Issue: Citrix MCS Error “Master VM has invalid configuration”
August 22, 2022
Issue and Background
The administrator encountered the error at the end of the Machine Catalog setup of “The master VM: “xxxx.vm/CTX.xxxxxxx.date.snapshot”, has an invalid configuration”. A rather obscure and vague error merely eludes to an issue with the VM.
Root Cause and Resolution
Citrix Machine Creation Services (MCS) cannot provision machines from a master image if the OS/C drive disk isn’t in the 0:0 SCSI controller position.
Edit the master VM while it is offline on the hypervisor and adjust the SCSI controller C drive disk to 0:0 per the example below in VMware.
Special thanks to our Reubin Huckle for his quick diagnosis of the issue.
THANKS RUEBIN! This Fixed our issue on our recent conversion to MCS! This website has so much helpful information and saves us constantly. Cant even to begin to thank you for everything you have taught (and fixed!) for us!
Big thanks, it was simple but I didn’t think to this. Don’t forget to take a snapshot after the change to deploy.