Linux中yum管理工具被误删的解决办法
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>今天在安装程序时，发现有一个插件未安装，我就随手敲了一个命令,看都没看<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
<p>
代码如下:</p>
</div>
<div class="msgborder" id="phpcode9" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
<br>
yum remove yum</div>
<p>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>然后就杯具了...</span></p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
<p>
代码如下:</p>
</div>
<div class="msgborder" id="phpcode10" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
<br>
# yum <br>
-bash: /usr/bin/yum: No such file or directory</div>
<p>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'> </span></p>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
</p>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
这个粗心的手误倒不至于让整个系统瘫痪，yum 却无法使用了。于是，我试着折腾了一番<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
<p>
代码如下:</p>
</div>
<div class="msgborder" id="phpcode11" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
<br>
rpm -ivh --nodeps <a href="http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-14.el5.centos.1.noarch.rpm">http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-14.el5.centos.1.noarch.rpm</a> <br>
rpm -ivh --nodeps <a href="http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.x86_64.rpm">http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.x86_64.rpm</a> <br>
rpm -ivh --nodeps <a href="http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-3.2.22-26.el5.centos.noarch.rpm<br>
关于rpm --nodeps的解释<br>
<br>
--nodeps don't verify package dependencies</div>
<p>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>接下来，再次尝试输入yum,结果再次出现莫名错误</span></p>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
</p>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
<p>
代码如下:</p>
</div>
<div class="msgborder" id="phpcode12" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
<br>
# yum <br>
There was a problem importing one of the Python modules <br>
required to run yum. The error leading to this problem was: <br><br>
libxml2.so.2: cannot open shared object file: No such file or directory <br><br>
Please install a package which provides this module, or <br>
verify that the module is installed correctly. <br><br>
It's possible that the above module doesn't match the <br>
current version of Python, which is: <br>
2.4.3 (#1, Nov 11 2010, 13:30:19) <br>
<br><br>
If you cannot solve this problem yourself, please go to <br>
the yum faq at: <br>
<a href="http://wiki.linux.duke.edu/YumFaq">http://wiki.linux.duke.edu/YumFaq</a> </div>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
</p>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
因为yum调用的是python,运行 Python，试下是否可行<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
<p>
代码如下:</p>
</div>
<div class="msgborder" id="phpcode13" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
<br>
# python <br>
Python 2.4.3 (#1, Nov 11 2010, 13:30:19) <br>
on linux2 <br>
Type "help", "copyright", "credits" or "license" for more information. <br>
>>> import yum <br>
Traceback (most recent call last): <br>
File "<stdin>", line 1, in ? <br>
File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 54, in ? <br>
import transactioninfo <br>
File "/usr/lib/python2.4/site-packages/yum/transactioninfo.py", line 31, in ? <br>
from sqlitesack import YumAvailablePackageSqlite <br>
File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 26, in ? <br>
import yumRepo <br>
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 32, in ? <br>
import sqlitecachec <br>
File "/usr/lib64/python2.4/site-packages/sqlitecachec.py", line 19, in ? <br>
import _sqlitecache <br>
ImportError: libxml2.so.2: cannot open shared object file: No such file or directory <br>
>>> </div>
<p>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>提示缺少libxml2.so.2，安装一下试试</span></p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
<p>
代码如下:</p>
</div>
<div class="msgborder" id="phpcode14" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
<br>
rpm -ivh <a href="http://mirrors.163.com/centos/5/os/x86_64/CentOS/libxml2-2.6.26-2.1.2.8.x86_64.rpm<br>
再次测试运行下yum命令，结果正常了，大喜<br>
<br>
# yum <br>
Loaded plugins: fastestmirror <br>
You need to give some command <br>
usage: yum COMMAND <br><br>
List of Commands: <br><br>
check-update Check for available package updates <br>
clean Remove cached data <br>
deplist List a package's dependencies <br>
downgrade downgrade a package <br>
erase Remove a package or packages from your system <br>
groupinfo Display details about a package group <br>
groupinstall Install the packages in a group on your system <br>
grouplist List available package groups <br>
groupremove Remove the packages in a group from your system <br>
help Display a helpful usage message <br>
info Display details about a package or group of packages <br>
install Install a package or packages on your system <br>
list List a package or groups of packages <br>
localinstall Install a local RPM <br>
makecache Generate the metadata cache <br>
provides Find what package provides the given value <br>
reinstall reinstall a package <br>
repolist Display the configured software repositories <br>
resolvedep Determine which package provides the given dependency <br>
search Search package details for the given string <br>
shell Run an interactive yum shell <br>
update Update a package or packages on your system <br>
upgrade Update packages taking obsoletes into account <br><br><br>
options: <br>
-h, --help show this help message and exit <br>
-t, --tolerant be tolerant of errors <br>
-C run entirely from cache, don't update cache <br>
-c config file location <br>
-R maximum command wait time <br>
-d debugging output level <br>
--showduplicates show duplicates, in repos, in list/search commands <br>
-e error output level <br>
-q, --quiet quiet operation <br>
-v, --verbose verbose operation <br>
-y answer yes for all questions <br>
--version show Yum version and exit <br>
--installroot= set install root <br>
--enablerepo= enable one or more repositories (wildcards allowed) <br>
--disablerepo= disable one or more repositories (wildcards allowed) <br>
-x , --exclude= <br>
exclude package(s) by name or glob <br>
--disableexcludes= <br>
disable exclude from main, for a repo or for <br>
everything <br>
--obsoletes enable obsoletes processing during updates <br>
--noplugins disable Yum plugins <br>
--nogpgcheck disable gpg signature checking <br>
--disableplugin= <br>
disable plugins by name <br>
--enableplugin= <br>
enable plugins by name <br>
--skip-broken skip packages with depsolving problems <br>
--color=COLOR control whether color is used <br><br>
Plugin Options: </div>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
</p>
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>
最后，赶紧更新一下系统吧<br>
</p>
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div class="right">
<span><u>复制代码</u></span>
</div>
<p>
代码如下:</p>
</div>
<div class="msgborder" id="phpcode15" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
<br>
yum update</div>
<p>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>好了 这样yum问题就完全解决了！</span></p>
頁:
[1]