报错内容

Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in <module>
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 298, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 115, in main
    base.getOptionsConfig(args)
  File "/usr/share/yum-cli/cli.py", line 229, in getOptionsConfig
    self.conf
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 911, in <lambda>
    conf = property(fget=lambda self: self._getConfig(),
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 300, in _getConfig
    startupconf = config.readStartupConfig(fn, root)
  File "/usr/lib/python2.6/site-packages/yum/config.py", line 896, in readStartupConfig
    startupconf.releasever = _getsysver(startupconf.installroot, startupconf.distroverpkg)
  File "/usr/lib/python2.6/site-packages/yum/config.py", line 1047, in _getsysver
    hdr = idx.next()
StopIteration

报错Traceback提示为，config.py中的_getsysver方法出现了问题

解决方法为

rpm --rebuilddb

参考：Yum completely broken after deleting something