Debian 8 以下系统修改 apt 源 404 问题 Backports

[linlance]

网上搜了搜，说是 Debian 官方删掉了 8 以下的文件； 求修改方法。。。

Err http://mirrors.163.com jessie-backports/main Sources
  404  Not Found
Err http://mirrors.163.com jessie-backports/non-free Sources
  404  Not Found
Err http://mirrors.163.com jessie-backports/contrib Sources
  404  Not Found
Err http://mirrors.163.com jessie-backports/main amd64 Packages
  404  Not Found
Err http://mirrors.163.com jessie-backports/non-free amd64 Packages
  404  Not Found
Err http://mirrors.163.com jessie-backports/contrib amd64 Packages
  404  Not Found
Ign http://mirrors.163.com jessie-backports/contrib Translation-en
Ign http://mirrors.163.com jessie-backports/main Translation-en
Ign http://mirrors.163.com jessie-backports/non-free Translation-en
Fetched 20.4 MB in 13s (1537 kB/s)
W: There is no public key available for the following key IDs:
AA8E81B4331F7F50
W: Failed to fetch http://mirrors.163.com/debian/dists/jessie-backports/main/source/Sources  404  Not Found

W: Failed to fetch http://mirrors.163.com/debian/dists/jessie-backports/non-free/source/Sources  404  Not Found

W: Failed to fetch http://mirrors.163.com/debian/dists/jessie-backports/contrib/source/Sources  404  Not Found

W: Failed to fetch http://mirrors.163.com/debian/dists/jessie-backports/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://mirrors.163.com/debian/dists/jessie-backports/non-free/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://mirrors.163.com/debian/dists/jessie-backports/contrib/binary-amd64/Packages  404  Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.

[ChristianChen]

之前尝试按照 stackoverflow 上的一些方法尝试去解决，奈何技术不行，最后还是用直接升级到 9 最简单

[xialer]

话说 2000 哥为啥还在用 8 2013 年的老古董了

[lcdtyph]

你可能得切换到 archive 镜像了，还要把日期检查关掉，把这行放在 apt 源里，把其他的 backports 源删掉
```
deb [check-valid-until=no] http://archive.debian.org/debian jessie-backports main
```

[msg7086]

https://mirrors.xtom.com.hk/debian-archive/ ？

[cherbim]

升级系统

[linlance]

@xialer 2013 年的？-_-||，感觉这个系统很稳定，一直用。那看来是时候考虑 Debian9 了。。。谢谢提醒。。

[chinesestudio]

10 都出来了 完全可以用

[flynaj]

建议直接上 10，8 去年已经结束支持了。Debian 的升级策略本来就很保守，完全可以用最新版本。

[hanru]

Debian 8 现在是长期维护支持（ LTS ），LTS 是不包括 Backports 的，所有 Backports 软件包出现的问题（包括安全问题）均不会修复。

你可以参照 3 楼修改 Backports 的源到 Archive，但我个人是不建议这么做的。如果确实需要 Backports 里的新版软件包，则应该升级到 Debian 9 或最新的 10。