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    linux输入yum后提示: -bash: /usr/bin/yum: No such file or di

    栏目:Linux/apache问题 时间:2019-11-25 21:26

    linux输入yum后提示: -bash: /usr/bin/yum: No such file or directory的解决方案

    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

    yum remove yum

    然后就杯具了...

    [root@localhost ~]# yum 
    -bash: /usr/bin/yum: No such file or directory 

    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

    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

    关于rpm --nodeps的解释

    --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

    [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

    因为yum调用的是python,运行 Python,试下是否可行

    [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 "<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

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

    再次测试运行下yum命令,结果正常了,大喜

    [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   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: