rhel7.0解决：This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

看这篇文章前，先说一下我的实际情况。本来要部署docker服务的，然后yum安装任何软件都不起效果，最后通过老师远程的帮助，最后成功安装上docker，老师的解决办法就是忽略这个问题，直接自己配置网络yum源，然后完美解决（对，没错下面的文章内容可以不用看了）。由于机子没开虚拟化，结果启动docker服务时报错。开启CPU虚拟化后，又出现新的错误，docker的oci报错，oci是docker网络标准，结果更新系统，重启机器问题已解决。

使用yum命令安装软件时候出现以下错误：

Loaded plugins: product-id, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
http://mirrors.163.com/centos/7Server/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.

 One of the configured repositories failed (CentOS-7Server - Base - .com),
 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:

     . Contact the upstream for the repository and get them to fix the problem.

     . 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).

     . 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 base

     . 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=base.skip_if_unavailable=true

failure: repodata/repomd.xml from base: [Errno ] No more mirrors to try.
http://mirrors.163.com/centos/7Server/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

网上说：使用redhat的yum源是需要注册付费的

1.毫不犹豫卸载RedHat自带的yum包

# rpm -qa|grep yum|xargs rpm -e --nodeps

[root@localhost yum.repos.d]# rpm -qa|grep yum
yum-metadata-parser-1.1.-.el7.x86_64
yum-utils-1.1.-.el7.noarch
yum-3.4.-.el7.noarch
yum-rhn-plugin-2.0.-.el7.noarch
[root@localhost yum.repos.d]# rpm -qa|grep yum|xargs rpm -e --nodeps
[root@localhost yum.repos.d]# rpm -qa|grep yum
[root@localhost yum.repos.d]#

2.使用国内新的centos的yum包替换redhat自带的

首先你得先弄清楚自己的系统版本号和系统位数

如果是i386或者i686就是32位的，如果是x86_64就是64位的

# cat /etc/redhat-release

# uname -a

[root@localhost ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.0 (Maipo)
[root@localhost ~]# uname -a
Linux localhost.localdomain 3.10.-.el7.x86_64 # SMP Mon May  :: EDT  x86_64 x86_64 x86_64 GNU/Linux
[root@localhost ~]#

然后到

http://mirrors.kernel.org/centos/

或者

http://mirrors.163.com/centos/

找对应系统版本号和系统位数下载，找到yum、yum-plugin-fastestmirror、yum-metadata-parser、python-urlgrabber这四个软件包下载

上传都Linux系统中

[root@localhost ~]# ls
anaconda-ks.cfg                       python-urlgrabber-3.10-.el7.noarch.rpm  yum-metadata-parser-1.1.-.el7.x86_64.rpm
python-iniparse-0.4-.el7.noarch.rpm  yum-3.4.-.el7.centos.noarch.rpm      yum-plugin-fastestmirror-1.1.-.el7.noarch.rpm
[root@localhost ~]#

你也可以直接使用wget命令直接下载，命令如下：

# wget https://mirrors.edge.kernel.org/centos/7/os/x86_64/Packages/yum-3.4.3-161.el7.centos.noarch.rpm

# wget https://mirrors.edge.kernel.org/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-50.el7.noarch.rpm

# wget https://mirrors.edge.kernel.org/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm

# wget https://mirrors.edge.kernel.org/centos/7/os/x86_64/Packages/python-urlgrabber-3.10-9.el7.noarch.rpm

# wget https://mirrors.edge.kernel.org/centos/7/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpm

接着就是分别安装几个包

# rpm -ivh python-iniparse-0.4-9.el7.noarch.rpm

[root@localhost ~]# rpm -ivh python-iniparse-0.4-.el7.noarch.rpm
warning: python-iniparse-0.4-.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, ke                                                                                                          y ID f4a80eb5: NOKEY
Preparing...                          ################################# [%]
        package python-iniparse-0.4-.el7.noarch is already installed
        file /usr/lib/python2./site-packages/iniparse/ini.pyc from install of py                                                                                                          thon-iniparse-0.4-.el7.noarch conflicts with file from package python-iniparse-                                                                                                          .-.el7.noarch
        file /usr/lib/python2./site-packages/iniparse/ini.pyo from install of py                                                                                                          thon-iniparse-0.4-.el7.noarch conflicts with file from package python-iniparse-                                                                                                          .-.el7.noarch

# rpm -ivh python-urlgrabber-3.10-9.el7.noarch.rpm

[root@localhost ~]# rpm -ivh python-urlgrabber-3.10-.el7.noarch.rpm
warning: python-urlgrabber-3.10-.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing...                          ################################# [%]
        file /usr/lib/python2./site-packages/urlgrabber/grabber.py from install of python-urlgrabber-3.10-.el7.noarch conflicts with file from package python-urlgrabber-3.10-.el7.noarch
        file /usr/lib/python2./site-packages/urlgrabber/grabber.pyc from install of python-urlgrabber-3.10-.el7.noarch conflicts with file from package python-urlgrabber-3.10-.el7.noarch
        file /usr/lib/python2./site-packages/urlgrabber/grabber.pyo from install of python-urlgrabber-3.10-.el7.noarch conflicts with file from package python-urlgrabber-3.10-.el7.noarch

