所以我安装了OMSA(找到这个链接http://en.community.dell.com/techcenter/systems-management/f/4469/t/19490204)

wget -q -O - http://linux.dell.com/repo/hardware/latest/bootstrap.cgi | bash
yum install srvadmin-all

上面没有问题.

问题：

root@server [~]# racadm config -g cfgUserAdmin -o cfgUserAdminPassword -i 2 "newpassword"
-bash: racadm: command not found

root@server [~]# rpm -q -a --requires srvadmin-all                                        
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
srvadmin-base = 8.1.0
srvadmin-idrac = 8.1.0
srvadmin-oslog = 8.1.0
srvadmin-rac4 = 8.1.0
srvadmin-rac5 = 8.1.0
srvadmin-server-cli = 8.1.0
srvadmin-server-snmp = 8.1.0
srvadmin-standardAgent = 8.1.0
srvadmin-storageservices = 8.1.0
srvadmin-webserver = 8.1.0

编辑：必须在目录路径中像这样运行“sh”.新错误.

root@server [/opt/dell/srvadmin/sbin]# sh racadm config -g cfgUserAdmin -o cfgUserAdminPassword -i 2 "newpassword"
ERROR: Failed to set the object value. 
Possible reason may be that Local Configuration using RACADM is disabled.
===============================================================================
IMPORTANT NOTE!
The RAC is unable to communicate with the BMC. This condition may
occur because of (1) no BMC is present,(2) missing or disfunctional
IPMI-related software components. Many RAC features depend on BMC
connectivity in order to work properly,and you may see failures
as a result.

更新8/25：

root @ server [〜] #racadm config -g cfgUserAdmin -o cfgUserAdminPassword -i 2 newpassword
对象值已成功修改

更新#2

root@server [~]# racadm getconfig -g cfgUserAdmin -i 2
# cfgUserAdminIndex=2
cfgUserAdminUserName=root
# cfgUserAdminPassword=******** (Write-Only)
cfgUserAdminEnable=1
cfgUserAdminPrivilege=0x000001ff
cfgUserAdminIpmiLanPrivilege=4
cfgUserAdminIpmiSerialPrivilege=4
cfgUserAdminSolEnable=1