Error during Pre-Checks for vCSA Upgrade from 6.0 to 6.7

Hi everyone - I was helping a customer upgrade their vCenter Server Appliance from 6.0 to 6.7 and we came across a bit of trouble.  During the pre-upgrade checks phase, our logs revealed these errors:

No file found matching /etc/vmware/install-defaults/cm.url
No file found matching /etc/vmware-vpx/vcdb.properties
No file found matching /etc/vmware-vpx/vc-extn-cisreg.prop

Googling around revealed some possible DNS related issues, but we doublechecked that all of our DNS records were good so figured that was unlikely to be the issue.  So, after some more unfruitful research, we decided to check on the current version of the vCenter server.  It was a very early version of 6.0.  Lacking further direction, we went ahead and used the management interface (via port 5480) to download the latest 6.0 updates.  After those were applied, we tried the 6.7 upgrade once again and everything went great!

So, if you come across those error messages, you may just need to upgrade to a newer version of your vCSA before applying the major version upgrade.  Have a good one!

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