Re-install Yum under CentOS

1, download the latest yum-3.2.28.tar.gz and unzip

#wget http://yum.baseurl.org/download/3.2/yum-3.2.28.tar.gz
#tar XVF yum-3.2.28.tar.gz

2, go to the directory, run the installation

#cd yum-3.2.28
#./yummain.py Install Yum
If you are prompted with an error: CRITICAL:yum.cli:Config error:error accessing file for Config file:///etc/

The configuration file is missing. Create a new yum.conf file under the ETC directory and run yummain.py install Yum again to successfully complete the installation.

3, last update system

#yum check-update
#yum Update
#yum Clean All

The reported error

--------------------------------------------------------------------------------------------------------------- -------

yummain.py install Yum does not work because of yummain.py not found,

[[Email protected] ~] wget http://tel.mirrors.163.com/centos/6/os/x86_64/Packages/python-urlgrabber-3.9.1-8.el6.noarch.rpm

[[Email protected] ~] wget http://tel.mirrors.163.com/centos/6/os/x86_64/Packages/python-pycurl-7.19.0-8.el6.x86_64.rpm

[[Email protected] ~] wget http://tel.mirrors.163.com/centos/6/os/x86_64/Packages/ yum-metadata-parser-1.1.2-16.el6.x86_64.rpm

[[Email protected] ~] RPM-IVH python-urlgrabber-3.9.1-8.el6.noarch.rpm python-pycurl-7.19.0-8.el6.x86_64.rpm yum-metadata-parser-1.1.2-16.el6.x86_64.rpm

If you do not install the Python-urlgrabber,python-pycurl,yum-metadata-parser 3 packages, run below./yummain.py Install Yum will report the following error:

The error is as follows

if the above RPM connection fails, please go here to find one: http://rpm.pbone.net/

Error 1: [[email protected] yum-3.4.3]#./yummain.py Traceback (most recent call last): File "./yummain.py", line-in < Module> from yum import Errors File "/root/nagios/yum-3.4.3/yum/__init__.py", line-in <module> import config File "/root/nagios/yum-3.4.3/yum/config.py", line A, in <module> from parser import Configpreprocessor, Varreplace File "/root/nagios/yum-3.4.3/yum/parser.py", line 4, in <module> import Urlgrabber importerror:no modul E named Urlgrabber

Error 2: [[email protected] yum-3.4.3]#./yummain.py Traceback (most recent call last): File "./yummain.py", line-in < Module> from yum import Errors File '/root/nagios/yum-3.4.3/yum/__init__.py ', line-in <module> import Rpmsack File "/root/nagios/yum-3.4.3/yum/rpmsack.py", line +, in <module> import yum.depsolve file "/root/nagios/yum-3.4 .3/yum/depsolve.py ", line A, in <module> from transactioninfo import transactionmember File"/root/nagios/yum-3.4 .3/yum/transactioninfo.py ", line +, in <module> from sqlitesack import yumavailablepackagesqlite File"/root/ nagios/yum-3.4.3/yum/sqlitesack.py ", line +, in <module> import Yumrepo File"/root/nagios/yum-3.4.3/yum/ yumrepo.py ", line <module> import sqlitecachec importerror:no module named SQLITECACHEC

Create a Yum configuration file

[[Email protected] ~] touch/etc/yum.conf

Note: If you do not create yum.conf, run below./yummain.py Install Yum will report the following error:

[Email protected] yum-3.4.3]#./yummain.py CRITICAL:yum.cli:Config error:error accessing file for Config file:///etc/yu M.conf

Download Yum source package and install

[[Email protected] ~] wget http://yum.baseurl.org/download/3.4/yum-3.4.3.tar.gz

Unzip the source package [[email protected] ~] Tar zxvf yum-3.4.3.tar.gz

Compile and install Yum[[email protected] ~] CD yum-3.4.3

[[email protected] yum-3.4.3]./yummain.py Install Yum

Base | 3.7 KB 00:00

base/primary_db | 4.5 MB 00:07

Extras | 3.5 KB 00:00

extras/primary_db | KB 00:03

The above hints show that Yum has been installed successfully.

Re-install Yum under CentOS