yum命令无法使用（yum命令不能用）

[root@contos7 ~]# sudo yum -y updateCould not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was14: curl#6 - "Could not resolve host: mirrorlist.centos.org; 未知的错误" One of the configured repositories failed (未知),and yum doesn't have enough cached data to continue. At this point the only safe thing yum can do is fail. There are a few ways to work "fix" this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working upstream. This is most often useful if you are using a newer distribution release than is supported by the repository (and the packages for the previous distribution release still work). 3. Run the command with the repository temporarily disabled yum --disablerepo=<repoid> ... 4. Disable the repository permanently, so yum won't use it by default. Yum will then just ignore the repository until you permanently enable it again or use --enablerepo for temporary usage: yum-config-manager --disable <repoid>or subscription-manager repos --disable=<repoid>5. Configure the failing repository to be skipped, if it is unavailable. Note that yum will try to contact the repo. when it runs most commands, so will have to try and fail each time (and thus. yum will be be much slower). If it is a very temporary problem though, this is often a nice compromise: yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true Cannot find a valid baseurl for repo: base/7/x86_64

ping www.baidu.com

cd wget/

rpm -ivh wget-1.14-18.el7_6.1.x86_64.rpm

强制删除已安装程序及其关联rpm -qa|grep python|xargs rpm -ev --allmatches --nodeps删除所有残余文件 xargs，允许你对输出执行其他某些命令whereis python |xargs rm -frv -rf验证删除，返回无结果whereis python

rpm -qa|grep yum|xargs rpm -ev --allmatches --nodepswhereis yum |xargs rm -frv -rf

