最近要给局域网linux机器安装一些rpm包，奈何依赖是个痛苦的问题。

搜索了很久还是决定采取修改本机yum为iso package的方法。实践成功，简要介绍如下：

准备工作：

1、已经安装好centos的系统主机一台

2、centos iso或光盘一张

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1、将主机base源及media源备份并将media源切换至iso mount目录

root权限操作：

cd /etc/yum.repos.d/mv CentOS-Base.repo CentOS-Base.repo.bakcp CentOS-Media.repo CentOS-Media.repo.bakvi CentOS-Media.repo

修改处见#之后的描述（实际修改无需#说明）

# CentOS-Media.repo##  This repo can be used with mounted DVD media, verify the mount point for#  CentOS-7.  You can use this repo and yum to install items directly off the#  DVD ISO that we release.## To use this repo, put in your DVD and use it with the other repos too:#  yum --enablerepo=c7-media [command]## or for ONLY the media repo, do this:##  yum --disablerepo=\* --enablerepo=c7-media [command][c7-media]name=CentOS-$releasever - Mediabaseurl=file:///media/CentOS/#        file:///media/cdrom/                #这一行注释掉#        file:///media/cdrecorder/           #这一行注释掉gpgcheck=1enabled=1                                    #结果由0改为1，表示配置生效gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

2、将iso光盘插入光驱或将iso包挂载到机器中（本次测试直接将iso挂载到虚拟机centos中）

执行命令：

注意：必须纯iso挂载，不可修改iso源文件，否则list会报错，不知道达人是否遇到此情况。本来想ultraiso加一点自己的脚本，但被阻碍，无奈...

# mkdir /media/CentOS# mount -t auto /dev/cdrom /media/CentOSmount: /dev/sr0 is write-protected, mounting read-only# yum clean allLoaded plugins: fastestmirrorCleaning repos: c7-mediaCleaning up everything# yum listLoaded plugins: fastestmirrorc7-media                                                                                                                                                                     | 3.6 kB  00:00:00     (1/2): c7-media/group_gz                                                                                                                                                     | 155 kB  00:00:00     (2/2): c7-media/primary_db                                                                                                                                                   | 2.8 MB  00:00:00     Determining fastest mirrorsInstalled PackagesNetworkManager.x86_64                                                                               1:1.0.6-27.el7                                                                         @anacondaNetworkManager-libnm.x86_64                                                                         1:1.0.6-27.el7                                                                         @anacondaNetworkManager-team.x86_64                                                                          1:1.0.6-27.el7                                                                         @anaconda......zenity.x86_64                                                                                       3.8.0-5.el7                                                                            c7-media zip.x86_64                                                                                          3.0-10.el7                                                                             c7-media zlib-devel.x86_64                                                                                   1.2.7-15.el7                                                                           c7-media zsh.x86_64                                                                                          5.0.2-14.el7                                                                           c7-media zziplib.x86_64                                                                                      0.13.62-5.el7                                                                          c7-media

