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This article introduces the relevant knowledge of "how to solve the problem that yum management tools were mistakenly deleted in Linux". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Today, when I was installing the program, I found that there was a plug-in that was not installed, so I typed a command without even looking at it.

The code is as follows:

Yum remove yum

And then it was terrible.

The code is as follows:

[root@localhost ~] # yum

-bash: / usr/bin/yum: No such file or directory

This careless hand didn't paralyze the whole system, but yum didn't work. So, I tried to do something about it.

The code is as follows:

Rpm-ivh-- nodeps http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-14.el5.centos.1.noarch.rpm

Rpm-ivh-- nodeps http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.x86_64.rpm

Rpm-ivh-- nodeps http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-3.2.22-26.el5.centos.noarch.rpm[/code]

On the explanation of rpm-nodeps

[code]

-- nodeps don't verify package dependencies

Next, try typing yum again, resulting in an inexplicable error again

The code is as follows:

[root@localhost ~] # yum

There was a problem importing one of the Python modules

Required to run yum. The error leading to this problem was:

Libxml2.so.2: cannot open shared object file: No such file or directory

Please install a package which provides this module, or

Verify that the module is installed correctly.

It's possible that the above module doesn't match the

Current version of Python, which is:

2.4.3 (# 1, Nov 11 2010, 13:30:19)

[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)]

If you cannot solve this problem yourself, please go to

The yum faq at:

Http://wiki.linux.duke.edu/YumFaq

Because yum calls python, run Python to see if it is feasible

The code is as follows:

[root@localhost~] # python

Python 2.4.3 (# 1, Nov 11 2010, 13:30:19)

[GCC 4.1.2 20080704 Red Hat 4.1.2-48)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

> import yum

Traceback (most recent call last):

File "", line 1, in?

File "/ usr/lib/python2.4/site-packages/yum/__init__.py", line 54, in?

Import transactioninfo

File "/ usr/lib/python2.4/site-packages/yum/transactioninfo.py", line 31, in?

From sqlitesack import YumAvailablePackageSqlite

File "/ usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 26, in?

Import yumRepo

File "/ usr/lib/python2.4/site-packages/yum/yumRepo.py", line 32, in?

Import sqlitecachec

File "/ usr/lib64/python2.4/site-packages/sqlitecachec.py", line 19, in?

Import _ sqlitecache

ImportError: libxml2.so.2: cannot open shared object file: No such file or directory

> > >

Note that libxml2.so.2 is missing. Try to install it.

The code is as follows:

Rpm-ivh http://mirrors.163.com/centos/5/os/x86_64/CentOS/libxml2-2.6.26-2.1.2.8.x86_64.rpm[/code]

Test again and run the yum command, the result is normal, overjoyed

[code]

[root@localhost ~] # yum

Loaded plugins: fastestmirror

You need to give some command

Usage: yum [options] COMMAND

List of Commands:

Check-update Check for available package updates

Clean Remove cached data

Deplist List a package's dependencies

Downgrade downgrade a package

Erase Remove a package or packages from your system

Groupinfo Display details about a package group

Groupinstall Install the packages in a group on your system

Grouplist List available package groups

Groupremove Remove the packages in a group from your system

Help Display a helpful usage message

Info Display details about a package or group of packages

Install Install a package or packages on your system

List List a package or groups of packages

Localinstall Install a local RPM

Makecache Generate the metadata cache

Provides Find what package provides the given value

Reinstall reinstall a package

Repolist Display the configured software repositories

Resolvedep Determine which package provides the given dependency

Search Search package details for the given string

Shell Run an interactive yum shell

Update Update a package or packages on your system

Upgrade Update packages taking obsoletes into account

Options:

-h,-- help show this help message and exit

-t,-- tolerant be tolerant of errors

-C run entirely from cache, don't update cache

-c [config file] config file location

-R [minutes] maximum command wait time

-d [debug level] debugging output level

-- showduplicates showduplicates, in repos, in list/search commands

-e [error level] error output level

-Q,-- quiet quiet operation

-v,-- verbose verbose operation

-y answer yes for all questions

-- version show Yum version and exit

Installroot= [path] set installroot

-enablerepo= [repo] enable one or more repositories (wildcards allowed)

-disablerepo= [repo] disable one or more repositories (wildcards allowed)

-x [package],-- exclude= [package]

Exclude package (s) by name or glob

-- disableexcludes= [repo]

Disable exclude from main, for a repo or for

Everything

-- obsoletes enable obsoletes processing during updates

-- noplugins disable Yum plugins

-- nogpgcheck disable gpg signature checking

-- disableplugin= [plugin]

Disable plugins by name

-- enableplugin= [plugin]

Enable plugins by name

-- skip-broken skip packages with depsolving problems

-- color=COLOR control whether color is used

Plugin Options:

Finally, update the system quickly.

The code is as follows:

Yum update

All right, so the yum problem is completely solved!

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