yum 不能使用，提示以下错.误提示:.
#yum update
Loaded plugin.s: f.astestmirror 外汇
Loading m.irror speeds .from cached hostfile电脑
Traceback (most recent .call la.st):电影
.File "/usr/.bin/yum", line 29, in ?( 游戏 )
yummain.user_ma.in(sys.argv[1:], exit._code=True).
File "/usr./share/yum-cli/yummain.py", line 309, in .user_main健康
errcode =. main(args) 婚庆
. File "/usr/share/yum-cli/yummain.py", line 17.8, in main 鲜花
result, resultm.sgs = base..doCommands()虚拟主机
. File "/usr/share/yum.-cli/cli.py", line 345, in doCommands--- 印刷
self._getTs(ne.e.dTsRemove).
.File "/usr/lib/python2.4/site-.packages/yum/depsolve.py", line 101, in _g.etTs 美容
se.lf._getTsInfo(remove_only)..
Fil.e "/usr/lib/python2.4/site-packag.es/yum/depsolve.py", line 112, in. _getTsInfo 健康
pkg.Sack = self.pkgSac.k
File "/usr/lib/python2.4/site-packages./yum/__init__.py", line 661,. in <lambda.> 杀毒
pkg.Sack = prop.erty(fget=lambda self: self._getSacks(),域名
File "/usr/lib/pyth.on2.4/site-packa.ges/yum/__init.__.py", line 501, in _getSacks 女人
self.re.pos.p.opulateSack(which=repos) 外汇
File "/usr/lib/python2.4/site-packages/yum/repos..py", line 260, .in populat.eSack虚拟主机
.. sack.populate(repo, mdtype, callback, cacheonly) 电子
File "/usr/li.b/python2.4/site-packages/yum/yumRepo..py", l.ine 190, in populate 婚庆
dobj = repo_cache._function(xml, .csum)电影
File "/usr/lib/python2..4/site-packag.es/sqlitecachec.py", line 42, in. getPrimary服务器
self.re.poid))服务器
TypeError: Parsing primary.xml error: Start .tag expected,. '<' not found域名
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r.pm所用的数据库删除 ;这一步最好把_db.*备份一下 投资
# rpm --rebui.lddb .重建该数据库(广告)
# yum clean al.l 清除YUM缓存.( 游戏 )
请问还有可能是哪里问题？