# rpm -ivh yum-metadata-parser-1.1.4-10.el7.x86_64.rpm

[root@localhost ~]# rpm -ivh yum-metadata-parser-1.1.-.el7.x86_64.rpm
warning: yum-metadata-parser-1.1.-.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing...                          ################################# [%]
Updating / installing...
   :yum-metadata-parser-1.1.-.el7 ################################# [%]

这2个rpm要一起装！！！

# rpm -ivh yum-3.4.3-161.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-50.el7.noarch.rpm

结果报错了

[root@localhost ~]# rpm -ivh yum-3.4.-.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.-.el7.noarch.rpm
warning: yum-3.4.-.el7.centos.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
error: Failed dependencies:
        python-urlgrabber >= 3.10- is needed by yum-3.4.-.el7.centos.noarch
        rpm >= :4.11.- is needed by yum-3.4.-.el7.centos.noarch

然后我三个包一起装

# rpm -ivh yum-3.4.3-161.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-50.el7.noarch.rpm python-urlgrabber-3.10-9.el7.noarch.rpm

出现如下错误

[root@localhost ~]# rpm -ivh yum-3.4.-.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.-.el7.noarch.rpm python-urlgrabber-3.10-.el7.noarch.rpm
warning: yum-3.4.-.el7.centos.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
error: Failed dependencies:
        rpm >= :4.11.- is needed by yum-3.4.-.el7.centos.noarch
[root@localhost ~]#

解决方法: 将所依赖的python-urlgrabber和rpm包升级

# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/rpm-4.11.3-32.el7.x86_64.rpm

当我执行这条命令的时候报错了，fuck！！

ping百度域名也能通

[root@localhost ~]# wget http://mirrors.163.com/centos/7/os/x86_64/Packages/rpm-4.11.3-32.el7.x86_64.rpm
---- ::--  http://mirrors.163.com/centos/7/os/x86_64/Packages/rpm-4.11.3-32.el7.x86_64.rpm
Resolving mirrors..com (mirrors..com)... 59.111.0.251
Connecting to mirrors..com (mirrors..com)|59.111.0.251|:... connected.
HTTP request sent, awaiting response...  Not Found
-- :: ERROR : Not Found.

[root@localhost ~]# ping www.baidu.com
PING www.a.shifen.com (61.135.169.121) () bytes of data.
 bytes from 61.135.169.121: icmp_seq= ttl= time=3.74 ms
 bytes from 61.135.169.121: icmp_seq= ttl= time=3.66 ms
^C
--- www.a.shifen.com ping statistics ---
 packets transmitted,  received, % packet loss, time 1001ms
rtt min/avg/max/mdev = 3.668/3.705/3.743/0.071 ms
[root@localhost ~]#

然后只能自行下载然后上传到Linux

[root@localhost ~]# ls
anaconda-ks.cfg                          rpm-4.11.-.el7.x86_64.rpm                 yum-plugin-fastestmirror-1.1.-.el7.noarch.rpm
python-iniparse-0.4-.el7.noarch.rpm     yum-3.4.-.el7.centos.noarch.rpm
python-urlgrabber-3.10-.el7.noarch.rpm  yum-metadata-parser-1.1.-.el7.x86_64.rpm
[root@localhost ~]#

升级安装

# rpm -Uvh rpm-4.11.3-35.el7.x86_64.rpm --nodeps

# rpm -Uvh python-urlgrabber-3.10-9.el7.noarch.rpm --nodeps

[root@localhost ~]# rpm -Uvh rpm-4.11.-.el7.x86_64.rpm --nodeps
warning: rpm-4.11.-.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing...                          ################################# [%]
Updating / installing...
   :rpm-4.11.-.el7                ################################# [ %]
Cleaning up / removing...
   :rpm-4.11.-.el7                ################################# [%]
[root@localhost ~]#
[root@localhost ~]# rpm -Uvh python-urlgrabber-3.10-.el7.noarch.rpm --nodeps
warning: python-urlgrabber-3.10-.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing...                          ################################# [%]
Updating / installing...
   :python-urlgrabber-3.10-.el7     ################################# [ %]
Cleaning up / removing...
   :python-urlgrabber-3.10-.el7     ################################# [%]
[root@localhost ~]#

再次安装

# rpm -ivh yum-3.4.3-161.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-50.el7.noarch.rpm

[root@localhost ~]# rpm -ivh yum-3.4.-.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.-.el7.noarch.rpm
warning: yum-3.4.-.el7.centos.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
Preparing...                          ################################# [%]
Updating / installing...
   :yum-plugin-fastestmirror-1.1.-################################# [ %]
   :yum-3.4.-.el7.centos         ################################# [%]
[root@localhost ~]#

查看所有yum包

[root@localhost ~]# rpm -qa | grep yum
yum-metadata-parser-1.1.-.el7.x86_64
yum-3.4.-.el7.centos.noarch
yum-plugin-fastestmirror-1.1.-.el7.noarch

end

参考博客：

https://blog.csdn.net/indexman/article/details/79570577

https://blog.csdn.net/ytx2014214081/article/details/78468947

redhat7更换yum

https://blog.csdn.net/qq_39136872/article/details/81225752