linux輸入yum后提示： -bash: /usr/bin/yum: No such file or directory的解決方案
今天在安裝程序時，發現有一個插件未安裝，我就隨手敲了一個命令,看都沒看
yum remove yum
然后就杯具了...
1 [root@localhost ~]# yum 2 -bash: /usr/bin/yum: No such file or directory
這個粗心的手誤倒不至於讓整個系統癱瘓，yum 卻無法使用了。於是，我試着折騰了一番
1 rpm -ivh --nodeps http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-14.el5.centos.1.noarch.rpm 2 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 3 rpm -ivh --nodeps http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-3.2.22-26.el5.centos.noarch.rpm
關於rpm --nodeps的解釋
1 --nodeps don't verify package dependencies
接下來，再次嘗試輸入yum,結果再次出現莫名錯誤
1 [root@localhost ~]# yum 2 There was a problem importing one of the Python modules 3 required to run yum. The error leading to this problem was: 4 5 libxml2.so.2: cannot open shared object file: No such file or directory 6 7 Please install a package which provides this module, or 8 verify that the module is installed correctly. 9 10 It's possible that the above module doesn't match the 11 current version of Python, which is: 12 2.4.3 (#1, Nov 11 2010, 13:30:19) 13 [GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] 14 15 If you cannot solve this problem yourself, please go to 16 the yum faq at: 17 http://wiki.linux.duke.edu/YumFaq
因為yum調用的是python,運行 Python，試下是否可行
1 [root@localhost~]# python 2 Python 2.4.3 (#1, Nov 11 2010, 13:30:19) 3 [GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2 4 Type "help", "copyright", "credits" or "license" for more information. 5 >>> import yum 6 Traceback (most recent call last): 7 File "<stdin>", line 1, in ? 8 File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 54, in ? 9 import transactioninfo 10 File "/usr/lib/python2.4/site-packages/yum/transactioninfo.py", line 31, in ? 11 from sqlitesack import YumAvailablePackageSqlite 12 File "/usr/lib/python2.4/site-packages/yum/sqlitesack.py", line 26, in ? 13 import yumRepo 14 File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 32, in ? 15 import sqlitecachec 16 File "/usr/lib64/python2.4/site-packages/sqlitecachec.py", line 19, in ? 17 import _sqlitecache 18 ImportError: libxml2.so.2: cannot open shared object file: No such file or directory 19 >>>
提示缺少libxml2.so.2，安裝一下試試
rpm -ivh http://mirrors.163.com/centos/5/os/x86_64/CentOS/libxml2-2.6.26-2.1.2.8.x86_64.rpm
再次測試運行下yum命令，結果正常了，大喜
1 [root@localhost ~]# yum 2 Loaded plugins: fastestmirror 3 You need to give some command 4 usage: yum [options] COMMAND 5 6 List of Commands: 7 8 check-update Check for available package updates 9 clean Remove cached data 10 deplist List a package's dependencies 11 downgrade downgrade a package 12 erase Remove a package or packages from your system 13 groupinfo Display details about a package group 14 groupinstall Install the packages in a group on your system 15 grouplist List available package groups 16 groupremove Remove the packages in a group from your system 17 help Display a helpful usage message 18 info Display details about a package or group of packages 19 install Install a package or packages on your system 20 list List a package or groups of packages 21 localinstall Install a local RPM 22 makecache Generate the metadata cache 23 provides Find what package provides the given value 24 reinstall reinstall a package 25 repolist Display the configured software repositories 26 resolvedep Determine which package provides the given dependency 27 search Search package details for the given string 28 shell Run an interactive yum shell 29 update Update a package or packages on your system 30 upgrade Update packages taking obsoletes into account 31 32 33 options: 34 -h, --help show this help message and exit 35 -t, --tolerant be tolerant of errors 36 -C run entirely from cache, don't update cache 37 -c [config file] config file location 38 -R [minutes] maximum command wait time 39 -d [debug level] debugging output level 40 --showduplicates show duplicates, in repos, in list/search commands 41 -e [error level] error output level 42 -q, --quiet quiet operation 43 -v, --verbose verbose operation 44 -y answer yes for all questions 45 --version show Yum version and exit 46 --installroot=[path] set install root 47 --enablerepo=[repo] enable one or more repositories (wildcards allowed) 48 --disablerepo=[repo] disable one or more repositories (wildcards allowed) 49 -x [package], --exclude=[package] 50 exclude package(s) by name or glob 51 --disableexcludes=[repo] 52 disable exclude from main, for a repo or for 53 everything 54 --obsoletes enable obsoletes processing during updates 55 --noplugins disable Yum plugins 56 --nogpgcheck disable gpg signature checking 57 --disableplugin=[plugin] 58 disable plugins by name 59 --enableplugin=[plugin] 60 enable plugins by name 61 --skip-broken skip packages with depsolving problems 62 --color=COLOR control whether color is used 63 64 Plugin Options:
最后，趕緊更新一下系統吧
1 yum update
好了 這樣yum問題就完全解決了！