The ubuntu sources list collection.
deb http://mirrors.aliyun.com/ubuntu/ lunar main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ lunar-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ lunar-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ lunar-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ lunar-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ lunar-backports main restricted universe multiversedeb https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-updates main restricted universe multiverse
# deb http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
# deb-src http://mirrors.aliyun.com/ubuntu/ jammy-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ jammy-backports main restricted universe multiversedeb http://old-releases.ubuntu.com/ubuntu/ impish main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ impish main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ impish-security main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ impish-security main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ impish-updates main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ impish-updates main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ impish-proposed main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ impish-proposed main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ impish-backports main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ impish-backports main restricted universe multiversedeb http://old-releases.ubuntu.com/ubuntu/ hirsute main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ hirsute-security main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ hirsute-updates main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ hirsute-proposed main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ hirsute-backports main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ hirsute main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ hirsute-security main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ hirsute-updates main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ hirsute-proposed main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ hirsute-backports main restricted universe multiversesudo apt-get install vim
sudo vim /etc/apt/sources.listdeb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiversesudo apt-get update
sudo apt-get upgrade