Please enable Javascript for better experience...
Error: Cannot install the vCenter agent service. Unknown installer error
By Pranay Jha | Apr 18, 2016 | In Tutorials | Total Views [ 14122 ]
(0 Like)

This issue may occurs when vCenter is unable to install FDM agent in ESXi host due to any reason. If FDM agent is not exist, vCenter will generate below error:


Cluster will show error as "Cannot find vSphere HA master agent"

vSphere HA State in VC Console Summary Page will show error "vSphere  HA State: Initialization Error"

vCenter will generate error while reconfiguring HA. "Cannot install the vCenter agent service. Unknown installer error"

Refer to below logs to analyze this issue.



Fix this issue by reinstalling FDM Agent.

- Remove existing agent by using below command.

esxcli software vib remove -n vmware-fdm

- Install new FDM agent by Reconfiguring HA on cluster.

- If Reconfiguring HA doesn't work, Remove Hosts from Cluster, and re-add it back. Enable HA on Cluster.

Thanks for visiting here. Share this article if you found it useful.
Like Facebook Page
Connect to twitter
Subscribe my Channel
Connect over Linkedin
Share this on Social Media

About the Author

Pranay Jha
Pranay Jha
Founder, Contributer

Public profile: user/profile/99900000

Follow me

facebook linkedin twitter G+ VMTN youtube

Thank you for visiting my profile. I am Pranay Jha, bring along a total of 11+ years of extensive experience with me in Information Technology sector for organizations from small business to large enterprises, wherein my current assignment I am associated with IBM as a Technical Solution Architect for Virtualization platform. I am vExpert x 3 (16/17/18), VCIX-DCV, VCAP5/6-DCD, VCAP5-DCA, VCP7-CMA, VCP5/6-DCV, VCA-DCV, VCA-Cloud, VSP, VCE-CIA, MCITP, MCSE, MCSA(Messaging). I am also an Independent blogger and founder of and I can be reached via email at or Direct Message via Contact Us form.

Please SignUp/Login to comment...

Or comment as anonymous...
* Name
* Email ID
Facebook Likes