[root@contos7 wget]# rpm -qa|grep python|xargs rpm -ev --allmatches --nodeps软件包准备中...python-firewall-0.5.3-5.el7.noarchpython-slip-dbus-0.4.0-4.el7.noarchpython-slip-0.4.0-4.el7.noarchpython-urlgrabber-3.10-9.el7.noarchpython-decorator-3.4.0-3.el7.noarchpython-pyudev-0.15-9.el7.noarchpython-iniparse-0.4-9.el7.noarchpython-configobj-4.7.2-7.el7.noarchpython-linux-procfs-0.4.9-4.el7.noarchpython-schedutils-0.4-6.el7.x86_64python-pycurl-7.19.0-19.el7.x86_64rpm-python-4.11.3-35.el7.x86_64python-perf-3.10.0-957.el7.x86_64newt-python-0.52.15-4.el7.x86_64libselinux-python-2.5-14.1.el7.x86_64dbus-python-1.1.1-9.el7.x86_64python-gobject-base-3.22.0-1.el7_4.1.x86_64python-2.7.5-76.el7.x86_64python-libs-2.7.5-76.el7.x86_64[root@contos7 wget]# whereis python |xargs rm -frv -rf已删除"/usr/lib/python2.7/site-packages/rpmUtils/__init__.py"已删除"/usr/lib/python2.7/site-packages/rpmUtils/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/rpmUtils/arch.py"已删除"/usr/lib/python2.7/site-packages/rpmUtils/arch.pyc"已删除"/usr/lib/python2.7/site-packages/rpmUtils/miscutils.py"已删除"/usr/lib/python2.7/site-packages/rpmUtils/miscutils.pyc"已删除"/usr/lib/python2.7/site-packages/rpmUtils/oldUtils.py"已删除"/usr/lib/python2.7/site-packages/rpmUtils/oldUtils.pyc"已删除"/usr/lib/python2.7/site-packages/rpmUtils/transaction.py"已删除"/usr/lib/python2.7/site-packages/rpmUtils/transaction.pyc"已删除"/usr/lib/python2.7/site-packages/rpmUtils/updates.py"已删除"/usr/lib/python2.7/site-packages/rpmUtils/updates.pyc"已删除目录："/usr/lib/python2.7/site-packages/rpmUtils"已删除"/usr/lib/python2.7/site-packages/yum/Errors.py"已删除"/usr/lib/python2.7/site-packages/yum/Errors.pyc"已删除"/usr/lib/python2.7/site-packages/yum/__init__.py"已删除"/usr/lib/python2.7/site-packages/yum/transactioninfo.py"已删除"/usr/lib/python2.7/site-packages/yum/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/yum/sqlutils.pyc"已删除"/usr/lib/python2.7/site-packages/yum/callbacks.py"已删除"/usr/lib/python2.7/site-packages/yum/transactioninfo.pyc"已删除"/usr/lib/python2.7/site-packages/yum/callbacks.pyc"已删除"/usr/lib/python2.7/site-packages/yum/comps.py"已删除"/usr/lib/python2.7/site-packages/yum/comps.pyc"已删除"/usr/lib/python2.7/site-packages/yum/config.py"已删除"/usr/lib/python2.7/site-packages/yum/config.pyc"已删除"/usr/lib/python2.7/site-packages/yum/update_md.py"已删除"/usr/lib/python2.7/site-packages/yum/constants.py"已删除"/usr/lib/python2.7/site-packages/yum/constants.pyc"已删除"/usr/lib/python2.7/site-packages/yum/depsolve.py"已删除"/usr/lib/python2.7/site-packages/yum/depsolve.pyc"已删除"/usr/lib/python2.7/site-packages/yum/drpm.py"已删除"/usr/lib/python2.7/site-packages/yum/drpm.pyc"已删除"/usr/lib/python2.7/site-packages/yum/failover.py"已删除"/usr/lib/python2.7/site-packages/yum/failover.pyc"已删除"/usr/lib/python2.7/site-packages/yum/fssnapshots.py"已删除"/usr/lib/python2.7/site-packages/yum/fssnapshots.pyc"已删除"/usr/lib/python2.7/site-packages/yum/history.py"已删除"/usr/lib/python2.7/site-packages/yum/history.pyc"已删除"/usr/lib/python2.7/site-packages/yum/i18n.py"已删除"/usr/lib/python2.7/site-packages/yum/i18n.pyc"已删除"/usr/lib/python2.7/site-packages/yum/igroups.py"已删除"/usr/lib/python2.7/site-packages/yum/igroups.pyc"已删除"/usr/lib/python2.7/site-packages/yum/logginglevels.py"已删除"/usr/lib/python2.7/site-packages/yum/logginglevels.pyc"已删除"/usr/lib/python2.7/site-packages/yum/mdparser.py"已删除"/usr/lib/python2.7/site-packages/yum/mdparser.pyc"已删除"/usr/lib/python2.7/site-packages/yum/metalink.py"已删除"/usr/lib/python2.7/site-packages/yum/metalink.pyc"已删除"/usr/lib/python2.7/site-packages/yum/misc.py"已删除"/usr/lib/python2.7/site-packages/yum/misc.pyc"已删除"/usr/lib/python2.7/site-packages/yum/packageSack.py"已删除"/usr/lib/python2.7/site-packages/yum/packageSack.pyc"已删除"/usr/lib/python2.7/site-packages/yum/packages.py"已删除"/usr/lib/python2.7/site-packages/yum/packages.pyc"已删除"/usr/lib/python2.7/site-packages/yum/parser.py"已删除"/usr/lib/python2.7/site-packages/yum/parser.pyc"已删除"/usr/lib/python2.7/site-packages/yum/pgpmsg.py"已删除"/usr/lib/python2.7/site-packages/yum/pgpmsg.pyc"已删除"/usr/lib/python2.7/site-packages/yum/pkgtag_db.py"已删除"/usr/lib/python2.7/site-packages/yum/pkgtag_db.pyc"已删除"/usr/lib/python2.7/site-packages/yum/plugins.py"已删除"/usr/lib/python2.7/site-packages/yum/plugins.pyc"已删除"/usr/lib/python2.7/site-packages/yum/repoMDObject.py"已删除"/usr/lib/python2.7/site-packages/yum/repoMDObject.pyc"已删除"/usr/lib/python2.7/site-packages/yum/repos.py"已删除"/usr/lib/python2.7/site-packages/yum/repos.pyc"已删除"/usr/lib/python2.7/site-packages/yum/rpmsack.py"已删除"/usr/lib/python2.7/site-packages/yum/rpmsack.pyc"已删除"/usr/lib/python2.7/site-packages/yum/rpmtrans.py"已删除"/usr/lib/python2.7/site-packages/yum/rpmtrans.pyc"已删除"/usr/lib/python2.7/site-packages/yum/sqlitesack.py"已删除"/usr/lib/python2.7/site-packages/yum/sqlitesack.pyc"已删除"/usr/lib/python2.7/site-packages/yum/sqlutils.py"已删除"/usr/lib/python2.7/site-packages/yum/update_md.pyc"已删除"/usr/lib/python2.7/site-packages/yum/updateinfo.py"已删除"/usr/lib/python2.7/site-packages/yum/updateinfo.pyc"已删除"/usr/lib/python2.7/site-packages/yum/yumRepo.py"已删除"/usr/lib/python2.7/site-packages/yum/yumRepo.pyc"已删除目录："/usr/lib/python2.7/site-packages/yum"已删除"/usr/lib/python2.7/site-packages/tuned/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/admin/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/admin/admin.py"已删除"/usr/lib/python2.7/site-packages/tuned/admin/dbus_controller.py"已删除"/usr/lib/python2.7/site-packages/tuned/admin/exceptions.py"已删除"/usr/lib/python2.7/site-packages/tuned/admin/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/admin/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/admin/admin.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/admin/admin.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/admin/dbus_controller.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/admin/dbus_controller.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/admin/exceptions.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/admin/exceptions.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/admin"已删除"/usr/lib/python2.7/site-packages/tuned/consts.py"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/application.py"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/controller.py"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/daemon.py"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/application.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/application.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/controller.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/controller.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/daemon.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/daemon/daemon.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/daemon"已删除"/usr/lib/python2.7/site-packages/tuned/exceptions.py"已删除"/usr/lib/python2.7/site-packages/tuned/exports/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/exports/controller.py"已删除"/usr/lib/python2.7/site-packages/tuned/exports/dbus_exporter.py"已删除"/usr/lib/python2.7/site-packages/tuned/exports/interfaces.py"已删除"/usr/lib/python2.7/site-packages/tuned/exports/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/exports/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/exports/controller.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/exports/controller.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/exports/dbus_exporter.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/exports/dbus_exporter.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/exports/interfaces.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/exports/interfaces.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/exports"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/device_matcher.py"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/device_matcher_udev.py"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/inventory.py"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/device_matcher.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/device_matcher.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/device_matcher_udev.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/device_matcher_udev.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/inventory.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/hardware/inventory.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/hardware"已删除"/usr/lib/python2.7/site-packages/tuned/logs.py"已删除"/usr/lib/python2.7/site-packages/tuned/logs.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/logs.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/base.py"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/base.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/base.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_disk.py"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_load.py"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_net.py"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/repository.py"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/repository.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/repository.