root@Bser8608377298916:~# apt-get update
Ign:1 http://security.debian.org bullseye/updates InRelease
Err:2 http://security.debian.org bullseye/updates Release
404 Not Found [IP: 151.101.26.132 80]
Get:3 http://deb.debian.org/debian bullseye InRelease [116 kB]
Get:4 http://deb.debian.org/debian bullseye-updates InRelease [44.1 kB]
Get:5 http://deb.debian.org/debian bullseye-backports InRelease [49.0 kB]
Get:6 http://deb.debian.org/debian bullseye/main Sources [8634 kB]
Get:7 http://deb.debian.org/debian bullseye/main amd64 Packages [8183 kB]
Get:8 http://deb.debian.org/debian bullseye/main Translation-en [6240 kB]
Get:9 http://deb.debian.org/debian bullseye-updates/main Sources [4812 B]
Get:10 http://deb.debian.org/debian bullseye-updates/main amd64 Packages [14.6 kB]
Get:11 http://deb.debian.org/debian bullseye-updates/main Translation-en [7929 B]
Get:12 http://deb.debian.org/debian bullseye-backports/main Sources [420 kB]
Get:13 http://deb.debian.org/debian bullseye-backports/main amd64 Packages [416 kB]
Get:14 http://deb.debian.org/debian bullseye-backports/main Translation-en [348 kB]
Reading package lists... Done
E: The repository 'http://security.debian.org bullseye/updates Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.先备份一下原版的sources.list文件
mv /etc/apt/sources.list /etc/apt/sources.list.old然后替换一下官方源
cat > /etc/apt/sources.list << EOF
deb http://deb.debian.org/debian/ bullseye main contrib non-free
deb-src http://deb.debian.org/debian/ bullseye main contrib non-free
deb http://deb.debian.org/debian/ bullseye-updates main contrib non-free
deb-src http://deb.debian.org/debian/ bullseye-updates main contrib non-free
deb http://deb.debian.org/debian/ bullseye-backports main contrib non-free
deb-src http://deb.debian.org/debian/ bullseye-backports main contrib non-free
deb http://deb.debian.org/debian-security/ bullseye-security main contrib non-free
deb-src http://deb.debian.org/debian-security/ bullseye-security main contrib non-free
EOF国内可换成阿里的源
cat > /etc/apt/sources.list << EOF
deb http://mirrors.cloud.aliyuncs.com/debian/ bullseye main contrib non-free
deb-src http://mirrors.cloud.aliyuncs.com/debian/ bullseye main contrib non-free
deb http://mirrors.cloud.aliyuncs.com/debian/ bullseye-updates main contrib non-free
deb-src http://mirrors.cloud.aliyuncs.com/debian/ bullseye-updates main contrib non-free
deb http://mirrors.cloud.aliyuncs.com/debian/ bullseye-backports main contrib non-free
deb-src http://mirrors.cloud.aliyuncs.com/debian/ bullseye-backports main contrib non-free
deb http://mirrors.cloud.aliyuncs.com/debian/ bullseye-proposed-updates main contrib non-free
deb-src http://mirrors.cloud.aliyuncs.com/debian/ bullseye-proposed-updates main contrib non-free
deb http://mirrors.cloud.aliyuncs.com/debian-security/ bullseye-security main contrib non-free
deb-src http://mirrors.cloud.aliyuncs.com/debian-security/ bullseye-security main contrib non-free
EOF最后apt-get update 一下，完成修复
