小林博客报错信息
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'yum clean packages'.
Error: Transaction test error:
file /usr/share/doc/ipmitool/ChangeLog from install of ipmitool-1.8.19-1.p01.ky10.x86_64 conflicts with file from package ipmitool-help-1.8.18-19.p02.ky10.noarch
file /usr/share/doc/ipmitool/README from install of ipmitool-1.8.19-1.p01.ky10.x86_64 conflicts with file from package ipmitool-help-1.8.18-19.p02.ky10.noarch
file /usr/share/man/man1/ipmitool.1.gz from install of ipmitool-1.8.19-1.p01.ky10.x86_64 conflicts with file from package ipmitool-help-1.8.18-19.p02.ky10.noarch
注意；执行命令 yum -y update 用户升级所有软件，在升级过程中提示如上错误信息。
解决思路
根据所提供的错误信息，问题在于 ipmitool-1.8.19-1.p01.ky10.x86_64 与 ipmitool-help-1.8.18-19.p02.ky10.noarch 间存在文件冲突。以下是解决此问题步骤，首先移除冲突的包：
yum -y remove ipmitool-help-1.8.18-19.p02.ky10.noarch
清理缓存，确保后续操作不会受到旧缓存的影响：
yum clean all
在移除冲突包并清理缓存后，重新安装 ipmitool 软件包：
yum -y install ipmitool-1.8.19-1.p01.ky10.x86_64
最后，更新系统中所有包，以确保所有的依赖关系都已解决：
yum -y update
