yum 安裝，可以list，但是無法安裝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
解決方法 ，在下面兩個目錄開頭，把python改為python2
/usr/bin/yum
/usr/libexec/urlgrabber-ext-down
問題原因：
這個是因為系統之前安裝python3，原來版本是2.7，升級python3建立軟連接時把python改為了python2，yum 調用python找不到2.7的版本了