Users Guide

Upgrade failure recovery on Microsoft
Windows operating system
Check OMPC status
If the installer process is stopped or server is switched off during upgrade, the upgrade fails. Follow the steps to troubleshoot
the upgrade failure scenario:
1. Run wmic product where name='Dell OpenManage Power Center' get version command on the windows
command line interface to get the current version OMPC.
2. If the OMPC old version is displayed, for example 3.1.0.XXXX, it means OMPC upgrade operation has not been started, see
Recover OMPC section.
3. If the OMPC new version is displayed, for example “3.2.0.XXXX”, it means OMPC upgrade has been started, see Check
OMPC database service status section.
4. If neither old nor new version is displayed, see Rollback to previous OMPC version section.
5. See OMPC database upgrade status to view the upgrade status.
Recover OMPC
1. Check All OMPC services, if one or more services does not exist, see Recover OMPC section. If not, proceed with the next
step.
2. Start All OMPC services if they was not started.
NOTE:
If Dell OpenManage Power Center Database Server service cannot be started, check [DataDir]. If it has
been renamed to [DataDir]bak (for example, pgdatabak), then you may need to rename it to [DataDir] (for example,
pgdata) and restart this service again.
NOTE: If you renamed [DataDir] folder, you should give Network Service full control privilege to this folder. if the
service still could not get started, see Rollback to previous OMPC version section.
3. Remove [LocalAppData]\ompc\ompcold if it exists.
Check OMPC database service status
If OMPC database services can be started, and you can successfully login to the OMPC database dcmapp using the OMPC
database privileges , see OMPC database upgrade status to check OMPC database upgrade status. See Rollback to
previous OMPC version to recover old OMPC.
Rollback to previous OMPC version
1. Uninstall the new OMPC using msiexec /x {79427712-CD0A-4114-A571-6BCA07F2EE0A} NOWARNING=1
REMOVEINSTALLDIR=0.
NOTE:
In some case (Power off or killed OMPC installer program), there is still a corrupt OMPC in the Windows OS. It
may not be able to uninstall by the above command and will block any new OMPC installed. In this case, you need to
remove OMPC manually.
a. Open register table using the regedit command and search all key or value include {79427712-CD0A-4114-
A571-6BCA07F2EE0A}. Remove all key or value found.
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116 Upgrade failure recovery on Microsoft Windows operating system