请问使用yum出现这个问题怎么办？

zelatanibra

使用的是REDHAT RHEL 5.4，
输入yum -install gcc后：
[root@localhost Server]# yum install gcc
Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Nothing to do
可是：
[root@localhost Server]# rpm -ivh yum-3.2.22-20.el5.noarch.rpm
warning: yum-3.2.22-20.el5.noarch.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing...                ########################################### [100%]
        package yum-3.2.22-20.el5.noarch is already installed
证明我已经安装了yum了啊？怎么不能使用呢？

vermouth

rpm -ql yum 看看命令。

dooros

源没设置好吧

zelatanibra

[root@nimbus-server ~]# rpm -ql yum
/etc/logrotate.d/yum
/etc/yum
/etc/yum.conf
/etc/yum.repos.d
/etc/yum/pluginconf.d
/usr/bin/yum
/usr/lib/python2.4/site-packages/rpmUtils
/usr/lib/python2.4/site-packages/rpmUtils/__init__.py
/usr/lib/python2.4/site-packages/rpmUtils/__init__.pyc
/usr/lib/python2.4/site-packages/rpmUtils/__init__.pyo
/usr/lib/python2.4/site-packages/rpmUtils/arch.py
/usr/lib/python2.4/site-packages/rpmUtils/arch.pyc
/usr/lib/python2.4/site-packages/rpmUtils/arch.pyo
/usr/lib/python2.4/site-packages/rpmUtils/miscutils.py
/usr/lib/python2.4/site-packages/rpmUtils/miscutils.pyc
/usr/lib/python2.4/site-packages/rpmUtils/miscutils.pyo
/usr/lib/python2.4/site-packages/rpmUtils/oldUtils.py
/usr/lib/python2.4/site-packages/rpmUtils/oldUtils.pyc
/usr/lib/python2.4/site-packages/rpmUtils/oldUtils.pyo
/usr/lib/python2.4/site-packages/rpmUtils/transaction.py
/usr/lib/python2.4/site-packages/rpmUtils/transaction.pyc
/usr/lib/python2.4/site-packages/rpmUtils/transaction.pyo
/usr/lib/python2.4/site-packages/rpmUtils/updates.py
/usr/lib/python2.4/site-packages/rpmUtils/updates.pyc
/usr/lib/python2.4/site-packages/rpmUtils/updates.pyo
/usr/lib/python2.4/site-packages/yum
/usr/lib/python2.4/site-packages/yum/Errors.py
/usr/lib/python2.4/site-packages/yum/Errors.pyc
/usr/lib/python2.4/site-packages/yum/Errors.pyo
/usr/lib/python2.4/site-packages/yum/__init__.py
/usr/lib/python2.4/site-packages/yum/__init__.pyc
/usr/lib/python2.4/site-packages/yum/__init__.pyo
/usr/lib/python2.4/site-packages/yum/callbacks.py
/usr/lib/python2.4/site-packages/yum/callbacks.pyc
/usr/lib/python2.4/site-packages/yum/callbacks.pyo
/usr/lib/python2.4/site-packages/yum/comps.py
/usr/lib/python2.4/site-packages/yum/comps.pyc
/usr/lib/python2.4/site-packages/yum/comps.pyo
/usr/lib/python2.4/site-packages/yum/config.py
/usr/lib/python2.4/site-packages/yum/config.pyc
/usr/lib/python2.4/site-packages/yum/config.pyo
/usr/lib/python2.4/site-packages/yum/constants.py
/usr/lib/python2.4/site-packages/yum/constants.pyc
/usr/lib/python2.4/site-packages/yum/constants.pyo
/usr/lib/python2.4/site-packages/yum/depsolve.py
