We're experiencing NilObjectException Errors while imaging our MacbookAir6,2's using ThunderBolt to Ethernet from our 10.8.4 NetBoot Image. Is there any sufficient documentation to fix this on the 8.72 JSS. It's almost 50/50 as to when it occurs, I can image get the error then re-image and not get the error.
It's then about 50/50 as to whether it will be able to recon and enroll itself properly. We've also seen a less common IOException Error. We've had to manually delete the JAMF Keychain in the Library/App Support/JAMF folder to get these machines to enroll. We're not sure if they're going to pose additional errors in the future.
We thought it may have been a bad NBI so we built a second one, and same occurrence.