yum 不能使用

xiadao_81

yum 不能使用，提示以下错误提示:
#yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 309, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 178, in main
    result, resultmsgs = base.doCommands()
  File "/usr/share/yum-cli/cli.py", line 345, in doCommands
    self._getTs(needTsRemove)
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 101, in _getTs
    self._getTsInfo(remove_only)
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 112, in _getTsInfo
    pkgSack = self.pkgSack
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 661, in <lambda>
    pkgSack = property(fget=lambda self: self._getSacks(),
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 501, in _getSacks
    self.repos.populateSack(which=repos)
  File "/usr/lib/python2.4/site-packages/yum/repos.py", line 260, in populateSack
    sack.populate(repo, mdtype, callback, cacheonly)
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 190, in populate
    dobj = repo_cache_function(xml, csum)
  File "/usr/lib/python2.4/site-packages/sqlitecachec.py", line 42, in getPrimary
    self.repoid))
TypeError: Parsing primary.xml error: Start tag expected, '<' not found

网上看了下说是因为RPM数据库出现损坏导致的，它导致所有的软件的升级、安装甚至是删除都会出现问题，终端出现乱码，YUMEX也用不成，RPM命令也用不成。按以下方法操作后，问题依旧：
$ su            切换到root权限
# rm -f /var/lib/rpm/__db.*    将rpm所用的数据库删除    ;这一步最好把_db.*备份一下
# rpm --rebuilddb     重建该数据库
# yum clean all     清除YUM缓存

请问还有可能是哪里问题？

vermouth

yum 出问题会导致 rpm 不能用？

yumanifold

看看你的python吧。。。yum是用python写的。。。。如果你改变了python的环境，yum会出错。。。


这个问题我之前遇到过

xiadao_81

yum源配置和python环境我都没动的，都不知是怎么回事，晕

xiadao_81

无奈，最后是删除然后重新安装的yum包