Ubuntu 24.04换源

sudo vim /etc/apt/sources.list.d/ubuntu.sources 

将文件中的内容替换成如下内容(中科大源)：

Types: deb
URIs: https://mirrors.ustc.edu.cn/ubuntu
Suites: noble noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

Types: deb
URIs: https://mirrors.ustc.edu.cn/ubuntu
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

sudo apt-get update

参考资料：Ubuntu - USTC Mirror Help