Of course after the fact I am able to find information about it but like many people our citrix pvs images had the E1000 nic drive in them. I did not think there would be a problem updating vSphere to 5.1 from 5. Everything worked fine with Citrix PVS 6.1 and vSphere 5.0.
Once we upgraded cluster to 5.1 we were still fine, but we had not rebooted yet. We reboot half our servers every day. One group is in the worker group the other group is removed so users can drain off and the next day we reboot. So it wasn’t until the next morning after the hosts were upgraded that the servers rebooted. If you have vsphere 5.1 and pvs 6.1 with the E1000 driver the images will not boot up. They just go to this beautiful black screen 🙂 If you search on this you will find various articles that you can use to piece it together.
So as you can imagine it was a long weekend. With half of all of our servers not able to boot up, all 5 of our images needed to be recaptured, E1000 driver removed and vmxnet3 nic added.
Something to keep in mind when replacing the nic. http://support.citrix.com/article/CTX125361
There are many posts on recapturing images, I’ll try to add ours at some point.