每次安装Linux后我都会惯例进行apt-get update和upgrade，属于强迫症

这次安装Debian12后发现报错：

The repository 'cdrom://[Debian GNU/Linux 12.1.0 _Bookworm_ - Official arm64 DVD Binary-1 with firmware 20230722-10:50] bookworm Release' does not have a Release file.

Ign:1 cdrom://[Debian GNU/Linux 12.1.0 _Bookworm_ - Official arm64 DVD Binary-1 with firmware 20230722-10:50] bookworm InRelease
Err:2 cdrom://[Debian GNU/Linux 12.1.0 _Bookworm_ - Official arm64 DVD Binary-1 with firmware 20230722-10:50] bookworm Release
  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Reading package lists... Done
E: The repository 'cdrom://[Debian GNU/Linux 12.1.0 _Bookworm_ - Official arm64 DVD Binary-1 with firmware 20230722-10:50] bookworm 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.

1、查看软件源

发现默认软件源只有本地cdrom

2、更换软件源

首先将/etc/apt/sources.list里面的内容注释掉，随后将任意软件源复制进去保存即可：

官方源

deb http://deb.debian.org/debian bookworm non-free non-free-firmware
deb-src http://deb.debian.org/debian bookworm non-free non-free-firmware

deb http://deb.debian.org/debian-security bookworm-security non-free non-free-firmware
deb-src http://deb.debian.org/debian-security bookworm-security non-free non-free-firmware

deb http://deb.debian.org/debian bookworm-updates non-free non-free-firmware
deb-src http://deb.debian.org/debian bookworm-updates non-free non-free-firmware

阿里云镜像站

deb https://mirrors.aliyun.com/debian/ bookworm main non-free non-free-firmware contrib

deb-src https://mirrors.aliyun.com/debian/ bookworm main non-free non-free-firmware contrib

deb https://mirrors.aliyun.com/debian-security/ bookworm-security main

deb-src https://mirrors.aliyun.com/debian-security/ bookworm-security main

deb https://mirrors.aliyun.com/debian/ bookworm-updates main non-free non-free-firmware contrib

deb-src https://mirrors.aliyun.com/debian/ bookworm-updates main non-free non-free-firmware contrib

deb https://mirrors.aliyun.com/debian/ bookworm-backports main non-free non-free-firmware contrib

deb-src https://mirrors.aliyun.com/debian/ bookworm-backports main non-free non-free-firmware contrib

腾讯云镜像站

deb https://mirrors.tencent.com/debian/ bookworm main non-free non-free-firmware contrib

deb-src https://mirrors.tencent.com/debian/ bookworm main non-free non-free-firmware contrib

deb https://mirrors.tencent.com/debian-security/ bookworm-security main

deb-src https://mirrors.tencent.com/debian-security/ bookworm-security main

deb https://mirrors.tencent.com/debian/ bookworm-updates main non-free non-free-firmware contrib

deb-src https://mirrors.tencent.com/debian/ bookworm-updates main non-free non-free-firmware contrib

deb https://mirrors.tencent.com/debian/ bookworm-backports main non-free non-free-firmware contrib

deb-src https://mirrors.tencent.com/debian/ bookworm-backports main non-free non-free-firmware contrib

网易镜像站

deb https://mirrors.163.com/debian/ bookworm main non-free non-free-firmware contrib

deb-src https://mirrors.163.com/debian/ bookworm main non-free non-free-firmware contrib

deb https://mirrors.163.com/debian-security/ bookworm-security main

deb-src https://mirrors.163.com/debian-security/ bookworm-security main

deb https://mirrors.163.com/debian/ bookworm-updates main non-free non-free-firmware contrib

deb-src https://mirrors.163.com/debian/ bookworm-updates main non-free non-free-firmware contrib

deb https://mirrors.163.com/debian/ bookworm-backports main non-free non-free-firmware contrib

deb-src https://mirrors.163.com/debian/ bookworm-backports main non-free non-free-firmware contrib

华为镜像站

deb https://mirrors.huaweicloud.com/debian/ bookworm main non-free non-free-firmware contrib

deb-src https://mirrors.huaweicloud.com/debian/ bookworm main non-free non-free-firmware contrib

deb https://mirrors.huaweicloud.com/debian-security/ bookworm-security main

deb-src https://mirrors.huaweicloud.com/debian-security/ bookworm-security main

deb https://mirrors.huaweicloud.com/debian/ bookworm-updates main non-free non-free-firmware contrib

deb-src https://mirrors.huaweicloud.com/debian/ bookworm-updates main non-free non-free-firmware contrib

deb https://mirrors.huaweicloud.com/debian/ bookworm-backports main non-free non-free-firmware contrib

deb-src https://mirrors.huaweicloud.com/debian/ bookworm-backports main non-free non-free-firmware contrib

清华大学镜像站

deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free non-free-firmware

deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free non-free-firmware

deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware

deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware

deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware

deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware

deb https://mirrors.tuna.tsinghua.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware

deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware

中科大镜像站

deb https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware

deb-src https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware

deb https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware

deb-src https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware

deb https://mirrors.ustc.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware

deb-src https://mirrors.ustc.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware

deb https://mirrors.ustc.edu.cn/debian-security/ bookworm-security main contrib non-free non-free-firmware

deb-src https://mirrors.ustc.edu.cn/debian-security/ bookworm-security main contrib non-free non-free-firmware

3、验证测试

我这里使用的是阿里云的软件源
验证成功，可以愉快玩耍啦~

4、链接

Debian12官方下载链接：https://www.debian.org/releases/stable/debian-installer

Debian全球镜像站列表：https://www.debian.org/mirror/list