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              Linux中yum管理工具被误删的解决办法

              添加时间2019-2-24 21:37:37 添加 思海网络
              今天在安装程序时发现有一个插件未安装随?#26234;?#20102;一个命令,看都没看

              代码如下:

              yum remove yum

              然后就杯具了...

              代码如下:

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

               
              这个?#20013;?#30340;手误倒不至于让整个系?#31243;被Gyum 却无法使用了于是我试着折腾了一番


              代码如下:

              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> 
              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> 
              rpm -ivh --nodeps <a href="http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-3.2.22-26.el5.centos.noarch.rpm[/code">http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-3.2.22-26.el5.centos.noarch.rpm[/code</a>]
              关于rpm --nodeps的解释
              [code]
              --nodeps don't verify package dependencies

              接下来再次尝试输入yum,结果再次出现莫名错误


              代码如下:

              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: 
              <a href="http://wiki.linux.duke.edu/YumFaq">http://wiki.linux.duke.edu/YumFaq</a> 
              因为yum调用的是python,运行 Python试下是否可行


              代码如下:

              [[email protected]~]# 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 "<stdin>", 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 
              >>> 

              提示缺少libxml2.so.2安装一下试试

              代码如下:

              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[/code">http://mirrors.163.com/centos/5/os/x86_64/CentOS/libxml2-2.6.26-2.1.2.8.x86_64.rpm[/code</a>]
              再次测试运行下yum命令结果正常了大喜
              [code]
              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 show duplicates, 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 install root 
              --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: 
              最后更新一下系统吧

              代码如下:

              yum update

              好了 这样yum问题就完全解决了


              关键字Linuxyum管理工具
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