 but without network. screen log shows: sun4i-emac 1c0b000.ethernet eth0: could not find the PHY sun4i-emac 1c0b000.ethernet eth0: cannot probe MDIO bus ifconfig show only "lo" and no "eth0" The network on USB-ethernet adapter is working. And I'm sure the onboard eth hardware is OK, because it works on the old system (wheezy and jessie) . Is it a driver issue? Any help is appreciated. Thanks!