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有时用yum升级一些文件时,会出现以下情况: another app is currently holding the yum lock;waiting for it to exit...可以通过强制关掉yum进程:rm -f /var/run/yum.pid /sbin/service yum-updatesd restart不用重启,及时生效复制代码然后就可以使用yum了。