测试安装policycoreutils-python，这个依赖我不说大家都懂的。。。很难搞定纯rpm

# yum install -y policycoreutils-pythonLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfileResolving Dependencies--> Running transaction check---> Package policycoreutils-python.x86_64 0:2.2.5-20.el7 will be installed--> Processing Dependency: libsemanage-python >= 2.1.10-1 for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: audit-libs-python >= 2.1.3-4 for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: python-IPy for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: libqpol.so.1(VERS_1.4)(64bit) for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: libqpol.so.1(VERS_1.2)(64bit) for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: libcgroup for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: libapol.so.4(VERS_4.0)(64bit) for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: checkpolicy for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: libqpol.so.1()(64bit) for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Processing Dependency: libapol.so.4()(64bit) for package: policycoreutils-python-2.2.5-20.el7.x86_64--> Running transaction check---> Package audit-libs-python.x86_64 0:2.4.1-5.el7 will be installed---> Package checkpolicy.x86_64 0:2.1.12-6.el7 will be installed---> Package libcgroup.x86_64 0:0.41-8.el7 will be installed---> Package libsemanage-python.x86_64 0:2.1.10-18.el7 will be installed---> Package python-IPy.noarch 0:0.75-6.el7 will be installed---> Package setools-libs.x86_64 0:3.3.7-46.el7 will be installed--> Finished Dependency ResolutionDependencies Resolved==================================================================================================================================================================================================== Package                                                  Arch                                     Version                                         Repository                                  Size====================================================================================================================================================================================================Installing: policycoreutils-python                                   x86_64                                   2.2.5-20.el7                                    c7-media                                   435 kInstalling for dependencies: audit-libs-python                                        x86_64                                   2.4.1-5.el7                                     c7-media                                    69 k checkpolicy                                              x86_64                                   2.1.12-6.el7                                    c7-media                                   247 k libcgroup                                                x86_64                                   0.41-8.el7                                      c7-media                                    64 k libsemanage-python                                       x86_64                                   2.1.10-18.el7                                   c7-media                                    94 k python-IPy                                               noarch                                   0.75-6.el7                                      c7-media                                    32 k setools-libs                                             x86_64                                   3.3.7-46.el7                                    c7-media                                   485 kTransaction Summary====================================================================================================================================================================================================Install  1 Package (+6 Dependent packages)Total download size: 1.4 MInstalled size: 4.5 MDownloading packages:warning: /media/CentOS/Packages/audit-libs-python-2.4.1-5.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEYPublic key for audit-libs-python-2.4.1-5.el7.x86_64.rpm is not installed----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Total                                                                                                                                                               2.9 MB/s | 1.4 MB  00:00:00     Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7Importing GPG key 0xF4A80EB5: Userid     : "CentOS-7 Key (CentOS 7 Official Signing Key) 
     
      " Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5 Package    : centos-release-7-2.1511.el7.centos.2.10.x86_64 (@anaconda) From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7Running transaction checkRunning transaction testTransaction test succeededRunning transaction  Installing : audit-libs-python-2.4.1-5.el7.x86_64                                                                                                                                             1/7   Installing : libsemanage-python-2.1.10-18.el7.x86_64                                                                                                                                          2/7   Installing : python-IPy-0.75-6.el7.noarch                                                                                                                                                     3/7   Installing : checkpolicy-2.1.12-6.el7.x86_64                                                                                                                                                  4/7   Installing : libcgroup-0.41-8.el7.x86_64                                                                                                                                                      5/7   Installing : setools-libs-3.3.7-46.el7.x86_64                                                                                                                                                 6/7   Installing : policycoreutils-python-2.2.5-20.el7.x86_64                                                                                                                                       7/7   Verifying  : setools-libs-3.3.7-46.el7.x86_64                                                                                                                                                 1/7   Verifying  : libcgroup-0.41-8.el7.x86_64                                                                                                                                                      2/7   Verifying  : checkpolicy-2.1.12-6.el7.x86_64                                                                                                                                                  3/7   Verifying  : python-IPy-0.75-6.el7.noarch                                                                                                                                                     4/7   Verifying  : libsemanage-python-2.1.10-18.el7.x86_64                                                                                                                                          5/7   Verifying  : policycoreutils-python-2.2.5-20.el7.x86_64                                                                                                                                       6/7   Verifying  : audit-libs-python-2.4.1-5.el7.x86_64                                                                                                                                             7/7 Installed:  policycoreutils-python.x86_64 0:2.2.5-20.el7                                                                                                                                                      Dependency Installed:  audit-libs-python.x86_64 0:2.4.1-5.el7    checkpolicy.x86_64 0:2.1.12-6.el7    libcgroup.x86_64 0:0.41-8.el7    libsemanage-python.x86_64 0:2.1.10-18.el7    python-IPy.noarch 0:0.75-6.el7     setools-libs.x86_64 0:3.3.7-46.el7       Complete!
     

最后安装成功

2016-2-3