关于ubuntu18.04 ARM架构更换源失败的问题

更换源后报错:

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E: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/ubuntu/dists/trusty-security/main/binary-arm64/Packages  404  Not Found [IP: 2402:f000:1:400::2 80]
E: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/ubuntu/dists/trusty-updates/main/binary-arm64/Packages  404  Not Found [IP: 2402:f000:1:400::2 80]
E: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/ubuntu/dists/trusty-backports/main/binary-arm64/Packages  404  Not Found [IP: 2402:f000:1:400::2 80]
E: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/ubuntu/dists/trusty-proposed/main/binary-arm64/Packages  404  Not Found [IP: 2402:f000:1:400::2 80]
E: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/ubuntu/dists/trusty/main/binary-arm64/Packages  404  Not Found [IP: 2402:f000:1:400::2 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.

原因:cpu是arm架构,基本都是x86的源的配置,用错源自然找不到所需的包裹信息,报404错误。

更改为:

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# 默认注释了源码镜像以提高 apt update 速度,如有需要可自行取消注释
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-security main restricted universe multiverse
 
# 预发布软件源,不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ bionic-proposed main restricted universe multiverse
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