Ubuntu 18.04国内源apt-get update报404的一种可能错误_乌班图18.04更新提示网址错误-优快云博客

当使用Ubuntu 18.04的ARM架构系统时，使用常规x86源进行`apt-get update`会出现404错误。原因是源不匹配。解决方法是将URL中的'ubuntu'替换为'ubuntu-ports'，如改为阿里源或清华源的ubuntu-ports，然后重新更新。这可以解决因架构不符导致的软件包找不到问题。

问题：如下，apt-get update下不下来。

$ sudo apt-get update
Ign:1 http://mirrors.tuna.tsinghua.edu.cn/ros/ubuntu bionic InRelease
Hit:2 http://mirrors.tuna.tsinghua.edu.cn/ros/ubuntu bionic Release
Get:3 http://mirrors.aliyun.com/ubuntu bionic InRelease [242 kB]
Get:4 http://mirrors.aliyun.com/ubuntu bionic-security InRelease [88.7 kB]
Get:5 http://mirrors.aliyun.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:7 http://mirrors.aliyun.com/ubuntu bionic-proposed InRelease [242 kB]
Get:8 http://mirrors.aliyun.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:10 http://mirrors.aliyun.com/ubuntu bionic/main Sources [829 kB]
Get:12 http://mirrors.aliyun.com/ubuntu bionic/restricted Sources [5,324 B]
Get:13 http://mirrors.aliyun.com/ubuntu bionic/universe Sources [9,051 kB]
Get:14 http://mirrors.aliyun.com/ubuntu bionic/multiverse Sources [181 kB]
Ign:15 http://mirrors.aliyun.com/ubuntu bionic/main arm64 Packages
Get:16 http://mirrors.aliyun.com/ubuntu bionic/main Translation-en [516 kB]
Get:17 http://mirrors.aliyun.com/ubuntu bionic/main arm64 DEP-11 Metadata [472 kB]
Get:18 http://mirrors.aliyun.com/ubuntu bionic/main DEP-11 48x48 Icons [118 kB]
Get:19 http://mirrors.aliyun.com/ubuntu bionic/main DEP-11 64x64 Icons [245 kB]
Ign:20 http://mirrors.aliyun.com/ubuntu bionic/restricted arm64 Packages
Get:21 http://mirrors.aliyun.com/ubuntu bionic/restricted Translation-en [3,584 B]
Ign:22 http://mirrors.aliyun.com/ubuntu bionic/universe arm64 Packages
Get:23 http://mirrors.aliyun.com/ubuntu bionic/universe Translation-en [4,941 kB]
Get:24 http://mirrors.aliyun.com/ubuntu bionic/universe arm64 DEP-11 Metadata [3,243 kB]
Hit:9 https://international.download.nvidia.cn/jetson/repos/common r32 InRelease
Hit:11 https://international.download.nvidia.cn/jetson/repos/t210 r32 InRelease
Get:25 http://mirrors.aliyun.com/ubuntu bionic/universe DEP-11 48x48 Icons [2,151 kB]
Get:26 http://mirrors.aliyun.com/ubuntu bionic/universe DEP-11 64x64 Icons [8,420 kB]
Ign:27 http://mirrors.aliyun.com/ubuntu bionic/multiverse arm64 Packages
Get:28 http://mirrors.aliyun.com/ubuntu bionic/multiverse Translation-en [108 kB]
Get:29 http://mirrors.aliyun.com/ubuntu bionic/multiverse arm64 DEP-11 Metadata [44.4 kB]
Get:30 http://mirrors.aliyun.com/ubuntu bionic/multiverse DEP-11 48x48 Icons [8,931 B]
Get:31 http://mirrors.aliyun.com/ubuntu bionic/multiverse DEP-11 64x64 Icons [225 kB]
Get:32 http://mirrors.aliyun.com/ubuntu bionic-security/universe Sources [294 kB]
Get:33 http://mirrors.aliyun.com/ubuntu bionic-security/restricted Sources [22.7 kB]
Get:34 http://mirrors.aliyun.com/ubuntu bionic-security/main Sources [263 kB]
Get:35 http://mirrors.aliyun.com/ubuntu bionic-security/multiverse Sources [7,972 B]
Ign:36 http://mirrors.aliyun.com/ubuntu bionic-security/main arm64 Packages
Get:37 http://mirrors.aliyun.com/ubuntu bionic-security/main Translation-en [373 kB]
Get:38 http://mirrors.aliyun.com/ubuntu bionic-security/main arm64 DEP-11 Metadata [49.1 kB]
Get:39 http://mirrors.aliyun.com/ubuntu bionic-security/main DEP-11 48x