报错如下：
代码语言：javascript复制root@VM-8-7-debian:~# apt update
Hit:1 http://mirrors.tencentyun.com/debian bookworm InRelease
Get:2 http://mirrors.tencentyun.com/debian bookworm-updates InRelease [55.4 kB]
Get:3 http://mirrors.tencentyun.com/debian-security bookworm-security InRelease [48.0 kB]
Get:4 http://mirrors.tencentyun.com/debian-security bookworm-security/main amd64 Packages [169 kB]
Get:5 http://mirrors.tencentyun.com/debian-security bookworm-security/main Translation-en [102 kB]
Ign:6 https://download.docker.com/linux/debian bookworm InRelease
Ign:6 https://download.docker.com/linux/debian bookworm InRelease
Ign:6 https://download.docker.com/linux/debian bookworm InRelease
Err:6 https://download.docker.com/linux/debian bookworm InRelease
Cannot initiate the connection to download.docker.com:443 (2a03:2880:f12c:83:face:b00c:0:25de). - connect (101: Network is unreachable) Could not connect to download.docker.com:443 (67.15.129.210), connection timed out
Fetched 374 kB in 37s (10.0 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
82 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: Failed to fetch https://download.docker.com/linux/debian/dists/bookworm/InRelease Cannot initiate the connection to download.docker.com:443 (2a03:2880:f12c:83:face:b00c:0:25de). - connect (101: Network is unreachable) Could not connect to download.docker.com:443 (67.15.129.210), connection timed out
W: Some index files failed to download. They have been ignored, or old ones used instead.修复方法（腾讯云）
- 这里用的是腾讯云的镜像
打开
/etc/apt/sources.list.d/docker.list
原文如下：
代码语言：javascript复制deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian bookworm stable修改为如下内容
代码语言：javascript复制deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg] https://mirrors.cloud.tencent.com/docker-ce/linux/debian bookworm stable修复解释
腾讯的镜像页面docker-ce (tencent.com)，可以看到这是CentOS系统的修改指南：
关键是第二句的这一部分
代码语言：javascript复制sudo sed -i 's download.docker.com mirrors.cloud.tencent.com/docker-ce '后面的路径没有用，因为Debian的和CentOS的不同。
前面这段的意思是把download.docker.com变为mirrors.cloud.tencent.com/docker-ce，所以我们按照这个改就行。