/usr/lib/python2.4/site-packages/yum/depsolve.pyc
/usr/lib/python2.4/site-packages/yum/depsolve.pyo
/usr/lib/python2.4/site-packages/yum/failover.py
/usr/lib/python2.4/site-packages/yum/failover.pyc
/usr/lib/python2.4/site-packages/yum/failover.pyo
/usr/lib/python2.4/site-packages/yum/i18n.py
/usr/lib/python2.4/site-packages/yum/i18n.pyc
/usr/lib/python2.4/site-packages/yum/i18n.pyo
/usr/lib/python2.4/site-packages/yum/logginglevels.py
/usr/lib/python2.4/site-packages/yum/logginglevels.pyc
/usr/lib/python2.4/site-packages/yum/logginglevels.pyo
/usr/lib/python2.4/site-packages/yum/mdparser.py
/usr/lib/python2.4/site-packages/yum/mdparser.pyc
/usr/lib/python2.4/site-packages/yum/mdparser.pyo
/usr/lib/python2.4/site-packages/yum/metalink.py
/usr/lib/python2.4/site-packages/yum/metalink.pyc
/usr/lib/python2.4/site-packages/yum/metalink.pyo
/usr/lib/python2.4/site-packages/yum/misc.py
/usr/lib/python2.4/site-packages/yum/misc.pyc
/usr/lib/python2.4/site-packages/yum/misc.pyo
/usr/lib/python2.4/site-packages/yum/packageSack.py
/usr/lib/python2.4/site-packages/yum/packageSack.pyc
/usr/lib/python2.4/site-packages/yum/packageSack.pyo
/usr/lib/python2.4/site-packages/yum/packages.py
/usr/lib/python2.4/site-packages/yum/packages.pyc
/usr/lib/python2.4/site-packages/yum/packages.pyo
/usr/lib/python2.4/site-packages/yum/parser.py
/usr/lib/python2.4/site-packages/yum/parser.pyc
/usr/lib/python2.4/site-packages/yum/parser.pyo
/usr/lib/python2.4/site-packages/yum/pgpmsg.py
/usr/lib/python2.4/site-packages/yum/pgpmsg.pyc
/usr/lib/python2.4/site-packages/yum/pgpmsg.pyo
/usr/lib/python2.4/site-packages/yum/plugins.py
/usr/lib/python2.4/site-packages/yum/plugins.pyc
/usr/lib/python2.4/site-packages/yum/plugins.pyo
/usr/lib/python2.4/site-packages/yum/repoMDObject.py
/usr/lib/python2.4/site-packages/yum/repoMDObject.pyc
/usr/lib/python2.4/site-packages/yum/repoMDObject.pyo
/usr/lib/python2.4/site-packages/yum/repos.py
/usr/lib/python2.4/site-packages/yum/repos.pyc
/usr/lib/python2.4/site-packages/yum/repos.pyo
/usr/lib/python2.4/site-packages/yum/rpmsack.py
/usr/lib/python2.4/site-packages/yum/rpmsack.pyc
/usr/lib/python2.4/site-packages/yum/rpmsack.pyo
/usr/lib/python2.4/site-packages/yum/rpmtrans.py
/usr/lib/python2.4/site-packages/yum/rpmtrans.pyc
/usr/lib/python2.4/site-packages/yum/rpmtrans.pyo
/usr/lib/python2.4/site-packages/yum/sqlitesack.py
/usr/lib/python2.4/site-packages/yum/sqlitesack.pyc
/usr/lib/python2.4/site-packages/yum/sqlitesack.pyo
/usr/lib/python2.4/site-packages/yum/sqlutils.py
/usr/lib/python2.4/site-packages/yum/sqlutils.pyc
/usr/lib/python2.4/site-packages/yum/sqlutils.pyo
/usr/lib/python2.4/site-packages/yum/transactioninfo.py
