yum出问题了，说什么 No module named yum ，谁能帮帮忙，具体的进来look

下面是具体的所有的错误信息，请高人指点，希望能药到病除，谢啦！！！＃yum -v
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:   No module named yumPlease install a package which provides this module, or
verify that the module is installed correctly.It's possible that the above module doesn't match the
current version of Python, which is:
II.IV.4 (#1, Dec 19 2006, 11:38:39)
[GCC IV.I.1 20061011 (Red Hat IV.I.1-30)]If you cannot solve this problem yourself, please go to
the yum faq at:
  http://wiki.linux.duke.edu/YumFaq
  
错误代码到此为止.运行 man yum 后可以显示帮助信息.使用 rpm -q yum 情况如下：[root@XFun dl]# rpm -q yum
yum-III.0.1-II.fc6
[root@XFun dl]# 欢迎有类似经验或者是快活林网友们能慷慨解囊相助，小生不胜感激.-----
写得很清楚么……
貌似是没有对应于Python的yum模块~换成apt吧~-----
楼上说的我不明白 ，哪位贤人还有招？

关于开机问题，大侠们请进

开机后出现黑色屏幕，里面全是英文，最下面有一行是F1 TO CONTINUE,DEL TO SETUP。按F1或SETUP后开始进入系统，去到欢迎你之前的蓝色屏幕那里定住了，一直都不动，重启后，也是这样的情况，有时要重启很多次后才能正常启动。请问各位这是什么问题？和硬件有关吗？