一、升级步骤
如果是最小安装可能 没问题，首先备份数据（我的服务器是新装，故无需备份）
yum clean all
yum update glibc* yum* rpm* python*
yum update
reboot
查看升级结果
cat /etc/redhat-release
## Output ##
CentOS release 6.5 (Final)
二、安装遇到 的问题
我系统装的是服务器版本，不少服务包在。
1、执行yum update出现如下错误
Error: Package: matahari-host-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidclient.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidclient.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-service-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidcommon.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidcommon.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-agent-lib-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidclient.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidclient.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-network-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidcommon.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidcommon.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-host-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidcommon.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidcommon.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-sysconfig-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidclient.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidclient.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-sysconfig-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidcommon.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidcommon.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-service-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidclient.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidclient.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-agent-lib-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidcommon.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidcommon.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
Error: Package: matahari-network-0.4.4-11.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
Requires: libqpidclient.so.5()(64bit)
Removing: qpid-cpp-client-0.12-6.el6.x86_64 (@anaconda-CentOS-201112091719.x86_64/6.2)
libqpidclient.so.5()(64bit)
Updated By: qpid-cpp-client-0.14-22.el6_3.x86_64 (base)
Not found
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
解决办法
yum -y remove qpid-cpp-client
2、按安装步骤重新执行安装，又出现如下错误
[Errno 14] PYCURL ERROR 56 - "Failure when receiving data from the peer"
Trying other mirror.
(20/388): bind-libs-9.8.2-0.23.rc1.el6_5.1.x86_64.rpm | 879 kB 00:00
[Errno 14] PYCURL ERROR 56 - "Failure when receiving data from the peer"
解决办法
yum [Errno 256] No more mirrors to try 解决方法
输入下面的命令
yum clean all
yum makecache
3、重装再执行一次yum update
没有可更新的包了，reboot系统。
