今天帮同事搭建环境时碰到yum更新出问题了，报如下错误：
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. $releasever is not a valid release or hasnt been released yet/
removing mirrorlist with no valid mirrors: /var/cache/yum/base/mirrorlist.txt
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again
从字面意思是看是不能正确连接到http或是ftp的真实地址上。
1.有可能是防火墙阻碍了出网http请求或是ftp请求，请检查网关防火墙。
2.有可能是dns不对，无法正常解析，换成8.8.4.4
3.系统取不到Release号
我这里碰到真正的原因是就是3，系统读取不到Release号。
正常一般可以看到版本号
# lsb_release -a
LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: CentOS
Description: CentOS release 6.2 (Final)
Release: 6.2
Codename: Final |
但是同事的环境上确是，原因就不说了，又想骂人了，哎。
LSB Version: :core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: n/a
Description: n/a
Release: n/a
Codename: n/a |
而/etc/yum.repos.d下的*.repo源文件中都是baseurl都是带变量的
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
所以yum去尝试读取xml文件自然失败了。
所以需要修改*.repo源文件中将$releasever变量全替换成6即可正常yum了。
|
cat /etc/yum.repos.d/CentOS6-Base-163.repo
# CentOS-Base.repo
[base]
name=CentOS-6 - Base - 163.com
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-6 - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-6 - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
[contrib]
name=CentOS-6 - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/6/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6 |
看看这次更新缓存就成功了。
# yum makecache
base | 3.7 kB 00:00
base/filelists_db | 5.9 MB 00:04
base/primary_db | 4.5 MB 00:03
base/other_db | 2.6 MB 00:01
base/group_gz | 211 kB 00:00
extras | 3.5 kB 00:00
extras/filelists_db | 13 kB 00:00
extras/prestodelta | 1.3 kB 00:00
extras/primary_db | 23 kB 00:00
extras/other_db | 7.9 kB 00:00
updates | 3.5 kB 00:00
updates/filelists_db | 3.6 MB 00:02
updates/prestodelta | 642 kB 00:00
updates/primary_db | 4.6 MB 00:03
updates/other_db | 473 kB 00:00 |
posted on 2015-03-20 13:37
回忆之城 阅读(746)
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