sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
sudo vim /etc/apt/sources.list
#换完源后
sudo apt-get update
sudo apt-get upgrade

换源

# 阿里云
deb https://mirrors.aliyun.com/ubuntu/ noble main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ noble-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble-security main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ noble-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble-updates main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ noble-proposed main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble-proposed main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ noble-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble-backports main restricted universe multiverse
# 阿里云软件源
deb https://mirrors.aliyun.com/ubuntu/ noble-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ noble-backports main restricted universe multiverse

清华源
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble-security main restricted universe multiverse

# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ noble-proposed main restricted universe multiverse

中科大
deb https://mirrors.ustc.edu.cn/ubuntu/ noble main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ noble main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ noble-updates main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ noble-updates main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ noble-backports main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ noble-backports main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ noble-security main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ noble-security main restricted universe multiverse
deb https://mirrors.ustc.edu.cn/ubuntu/ noble-proposed main restricted universe multiverse
deb-src https://mirrors.ustc.edu.cn/ubuntu/ noble-proposed main restricted universe multiverse

163
deb http://mirrors.163.com/ubuntu/ noble main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ noble-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ noble-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ noble-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ noble-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ noble main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ noble-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ noble-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ noble-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ noble-backports main restricted universe multiverse