先科普一下源格式

deb http://mirrors.aliyun.com/ubuntu-ports/ xenial main

源类型 地址 系统版本 包范围

src源 没看源码需求可以注释以加快速度 一般换源直接更换地址即可 系统版本要和自己系统相对应

将/etc/apt/sources.list更换为

deb http://mirrors.aliyun.com/ubuntu-ports/ jammy main restricted universe multiverse
#deb-src http://ports.ubuntu.com/ jammy main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu-ports/ jammy-security main restricted universe multiverse
#deb-src http://ports.ubuntu.com/ jammy-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu-ports/ jammy-updates main restricted universe multiverse
#deb-src http://ports.ubuntu.com/ jammy-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu-ports/ jammy-backports main restricted universe multiverse
#deb-src http://ports.ubuntu.com/ jammy-backports main restricted universe multiverse