yum 安装，可以list，但是无法安装Error downloading packages: 。。。。 No such file or directory
# yum install nano Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile Resolving Dependencies --> Running transaction check ---> Package nano.x86_64 0:2.3.1-10.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ===================================================================================================================================================== Package Arch Version Repository Size ===================================================================================================================================================== Installing: nano x86_64 2.3.1-10.el7 os 440 k Transaction Summary ===================================================================================================================================================== Install 1 Package Total download size: 440 k Installed size: 1.6 M Is this ok [y/d/N]: y Downloading packages: Error downloading packages: nano-2.3.1-10.el7.x86_64: [Errno 5] [Errno 2] No such file or directory
解决方法 ，在下面两个目录开头，把python改为python2
/usr/bin/yum
/usr/libexec/urlgrabber-ext-down
问题原因：
这个是因为系统之前安装python3，原来版本是2.7，升级python3建立软连接时把python改为了python2，yum 调用python找不到2.7的版本了