@dpinai what's the version of the installed OS the policy is running on?

@mpermann not 100% what you are asking but we host the JSS off a Windows VM. We are running 9.82 and trying to upgrade here to 10.11 with this policy. The OS on the local machine being upgraded was 10.10. Does that help?

@dpinai I was just wondering what OS is installed on the computer you're trying to update to EL Capitan in the above screen shot. The error message seems to indicate the installer doesn't think the OS meets the requirements to upgrade to El Capitan. But I suppose the error message could be erroneous.

@dpinai Did you make any headway on this? I've just started seeing a number of fails on my end with this.

The system requirements for 10.11 state:

...a Mac computer with OS X Lion v10.7.5 or later

That's what @mpermann was getting at. Was the target computer running 10.6 by chance?

[https://support.apple.com/kb/SP728?locale=en_US](link URL)

I am going to assume that @dpinai is running a more current OS. In my case it's 10.10.5, Late 2013 iMac with 32 GB memory. Plenty of performance/storage/etc to upgrade. Something is failing identifying the update package.