官方源推荐外国用户使用

deb http://ports.ubuntu.com/ bionic main restricted universe multiverse

deb-src http://ports.ubuntu.com/ bionic main restricted universe multiverse

deb http://ports.ubuntu.com/ bionic-updates main restricted universe multiverse

deb-src http://ports.ubuntu.com/ bionic-updates main restricted universe multiverse

deb http://ports.ubuntu.com/ bionic-security main restricted universe multiverse

deb-src http://ports.ubuntu.com/ bionic-security main restricted universe multiverse

deb http://ports.ubuntu.com/ bionic-backports main restricted universe multiverse

deb-src http://ports.ubuntu.com/ bionic-backports main restricted universe multiverse

deb http://ports.ubuntu.com/ubuntu-ports/ bionic main universe restricted

deb-src http://ports.ubuntu.com/ubuntu-ports/ bionic main universe restricted

国内用户可使用华为arm源

sudo wget -O /etc/apt/sources.list https://repo.huaweicloud.com/repository/conf/Ubuntu-Ports-bionic.list