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_disk.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_disk.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_load.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_load.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_net.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/monitors/monitor_net.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/monitors"已删除"/usr/lib/python2.7/site-packages/tuned/patterns.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/base.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/decorators.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/exceptions.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/hotplug.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/factory.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/instance.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/factory.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/factory.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/instance.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/instance/instance.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/plugins/instance"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_audio.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_selinux.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_bootloader.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_cpu.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_cpu.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_cpu.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_eeepc_she.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_modules.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_mounts.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_net.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_scheduler.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_script.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_script.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_script.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_scsi_host.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_selinux.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_sysctl.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_sysfs.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_systemd.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_usb.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_video.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_vm.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/repository.py"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/repository.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/repository.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_mounts.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_scheduler.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/base.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/base.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_mounts.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_vm.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/decorators.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/decorators.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_net.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_vm.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/exceptions.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/exceptions.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_scsi_host.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/hotplug.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/hotplug.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_net.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_audio.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_audio.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_modules.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_scsi_host.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_bootloader.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_bootloader.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_scheduler.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_disk.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_selinux.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_eeepc_she.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_eeepc_she.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_modules.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_sysctl.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_sysctl.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_usb.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_sysfs.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_sysfs.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_systemd.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_systemd.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_video.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_usb.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/plugins/plugin_video.pyc"已删除目录："/usr/lib/python2.7/site-packages/tuned/plugins"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/__init__.py"已删除"/usr/lib/pyth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ges/tuned/profiles/loader.py"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/locator.py"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/merger.py"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/profile.py"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/unit.py"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/variables.py"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/exceptions.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/exceptions.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/factory.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/factory.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/loader.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/loader.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/locator.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/locator.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/merger.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/merger.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/profile.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/profile.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/unit.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/unit.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/variables.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/profiles/variables.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/profiles"已删除"/usr/lib/python2.7/site-packages/tuned/storage/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/storage/factory.py"已删除"/usr/lib/python2.7/site-packages/tuned/storage/interfaces.py"已删除"/usr/lib/python2.7/site-packages/tuned/storage/pickle_provider.py"已删除"/usr/lib/python2.7/site-packages/tuned/storage/storage.py"已删除"/usr/lib/python2.7/site-packages/tuned/storage/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/storage/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/storage/factory.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/storage/factory.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/storage/interfaces.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/storage/interfaces.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/storage/pickle_provider.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/storage/pickle_provider.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/storage/storage.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/storage/storage.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/storage"已删除"/usr/lib/python2.7/site-packages/tuned/units/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/units/manager.py"已删除"/usr/lib/python2.7/site-packages/tuned/units/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/units/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/units/manager.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/units/manager.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/units"已删除"/usr/lib/python2.7/site-packages/tuned/utils/__init__.py"已删除"/usr/lib/python2.7/site-packages/tuned/utils/commands.py"已删除"/usr/lib/python2.7/site-packages/tuned/utils/global_config.py"已删除"/usr/lib/python2.7/site-packages/tuned/utils/nettool.py"已删除"/usr/lib/python2.7/site-packages/tuned/utils/plugin_loader.py"已删除"/usr/lib/python2.7/site-packages/tuned/utils/plugin_loader.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/utils/plugin_loader.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/utils/polkit.py"已删除"/usr/lib/python2.7/site-packages/tuned/utils/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/utils/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/utils/commands.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/utils/commands.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/utils/global_config.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/utils/global_config.