RedHat之yum解决办法
使用场景：在未注册的linux上学习相关操作时，有时基于yum来安装软件依赖环境等非常便捷，因此特提供此处理方式。仅限于个人学习使用，特此声明！
1.卸载redhat自带的yum组件
rpm -qa|grep yum|xargs rpm -e --nodeps
2.安装centos的yum包
wgethttp://centos.ustc.edu.cn/centos/5/os/x86_64/CentOS/yum-3.2.22-40.el5.centos.noarch.rpm
# rpm -ivh yum-3.2.22-40.el5.centos.noarch.rpm
warning: yum-3.2.22-40.el5.centos.noarch.rpm: Header V3 DSA signature: NOKEY, key ID e8562897
error: Failed dependencies:
yum-fastestmirror is needed by yum-3.2.22-40.el5.centos.noarch
yum-metadata-parser >= 1.1.0 is needed by yum-3.2.22-40.el5.centos.noarch
需要安装依赖包，因此分别下载并安装依赖包
# wgethttp://centos.ustc.edu.cn/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-4.el5.x86_64.rpm
# rpm -ivh yum-metadata-parser-1.1.2-4.el5.x86_64.rpm
warning: yum-metadata-parser-1.1.2-4.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID e8562897
Preparing... ###########################################
1:yum-metadata-parser ###########################################
# wgethttp://centos.ustc.edu.cn/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm
两个包相互依赖，一并安装解决
# rpm -ivh yum-3.2.22-40.el5.centos.noarch.rpm yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm
warning: yum-3.2.22-40.el5.centos.noarch.rpm: Header V3 DSA signature: NOKEY, key ID e8562897
Preparing... ###########################################
1:yum-fastestmirror ########################################### [ 50%]
2:yum ###########################################
3. 下载更新源，并存放在系统目录中
wget http://docs.linuxtone.org/soft/lemp/CentOS-Base.repo
mv CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo
4. 更新yum 资源库
yum makecache
# yum makecache
Loaded plugins: fastestmirror, product-id, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Determining fastest mirrors
addons | 1.9 kB 00:00
addons/filelists_db |570 B 00:00
addons/other_db |554 B 00:00
addons/primary_db | 1.1 kB 00:00
base | 1.1 kB 00:00
base/filelists | 3.7 MB 00:20
base/other |14 MB 01:14
base/group | 1.1 MB 00:06
base/primary | 1.3 MB 00:07
extras | 2.1 kB 00:00
extras/filelists_db | 224 kB 00:01
extras/other_db | 442 kB 00:02
extras/group | 9.7 kB 00:00
extras/primary_db | 173 kB 00:00
update | 1.9 kB 00:00
update/filelists_db | 1.1 MB 00:06
update/other_db | 6.3 MB 00:34
update/primary_db | 282 kB 00:01
base 3667/3667
base 3667/3667
base 3667/3667
Metadata Cache Created
5.有需要可以yum -y update
很实用
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