/usr/lib/python2.4/site-packages/yum/transactioninfo.pyc
/usr/lib/python2.4/site-packages/yum/transactioninfo.pyo
/usr/lib/python2.4/site-packages/yum/update_md.py
/usr/lib/python2.4/site-packages/yum/update_md.pyc
/usr/lib/python2.4/site-packages/yum/update_md.pyo
/usr/lib/python2.4/site-packages/yum/yumRepo.py
/usr/lib/python2.4/site-packages/yum/yumRepo.pyc
/usr/lib/python2.4/site-packages/yum/yumRepo.pyo
/usr/lib/yum-plugins
/usr/share/doc/yum-3.2.22
/usr/share/doc/yum-3.2.22/AUTHORS
/usr/share/doc/yum-3.2.22/COPYING
/usr/share/doc/yum-3.2.22/ChangeLog
/usr/share/doc/yum-3.2.22/INSTALL
/usr/share/doc/yum-3.2.22/PLUGINS
/usr/share/doc/yum-3.2.22/README
/usr/share/doc/yum-3.2.22/TODO
/usr/share/locale/ca/LC_MESSAGES/yum.mo
/usr/share/locale/da/LC_MESSAGES/yum.mo
/usr/share/locale/de/LC_MESSAGES/yum.mo
/usr/share/locale/fr/LC_MESSAGES/yum.mo
/usr/share/locale/it/LC_MESSAGES/yum.mo
/usr/share/locale/ms/LC_MESSAGES/yum.mo
/usr/share/locale/nb/LC_MESSAGES/yum.mo
/usr/share/locale/pl/LC_MESSAGES/yum.mo
/usr/share/locale/pt/LC_MESSAGES/yum.mo
/usr/share/locale/pt_BR/LC_MESSAGES/yum.mo
/usr/share/locale/ru/LC_MESSAGES/yum.mo
/usr/share/locale/sr/LC_MESSAGES/yum.mo
/usr/share/locale/sr@latin/LC_MESSAGES/yum.mo
/usr/share/locale/sv/LC_MESSAGES/yum.mo
/usr/share/locale/zh_CN/LC_MESSAGES/yum.mo
/usr/share/man/man5/yum.conf.5.gz
/usr/share/man/man8/yum-shell.8.gz
/usr/share/man/man8/yum.8.gz
/usr/share/yum-cli
/usr/share/yum-cli/callback.py
/usr/share/yum-cli/callback.pyc
/usr/share/yum-cli/callback.pyo
/usr/share/yum-cli/cli.py
/usr/share/yum-cli/cli.pyc
/usr/share/yum-cli/cli.pyo
/usr/share/yum-cli/output.py
/usr/share/yum-cli/output.pyc
/usr/share/yum-cli/output.pyo
/usr/share/yum-cli/shell.py
/usr/share/yum-cli/shell.pyc
/usr/share/yum-cli/shell.pyo
/usr/share/yum-cli/utils.py
/usr/share/yum-cli/utils.pyc
/usr/share/yum-cli/utils.pyo
/usr/share/yum-cli/yumcommands.py
/usr/share/yum-cli/yumcommands.pyc
/usr/share/yum-cli/yumcommands.pyo
/usr/share/yum-cli/yummain.py
/usr/share/yum-cli/yummain.pyc
/usr/share/yum-cli/yummain.pyo
/var/cache/yum
/var/lib/yum
[root@nimbus-server ~]# yum install gcc
Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Nothing to do

nomal

楼主安装LINUX的时候没有输入序列号，所以不能YUM了。

w80286

This system is not registered with RHN.
该系统没有在Red hat公司注册，所以不能使用在线更新功能，LZ可以自己用光盘搭建一个本地源。

linux初学三月

yum Update

xiongmao851

安装createrepo包、用createrepo  （rpm包存放目录） 命令生成一个软件库
再配置一个新的repo文件/etc/yum.repos/
比如建一个redhat的软件库
vi /etc/yum.repos/redhat.repo
[redhat]
name=redhat
baseurl=file:///（此处是你rpm包的存放地点）
enabled=1

完了以后再用yum安装包

chenyx

架设本地源,或者用Centos的源
需要修改/etc/yum.repos.d/下的repo文件.

牛百叶子

我也不知道  来看下的