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/utils/nettool.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/utils/nettool.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/utils/polkit.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/utils/polkit.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned/utils"已删除"/usr/lib/python2.7/site-packages/tuned/version.py"已删除"/usr/lib/python2.7/site-packages/tuned/__init__.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/__init__.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/consts.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/consts.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/exceptions.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/exceptions.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/patterns.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/patterns.pyo"已删除"/usr/lib/python2.7/site-packages/tuned/version.pyc"已删除"/usr/lib/python2.7/site-packages/tuned/version.pyo"已删除目录："/usr/lib/python2.7/site-packages/tuned"已删除目录："/usr/lib/python2.7/site-packages"已删除目录："/usr/lib/python2.7"已删除"/usr/lib64/python2.7/site-packages/_sqlitecache.so"已删除"/usr/lib64/python2.7/site-packages/sqlitecachec.py"已删除"/usr/lib64/python2.7/site-packages/yum_metadata_parser-1.1.4-py2.7.egg-info"已删除"/usr/lib64/python2.7/site-packages/sqlitecachec.pyc"已删除"/usr/lib64/python2.7/site-packages/sqlitecachec.pyo"已删除"/usr/lib64/python2.7/site-packages/liblzma.py"已删除"/usr/lib64/python2.7/site-packages/lzma.so"已删除"/usr/lib64/python2.7/site-packages/pyliblzma-0.5.3-py2.7.egg-info/PKG-INFO"已删除"/usr/lib64/python2.7/site-packages/pyliblzma-0.5.3-py2.7.egg-info/SOURCES.txt"已删除"/usr/lib64/python2.7/site-packages/pyliblzma-0.5.3-py2.7.egg-info/dependency_links.txt"已删除"/usr/lib64/python2.7/site-packages/pyliblzma-0.5.3-py2.7.egg-info/top_level.txt"已删除目录："/usr/lib64/python2.7/site-packages/pyliblzma-0.5.3-py2.7.egg-info"已删除"/usr/lib64/python2.7/site-packages/liblzma.pyc"已删除"/usr/lib64/python2.7/site-packages/liblzma.pyo"已删除"/usr/lib64/python2.7/site-packages/pyxattr-0.5.1-py2.7.egg-info/PKG-INFO"已删除"/usr/lib64/python2.7/site-packages/pyxattr-0.5.1-py2.7.egg-info/SOURCES.txt"已删除"/usr/lib64/python2.7/site-packages/pyxattr-0.5.1-py2.7.egg-info/dependency_links.txt"已删除"/usr/lib64/python2.7/site-packages/pyxattr-0.5.1-py2.7.egg-info/top_level.txt"已删除目录："/usr/lib64/python2.7/site-packages/pyxattr-0.5.1-py2.7.egg-info"已删除"/usr/lib64/python2.7/site-packages/xattr.so"已删除"/usr/lib64/python2.7/site-packages/gpgme/__init__.py"已删除"/usr/lib64/python2.7/site-packages/gpgme/_gpgme.so"已删除"/usr/lib64/python2.7/site-packages/gpgme/editutil.py"已删除"/usr/lib64/python2.7/site-packages/gpgme/editutil.pyc"已删除"/usr/lib64/python2.7/site-packages/gpgme/editutil.pyo"已删除"/usr/lib64/python2.7/site-packages/gpgme/__init__.pyc"已删除"/usr/lib64/python2.7/site-packages/gpgme/__init__.pyo"已删除目录："/usr/lib64/python2.7/site-packages/gpgme"已删除"/usr/lib64/python2.7/site-packages/pygpgme-0.3-py2.7.egg-info"已删除"/usr/lib64/python2.7/site-packages/acutilmodule.so"已删除目录："/usr/lib64/python2.7/site-packages"已删除目录："/usr/lib64/python2.7"[root@contos7 wget]# whereis pythonpython:[root@contos7 wget]# rpm -qa|grep yum|xargs rpm -ev --allmatches --nodeps软件包准备中...yum-3.4.3-161.el7.centos.noarch警告：文件 /usr/lib/python2.7/site-packages/yum/yumRepo.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/yumRepo.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/updateinfo.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/updateinfo.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/update_md.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/update_md.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/transactioninfo.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/transactioninfo.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/sqlutils.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/sqlutils.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/sqlitesack.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/sqlitesack.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/rpmtrans.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/rpmtrans.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/rpmsack.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/rpmsack.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/repos.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/repos.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/repoMDObject.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/repoMDObject.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/plugins.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/plugins.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/pkgtag_db.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/pkgtag_db.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/pgpmsg.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/pgpmsg.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/parser.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/parser.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/packages.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/packages.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/packageSack.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/packageSack.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/misc.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/misc.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/metalink.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/metalink.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/mdparser.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/mdparser.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/logginglevels.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/logginglevels.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/igroups.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/igroups.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/i18n.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/i18n.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/history.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/history.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/fssnapshots.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/fssnapshots.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/failover.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/failover.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/drpm.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/drpm.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/depsolve.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/depsolve.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/constants.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/constants.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/config.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/config.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/comps.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/comps.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/callbacks.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/callbacks.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/__init__.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/__init__.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/Errors.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum/Errors.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/yum: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/updates.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/updates.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/transaction.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/transaction.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/oldUtils.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/oldUtils.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/miscutils.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/miscutils.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/arch.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/arch.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/__init__.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils/__init__.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib/python2.7/site-packages/rpmUtils: 移除失败: 没有那个文件或目录yum-metadata-parser-1.1.4-10.el7.x86_64警告：文件 /usr/lib64/python2.7/site-packages/yum_metadata_parser-1.1.4-py2.7.egg-info: 移除失败: 没有那个文件或目录警告：文件 /usr/lib64/python2.7/site-packages/sqlitecachec.pyo: 移除失败: 没有那个文件或目录警告：文件 /usr/lib64/python2.7/site-packages/sqlitecachec.pyc: 移除失败: 没有那个文件或目录警告：文件 /usr/lib64/python2.7/site-packages/sqlitecachec.py: 移除失败: 没有那个文件或目录警告：文件 /usr/lib64/python2.7/site-packages/_sqlitecache.so: 移除失败: 没有那个文件或目录[root@contos7 wget]# whereis yum |xargs rm -frv -rf已删除"/etc/yum/vars/infra"已删除"/etc/yum/vars/contentdir"已删除目录："/etc/yum/vars"已删除"/etc/yum/protected.d/systemd.conf"已删除目录："/etc/yum/protected.d"已删除"/etc/yum/pluginconf.d/langpacks.conf"已删除目录："/etc/yum/pluginconf.d"已删除目录："/etc/yum"[root@contos7 wget]#

