1、問題
[root@localhost home]# yum install httpd Loaded plugins: langpacks, product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. One of the configured repositories failed (Unknown), and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream. This is most often useful if you are using a newer distribution release than is supported by the repository (and the packages for the previous distribution release still work). 3. Disable the repository, so yum won't use it by default. Yum will then
just ignore the repository until you permanently enable it again or use --enablerepo for temporary usage: yum-config-manager --disable <repoid>
4. Configure the failing repository to be skipped, if it is unavailable. Note that yum will try to contact the repo. when it runs most commands, so will have to try and fail each time (and thus. yum will be be much slower). If it is a very temporary problem though, this is often a nice compromise: yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true Cannot retrieve metalink for repository: epel/x86_64. Please verify its path and try again
2、解決方法，去掉baseurl前面的注釋，將metalink注釋掉
[root@localhost home]# cd /etc/yum.repos.d/ [root@localhost yum.repos.d]# ls epel.repo epel-testing.repo packagekit-media.repo rhel7.repo [root@localhost yum.repos.d]# vim epel.repo [epel] name=Extra Packages for Enterprise Linux 7 - $basearch baseurl=http://download.fedoraproject.org/pub/epel/7/$basearch #metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch&infra=$infra&content=$contentdir
failovermethod=priority enabled=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
[epel-debuginfo] name=Extra Packages for Enterprise Linux 7 - $basearch - Debug baseurl=http://download.fedoraproject.org/pub/epel/7/$basearch/debug #metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-7&arch=$basearch&infra=$infra&content=$contentdir
failovermethod=priority enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1 [epel-source] name=Extra Packages for Enterprise Linux 7 - $basearch - Source baseurl=http://download.fedoraproject.org/pub/epel/7/SRPMS #metalink=https://mirrors.fedoraproject.org/metalink?repo=epel-source-7&arch=$basearch&infra=$infra&content=$contentdir
failovermethod=priority enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1
3、測試
[root@localhost yum.repos.d]# yum install httpd Loaded plugins: langpacks, product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. epel | 4.7 kB 00:00:00 rhel7 | 4.1 kB 00:00:00 (1/3): epel/x86_64/group_gz | 95 kB 00:00:04 (2/3): epel/x86_64/updateinfo | 1.0 MB 00:00:13 (3/3): epel/x86_64/primary_db | 6.9 MB 00:01:24 Resolving Dependencies --> Running transaction check ---> Package httpd.x86_64 0:2.4.6-17.el7 will be installed --> Processing Dependency: httpd-tools = 2.4.6-17.el7 for package: httpd-2.4.6-17.el7.x86_64 --> Processing Dependency: libapr-1.so.0()(64bit) for package: httpd-2.4.6-17.el7.x86_64 --> Processing Dependency: libaprutil-1.so.0()(64bit) for package: httpd-2.4.6-17.el7.x86_64 --> Running transaction check ---> Package apr.x86_64 0:1.4.8-3.el7 will be installed ---> Package apr-util.x86_64 0:1.5.2-6.el7 will be installed ---> Package httpd-tools.x86_64 0:2.4.6-17.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ===================================================================================================================================== Package Arch Version Repository Size ===================================================================================================================================== Installing: httpd x86_64 2.4.6-17.el7 rhel7 1.2 M Installing for dependencies: apr x86_64 1.4.8-3.el7 rhel7 103 k apr-util x86_64 1.5.2-6.el7 rhel7 92 k httpd-tools x86_64 2.4.6-17.el7 rhel7 77 k Transaction Summary ===================================================================================================================================== Install 1 Package (+3 Dependent packages) Total download size: 1.4 M Installed size: 4.3 M Is this ok [y/d/N]: y Downloading packages: ------------------------------------------------------------------------------------------------------------------------------------- Total 174 MB/s | 1.4 MB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : apr-1.4.8-3.el7.x86_64 1/4 Installing : apr-util-1.5.2-6.el7.x86_64 2/4 Installing : httpd-tools-2.4.6-17.el7.x86_64 3/4 Installing : httpd-2.4.6-17.el7.x86_64 4/4 Verifying : httpd-tools-2.4.6-17.el7.x86_64 1/4 Verifying : apr-1.4.8-3.el7.x86_64 2/4 Verifying : apr-util-1.5.2-6.el7.x86_64 3/4 Verifying : httpd-2.4.6-17.el7.x86_64 4/4 Installed: httpd.x86_64 0:2.4.6-17.el7 Dependency Installed: apr.x86_64 0:1.4.8-3.el7 apr-util.x86_64 0:1.5.2-6.el7 httpd-tools.x86_64 0:2.4.6-17.el7 Complete!