由15.11修改源升级到20，用了一段时间，再更新升级出现404 Not Found无法升级
[sudo] kelin 的密码：
获取:1 https://community-packages.deepin.com/deepin apricot InRelease [19.6 kB]
命中:2 https://community-store-packages.deepin.com/appstore eagle InRelease
忽略:3 https://community-packages.deepin.com/deepin apricot/contrib i386 Packages
忽略:3 https://community-packages.deepin.com/deepin apricot/contrib i386 Packages
忽略:4 https://community-packages.deepin.com/deepin apricot/contrib amd64 Packages
忽略:5 https://community-packages.deepin.com/deepin apricot/non-free i386 Packages
忽略:6 https://community-packages.deepin.com/deepin apricot/non-free amd64 Packages
忽略:7 https://community-packages.deepin.com/deepin apricot/main amd64 Packages
忽略:8 https://community-packages.deepin.com/deepin apricot/main i386 Packages
忽略:4 https://community-packages.deepin.com/deepin apricot/contrib amd64 Packages
忽略:3 https://community-packages.deepin.com/deepin apricot/contrib i386 Packages
忽略:5 https://community-packages.deepin.com/deepin apricot/non-free i386 Packages
忽略:6 https://community-packages.deepin.com/deepin apricot/non-free amd64 Packages
忽略:7 https://community-packages.deepin.com/deepin apricot/main amd64 Packages
忽略:8 https://community-packages.deepin.com/deepin apricot/main i386 Packages
忽略:4 https://community-packages.deepin.com/deepin apricot/contrib amd64 Packages
错误:3 https://community-packages.deepin.com/deepin apricot/contrib i386 Packages
  404  Not Found [IP: 223.111.183.30 443]
忽略:5 https://community-packages.deepin.com/deepin apricot/non-free i386 Packages
忽略:6 https://community-packages.deepin.com/deepin apricot/non-free amd64 Packages
忽略:7 https://community-packages.deepin.com/deepin apricot/main amd64 Packages
忽略:8 https://community-packages.deepin.com/deepin apricot/main i386 Packages
正在读取软件包列表... 完成
E: 无法下载 https://community-packages.deepin.com/deepin/dists/apricot/contrib/binary-i386/by-hash/SHA256/019019119ad81d7d4429fd15d5fca9c58b773351feff9fb89923db360313e14e  404  Not Found [IP: 223.111.183.30 443]
E: 无法下载 https://community-packages.deepin.com/deepin/dists/apricot/contrib/binary-amd64/by-hash/SHA256/25adaaac568f41b59f442a307a93346db1e4aac73a3009cf34c03d62bf26ecdc  404  Not Found [IP: 223.111.183.30 443]
E: 部分索引文件下载失败。如果忽略它们，那将转而使用旧的索引文件。

然后执行了sudo sh -c 'echo "61.54.25.98    community-packages.deepin.com" >> /etc/hosts'还是提示404 Not Found，求助！
获取:1 https://community-packages.deepin.com/deepin apricot InRelease [19.6 kB]
命中:2 https://community-store-packages.deepin.com/appstore eagle InRelease
忽略:3 https://community-packages.deepin.com/deepin apricot/contrib amd64 Packages
忽略:3 https://community-packages.deepin.com/deepin apricot/contrib amd64 Packages
忽略:4 https://community-packages.deepin.com/deepin apricot/main amd64 Packages
忽略:5 https://community-packages.deepin.com/deepin apricot/non-free amd64 Packages
忽略:6 https://community-packages.deepin.com/deepin apricot/non-free i386 Packages
忽略:7 https://community-packages.deepin.com/deepin apricot/contrib i386 Packages
忽略:8 https://community-packages.deepin.com/deepin apricot/main i386 Packages
忽略:4 https://community-packages.deepin.com/deepin apricot/main amd64 Packages
忽略:3 https://community-packages.deepin.com/deepin apricot/contrib amd64 Packages
忽略:5 https://community-packages.deepin.com/deepin apricot/non-free amd64 Packages
忽略:4 https://community-packages.deepin.com/deepin apricot/main amd64 Packages
忽略:6 https://community-packages.deepin.com/deepin apricot/non-free i386 Packages
忽略:7 https://community-packages.deepin.com/deepin apricot/contrib i386 Packages
忽略:8 https://community-packages.deepin.com/deepin apricot/main i386 Packages
错误:3 https://community-packages.deepin.com/deepin apricot/contrib amd64 Packages
  404  Not Found [IP: 61.54.25.98 443]
忽略:5 https://community-packages.deepin.com/deepin apricot/non-free amd64 Packages
正在读取软件包列表... 完成
E: 无法下载 https://community-packages.deepin.com/deepin/dists/apricot/contrib/binary-amd64/by-hash/SHA256/25adaaac568f41b59f442a307a93346db1e4aac73a3009cf34c03d62bf26ecdc  404  Not Found [IP: 61.54.25.98 443]
E: 无法下载 https://community-packages.deepin.com/deepin/dists/apricot/main/binary-amd64/by-hash/SHA256/df93d378400d9ac99ba38e6e877f5fcc006542fbfdcd960327fbdda49ea2cbef  404  Not Found [IP: 61.54.25.98 443]
E: 部分索引文件下载失败。如果忽略它们，那将转而使用旧的索引文件。