VMware 5.5 Enabling HA on a cluster fails around 60% with error "Cannot install the vCenter Server agent service. Unknown installer error System"
Posted on 2015-02-21
I just finished upgrading my hosts to ESXI 5.5
Now when I try to enable HA I get the following error.
Cannot install the vCenter Server agent service. Unknown installer error System
the kb articles tell me to reboot the hosts but that didn't fix anything.
If I show more details, I get the following information.
- Cannot upgrade vCenter agent on "HOST" in "STORAGE". Unknown installer error.
- The vSphere HA availability state of the host "HOST" in cluster in "NAME-HOST" in "STORAGE": vSphere HA agent cannot be correctly installed or configured
Let me know if you need any additional information.