wget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/lvm2-python-libs-2.02.187-6.el7.x86_64.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/libxml2-python-2.9.1-6.el7.5.x86_64.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages//python-libs-2.7.5-89.el7.x86_64.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-ipaddress-1.0.16-2.el7.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-backports-1.0-8.el7.x86_64.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-backports-ssl_match_hostname-3.5.0.1-1.el7.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-2.7.5-89.el7.x86_64.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-iniparse-0.4-9.el7.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-pycurl-7.19.0-19.el7.x86_64.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-urlgrabber-3.10-10.el7.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-setuptools-0.9.8-7.el7.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-kitchen-1.1.1-5.el7.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/python-chardet-2.2.1-3.el7.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/rpm-python-4.11.3-45.el7.x86_64.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-utils-1.1.31-54.el7_8.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-3.4.3-168.el7.centos.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-plugin-aliases-1.1.31-54.el7_8.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-plugin-protectbase-1.1.31-54.el7_8.noarch.rpmwget https://mirrors.aliyun.com/centos/7.9.2009/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm

rpm -ivh --nodeps --force *.rpm

rm -rf /etc/yum/.repos.d/*

http://mirrors.aliyun.com/repo/Centos-7.repo

cd /etc/yum.repos.d/

rm -r *

 清除缓存yum clean all 生成缓存yum makecache

sudo yum -y update