修改RHEL6使用CentOS6的yum源

轉載自:http://mahler.blog.com/2013/04/08/%E4%BF%AE%E6%94%B9rhel-6%E7%9A%84yum%E6%BA%90/

解除安裝掉RHEL6自帶的YUM包。

使用下列指令檢查YUM的依賴關系。

rpm -qR yum

得到的依賴關系有：

[root@bogon doc]# rpm -qR yum-3.2.27-14.el6.noarch /usr/bin/python config(yum) = 3.2.27-14.el6 pygpgme python >= 2.4 python(abi) = 2.6 python-iniparse python-sqlite python-urlgrabber >= 3.9.0-8 rpm >= 0:4.4.2 rpm-python rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(FileDigests) <= 4.6.0-1 rpmlib(PartialHardlinkSets) <= 4.0.4-1 rpmlib(PayloadFilesHavePrefix) = 1.1.0 rpmlib(PayloadIsXz) = 2.4 python(abi) = 2.6 python-iniparse python-sqlite python-urlgrabber >= 3.9.0-8 rpm >= 0:4.4.2 rpm-python rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(FileDigests) <= 4.6.0-1 rpmlib(PartialHardlinkSets) <= 4.0.4-1 rpmlib(PayloadFilesHavePrefix) = 1.1.0 rpmlib(PayloadIsXz) <= 5.2-1

使用YUM來解除安裝掉自己。

指令是：

yum erase yum

運作結果是：

[root@bogon doc]# yum erase yum Loaded plugins: rhnplugin This system is not registered with RHN. RHN support will be disabled. Setting up Remove Process Resolving Dependencies --> Running transaction check ---> Package yum.noarch 0:3.2.27-14.el6 set to be erased --> Processing Dependency: yum >= 3.2.19-15 for package: yum-rhn-plugin-0.9.1-5.el6.noarch --> Processing Dependency: yum >= 3.2.25-10 for package: yum-utils-1.1.26-11.el6.noarch --> Running transaction check ---> Package yum-rhn-plugin.noarch 0:0.9.1-5.el6 set to be erased --> Processing Dependency: yum-rhn-plugin >= 0.5.3-30 for package: rhn-check-1.0.0-38.el6.noarch ---> Package yum-utils.noarch 0:1.1.26-11.el6 set to be erased --> Processing Dependency: yum-utils for package: abrt-addon-ccpp-1.1.13-4.el6.i686 --> Running transaction check ---> Package abrt-addon-ccpp.i686 0:1.1.13-4.el6 set to be erased --> Processing Dependency: abrt-addon-ccpp for package: abrt-cli-1.1.13-4.el6.i686 ---> Package rhn-check.noarch 0:1.0.0-38.el6 set to be erased --> Processing Dependency: rhn-check >= 0.0.8 for package: rhnsd-4.9.3-2.el6.i686 --> Running transaction check ---> Package abrt-cli.i686 0:1.1.13-4.el6 set to be erased ---> Package rhnsd.i686 0:4.9.3-2.el6 set to be erased --> Processing Dependency: rhnsd for package: rhn-setup-1.0.0-38.el6.noarch --> Running transaction check ---> Package rhn-setup.noarch 0:1.0.0-38.el6 set to be erased --> Finished Dependency Resolution

Dependencies Resolved

================================================================================================

Package Arch Version Repository Size

================================================================================================

Removing:

yum noarch 3.2.27-14.el6 @anaconda-RedHatEnterpriseLinux-201009221732.i386/6.0 3.8 M

Removing for dependencies:

abrt-addon-ccpp

i686 1.1.13-4.el6 @anaconda-RedHatEnterpriseLinux-201009221732.i386/6.0 49 k

abrt-cli i686 1.1.13-4.el6 @anaconda-RedHatEnterpriseLinux-201009221732.i386/6.0 63 k

rhn-check noarch 1.0.0-38.el6 @anaconda-RedHatEnterpriseLinux-201009221732.i386/6.0 38 k

rhn-setup noarch 1.0.0-38.el6 @anaconda-RedHatEnterpriseLinux-201009221732.i386/6.0 190 k

rhnsd i686 4.9.3-2.el6 @anaconda-RedHatEnterpriseLinux-201009221732.i386/6.0 89 k

yum-rhn-plugin

noarch 0.9.1-5.el6 @anaconda-RedHatEnterpriseLinux-201009221732.i386/6.0 174 k

yum-utils noarch 1.1.26-11.el6 @anaconda-RedHatEnterpriseLinux-201009221732.i386/6.0 239 k

Transaction Summary

Remove 8 Package(s)

Reinstall 0 Package(s)

Downgrade 0 Package(s)

Is this ok [y/N]: y

Downloading Packages:

Running rpm_check_debug

Running Transaction Test

Transaction Test Succeeded

Running Transaction

Erasing : abrt-cli-1.1.13-4.el6.i686 1/8

Erasing : rhn-check-1.0.0-38.el6.noarch 2/8

Erasing : yum-rhn-plugin-0.9.1-5.el6.noarch 3/8

Erasing : rhn-setup-1.0.0-38.el6.noarch 4/8

Erasing : rhnsd-4.9.3-2.el6.i686 5/8

Erasing : abrt-addon-ccpp-1.1.13-4.el6.i686 6/8

Erasing : yum-utils-1.1.26-11.el6.noarch 7/8

Erasing : yum-3.2.27-14.el6.noarch 8/8

Removed:

yum.noarch 0:3.2.27-14.el6

Dependency Removed:

abrt-addon-ccpp.i686 0:1.1.13-4.el6 abrt-cli.i686 0:1.1.13-4.el6 rhn-check.noarch 0:1.0.0-38.el6 rhn-setup.noarch 0:1.0.0-38.el6

rhnsd.i686 0:4.9.3-2.el6 yum-rhn-plugin.noarch 0:0.9.1-5.el6 yum-utils.noarch 0:1.1.26-11.el6

Complete!

重新安裝Centos的YUM包。

然後重新安裝Centos6.0的YUM包。

安裝YUM需要的RPM包有：

yum-3.2.27-14.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm

這兩個RPM包的下載下傳位址為：

http://mirrors.163.com/centos/6/os/i386/Packages/yum-3.2.29-40.el6.centos.noarch.rpm

http://mirrors.163.com/centos/6/os/i386/Packages/yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm

建議将2個RPM包下載下傳到一個單獨的檔案夾。下載下傳完成後，安裝這2個RPM包。

安裝指令：

省時間的方式是：

rpm -ivh *.rpm

NB的方式是：

rpm -ivh yum-3.2.27-14.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.26-11.el6.noarch.rpm

小問題：

如果直接安裝Centos的YUM包，并修改YUM源後會發現不能夠正常的Yum install檔案，并提示下列錯誤：

http://mirrors.163.com/centos/%24releasever/os/i386/repodata/repomd.xml: [Errno 14] HTTP Error 404 : http://mirrors.163.com/centos/%24releasever/os/i386/repodata/repomd.xml Trying other mirror. Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

這是因為沒有修改RHEL的發行版本造成的。如果要修正這個問題則需要執行下列指令：

rpm -e --nodeps redhat-release-server-6Server-6.0.0.37.el6.i686 redhat-indexhtml-6-1.el6.noarch

然後下載下傳Centos的release和indexhtml包，安裝即可。

wget http://mirrors.163.com/centos/6.0/os/i386/Packages/centos-indexhtml-6-1.el6.centos.noarch.rpm wget http://mirrors.163.com/centos/6.0/os/i386/Packages/centos-release-6-0.el6.centos.5.i686.rpm