怎么做网站封面上的图,免费企业网站建设哪家,品牌设计需要做些什么,网站开发后是不是下挂到域名文章目录 Ubuntu查看系统版本Ubuntu更新系统不能更新Ubuntu查看APT更新源配置cn.archive.ubuntu.com已经自动跳转到清华镜像站Ubuntu变更镜像源地址备份原文件批量在VIM中变更 Ubuntu国内镜像站推荐推荐阅读 今天想要在Ubuntu环境下搭建一个测试环境#xff0c;进入Ubuntu系统… 文章目录 Ubuntu查看系统版本Ubuntu更新系统不能更新Ubuntu查看APT更新源配置cn.archive.ubuntu.com已经自动跳转到清华镜像站Ubuntu变更镜像源地址备份原文件批量在VIM中变更 Ubuntu国内镜像站推荐推荐阅读 今天想要在Ubuntu环境下搭建一个测试环境进入Ubuntu系统后先看了下系统版本 Ubuntu查看系统版本
lsb_release -aUbuntu更新系统不能更新
sudo apt-get update 在执行后发现报错如下发现一个很奇怪的现象我明明记得源配置的是cn.archive.ubuntu.com,但是发现系统更新时自动去找了清华大学的Ubuntu源。why难道是我源配置的是清华的吗
Err:5 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu bionic InRelease 503 Service Unavailable [IP: 185.125.190.52 80]
Err:1 http://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic InRelease 503 Service Unavailable [IP: 101.6.15.130 80]
Err:2 http://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-updates InRelease503 Service Unavailable [IP: 101.6.15.130 80]
Err:3 http://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-backports InRelease503 Service Unavailable [IP: 101.6.15.130 80]
Err:4 http://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-security InRelease503 Service Unavailable [IP: 101.6.15.130 80]
Reading package lists... DoneUbuntu查看APT更新源配置
sudo vim /etc/apt/sources.list通过VIM编辑器查看源地址没错为什么更新的时候去找了清华源呢 See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://cn.archive.ubuntu.com/ubuntu bionic main restricted
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic main restricted## Major bug fix updates produced after the final release of the
## distribution.
deb http://cn.archive.ubuntu.com/ubuntu bionic-updates main restricted
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic-updates main restricted## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://cn.archive.ubuntu.com/ubuntu bionic universe
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic universe
deb http://cn.archive.ubuntu.com/ubuntu bionic-updates universe
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic-updates universe## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://cn.archive.ubuntu.com/ubuntu bionic multiverse
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic multiverse
deb http://cn.archive.ubuntu.com/ubuntu bionic-updates multiverse
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic-updates multiverse## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://cn.archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse## Uncomment the following two lines to add software from Canonicals
## partner repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu bionic partner
# deb-src http://archive.canonical.com/ubuntu bionic partnerdeb http://cn.archive.ubuntu.com/ubuntu bionic-security main restricted
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic-security main restricted
deb http://cn.archive.ubuntu.com/ubuntu bionic-security universe
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic-security universe
deb http://cn.archive.ubuntu.com/ubuntu bionic-security multiverse
# deb-src http://cn.archive.ubuntu.com/ubuntu bionic-security multiversecn.archive.ubuntu.com已经自动跳转到清华镜像站
带着很多问号在浏览器打开http://cn.archive.ubuntu.com发现网站已经自动跳转到清华镜像站了。 以为网站需要https打开发现该网站无法打开。 有知道原因的小伙伴吗希望大家不吝分享。
Ubuntu变更镜像源地址
虽然访问http://cn.archiv.ubuntu.com会自动跳转到清华源但是我们还是做一个镜像源地址变更。 使用如下命令将镜像文件中的cn.archive.ubuntu.com批量更换为清华源。
备份原文件
变更前记得备份原始的/ etc / apt / sources.list文件
$sudo cp / etc / apt / sources.list / etc / apt / sources.list.bak批量在VIM中变更
在vim编辑器批量变更字符串方法如下按下esc后输入
:%s/cn\.archive\.ubuntu\.com/mirrors\.tuna\.tsinghua\.edu\.cn/g第一次替换时少打了一个“.”报错提示E486: Pattern not found。这个报错时指没有找到特定的字符重新检查错误后发现.在正则表达式中通常是特殊字符所以需要使用\ 来转义它以确保准确匹配点号。所以www.csdn.net 转换后应该时www.csdn.net。这也算是一个语法上的注意事项。
Ubuntu国内镜像站推荐
除了官方的cn.archive.ubuntu.com外国内还有多个Ubuntu的稳定镜像站 清华大学开源软件镜像站 https://mirrors.tuna.tsinghua.edu.cn/ubuntu/阿里巴巴开源镜像站 https://mirrors.aliyun.com/ubuntu/Ubuntu官方镜像站
http://archive.ubuntu.com/ubuntu/当然还有一些其他的以上三个是我个人觉得比较好用的。上文希望对大家有所帮助。
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