VMware PSC failed to run vdcpromo

/ July 24, 2018/ VMware, vSphere

Hi All, I’ve got something to share about an error while deploying a new PSC in an existing SSO domain.

In the second admin interface ( stage 2 ), after deploying the appliance, you must specify which configuration you wanna used for your environment.
In my case I was trying to connect a second PSC appliance to my existing SSO domain with a new site.

At almost 6%, I’ve received an error message which contains the following message; “vmware psc failed to run vdcpromo”, and that was all.
the bad thing was you cannot retry the configuration wizard, you must re-deploy the appliance.

After the second time getting the same error, I’ve enabled ssh for looking closer in the logging, I believe there was more.

When hitting an error while deploying the appliance, you can use the following log file to get more information


Oh, that is the cause. object vcs-psc02.breugel.local exists already. a few weeks ago, I’ve upgrade the PSC01 with a newer version, using the gui installer. This way of upgrade deploys a new appliance with a tempory ip adress and configuration. the installer runs an import job at the end, but i think it doesn’t cleaned everything up.

For deleting the old object, use the following command

cmsso-util unregister –node-pnid FQDN_of_failed_PSC_or_vCenter –username administrator@your_domain_name –passwd vCenter-Single-Sign-On-password

In my case, after deleting the old object, the configuration wizard succeeded and my PSC appliance was ready for use.

The most common errors are;

  • Time errors ( Time missmatch with other PSC servers are killing for your deployment )
  • DNS errors ( The dns records must be created before doing the configuering )

so before deploying and configuring, check the prerequisites


  1. Thanks for this, it really helped me out today when I was determined to not rename a VSCA I was rebuilding.

    One note for anyone else using it, vCenter services need to restart after the command is done and that process will take few minutes during which your PSC will be unavailable.

    1. Hello Jonathan,

      i’m gladd to hear that the blog helped.
      Thanks for the note!



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