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CentOS系统更换yum源 问题 当初瞎鼓捣服务器，更换yum源为aliyun的，奈何阿里的源最近全部打不开，导致yum安装不了，一直报错：http://mirrors.aliyun.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - “The requested URL returned error: 404 Not Found” Trying other mirror. http://mirrors./centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 7 - “couldn’t connect to host” Trying other mirror. http://mirrors.cloud./centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - “Couldn’t resolve host 'mirrors.cloud.’” Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again 在网上查了些资料，总算弄懂应该怎么处理了，但是找不到一个对应的源，所以还原默认了； 1. 查询服务器的系统版本[root@nys yum.repos.d]# rpm -qi centos-release Name : centos-release Relocations: (not relocatable) Version : 6 Vendor: CentOS Release : 10.el6.centos.12.3 Build Date: Tue 26 Jun 2018 10:52:41 PM CST Install Date: Mon 23 Jul 2018 11:48:26 AM CST Build Host: x86-01.bsys. Group : System Environment/Base Source RPM: centos-release-6-10.el6.centos.12.3.src.rpm Size : 38232 License: GPLv2 Signature : RSA/SHA1, Tue 26 Jun 2018 11:35:30 PM CST, Key ID 0946fca2c105b9de Packager : CentOS BuildSystem Summary : CentOS release file Description : CentOS release files 如上:Version,Release两项，当前服务器操作系统的版本就是：6.10 2. 更换yum源 进入yum配置文件目录cd /etc/yum.repos.d [root@nys yum.repos.d]# ll total 60 drwxr-xr-x 2 root root 4096 Oct 17 2017 backup -rw-r--r-- 1 root root 1901 Jan 5 15:35 CentOS-Base.repo #此文件为yum使用的源配置 -rw-r--r-- 1 root root 1991 Jun 26 2018 CentOS-Base.repo.rpmnew -rw-r--r-- 1 root root 647 Jun 26 2018 CentOS-Debuginfo.repo -rw-r--r-- 1 root root 289 Jun 26 2018 CentOS-fasttrack.repo -rw-r--r-- 1 root root 630 Jun 26 2018 CentOS-Media.repo -rw-r--r-- 1 root root 8854 Jun 26 2018 CentOS-Vault.repo -r--r--r-- 1 root root 664 May 11 2018 epel.repo -rw-r--r-- 1 root root 957 Nov 5 2012 epel.repo.rpmnew -rw-r--r-- 1 root root 1056 Nov 5 2012 epel-testing.repo -rw-r--r-- 1 root root 206 Aug 20 17:58 influxdb.repo 确保yum源可访问，此处用的163源 http://mirrors.163.com/centos/6.10/ 可以查看网易的源说明： http://mirrors.163.com/.help/ 下载对应版本的163源： wget http://mirrors.163.com/.help/CentOS6-Base-163.repo 替换源文件到Base： sudo cp CentOS6-Base-163.repo CentOS-Base.repo 更换Base文件中的路径为指定版本号：# CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # # [base] name=CentOS-$releasever - Base - 163.com #此处路径需要替换为真实可访问地址 baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/ #mirrorlist=http://mirrorlist./?release=$releasever&arch=$basearch&repo=os gpgcheck=1 gpgkey=http://mirror./centos/RPM-GPG-KEY-CentOS-6 #released updates [updates] name=CentOS-$releasever - Updates - 163.com baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/ #mirrorlist=http://mirrorlist./?release=$releasever&arch=$basearch&repo=updates gpgcheck=1 gpgkey=http://mirror./centos/RPM-GPG-KEY-CentOS-6 #additional packages that may be useful --More--(51%) * 需要将$releasever替换为当前系统版本号：6.10，对应可访问的163源路径 http://mirrors.163.com/centos/6.10/ 使用vim替换： :%s/$releasever/6.10/g 仅展示部分替换后的文件内容：# CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # # [base] name=CentOS-6.10 - Base - 163.com baseurl=http://mirrors.163.com/centos/6.10/os/$basearch/ #mirrorlist=http://mirrorlist./?release=6.10&arch=$basearch&repo=os gpgcheck=1 gpgkey=http://mirror./centos/RPM-GPG-KEY-CentOS-6 #released updates [updates] name=CentOS-6.10 - Updates - 163.com baseurl=http://mirrors.163.com/centos/6.10/updates/$basearch/ #mirrorlist=http://mirrorlist./?release=6.10&arch=$basearch&repo=updates gpgcheck=1 gpgkey=http://mirror./centos/RPM-GPG-KEY-CentOS-6 --More--(51%) 3. 更新yum#重置缓存 yum makecache 其它可参考执行的命令#检查可以更新的软件包 yum check-update #更新所有的软件包 yum update #更新特定的软件包 yum update kernel #大规模的升级 yum upgrade #清楚缓存中rpm包文件 yum clean packages #清楚缓存中rpm的头文件 yum clean headers #清除缓存中旧的头文件 yum clean old headers #清除缓存中旧的rpm头文件和包文件 yum clean all 如果不成功，还原为默认源配置文件 CentOS-Base.repo 源文件内容，需要将版本6改为7，因为6版本repomd.xml文件已经没有了，只能从7版本开始 http://mirror./centos/7/os/x86_64/repodata/[root@nys yum.repos.d]# cat CentOS-Base.repo # CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # # [base] name=CentOS-7 - Base mirrorlist=http://mirrorlist./?release=7&arch=$basearch&repo=os&infra=$infra #baseurl=http://mirror./centos/7/os/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #released updates [updates] name=CentOS-7 - Updates mirrorlist=http://mirrorlist./?release=7&arch=$basearch&repo=updates&infra=$infra #baseurl=http://mirror./centos/7/updates/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #additional packages that may be useful [extras] name=CentOS-7 - Extras mirrorlist=http://mirrorlist./?release=7&arch=$basearch&repo=extras&infra=$infra #baseurl=http://mirror./centos/7/extras/$basearch/ gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-7 - Plus mirrorlist=http://mirrorlist./?release=7&arch=$basearch&repo=centosplus&infra=$infra #baseurl=http://mirror./centos/7/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 #contrib - packages by Centos Users [contrib] name=CentOS-7 - Contrib mirrorlist=http://mirrorlist./?release=7&arch=$basearch&repo=contrib&infra=$infra #baseurl=http://mirror./centos/7/contrib/$basearch/ gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 更新epel.repo文件内容，将6改为7:[root@nys yum.repos.d]# more epel.repo [epel] name=Extra Packages for Enterprise Linux 7 - $basearch baseurl=http://mirrors.aliyun.com/epel/7/$basearch failovermethod=priority enabled=1 gpgcheck=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 [epel-debuginfo] name=Extra Packages for Enterprise Linux 7 - $basearch - Debug baseurl=http://mirrors.aliyun.com/epel/7/$basearch/debug failovermethod=priority enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 gpgcheck=0 [epel-source] name=Extra Packages for Enterprise Linux 7 - $basearch - Source baseurl=http://mirrors.aliyun.com/epel/7/SRPMS failovermethod=priority enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 gpgcheck=0 清楚缓存并重置yum clean all yum makecache yum -y update |
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