Joshua Roskos

@sjha967 - This error can be caused by an unstable internet connection or DNS issues. Have you tried from another location or a hotspot? Have you tried running the installer...

Apple has a lot of checks built-in to the installer which is why it requires an internet connection along with downloading any firmware or other updates needed before proceeding with...

@patgmac - So I did see this a few times testing on VM's but never on a physical machine and it was only on 10.10 VM's. What macOS version are...

@Hacksore - Do you see the `startosinstall` binary starting the process in the `/var/log/install.log`? Also, can you check the checksum on the files after they are staged on the system?...

@sdpalmer we can't monitor for that. The script is setup to exit before the upgrade actually completes otherwise the `startosinstall` binary will try to restart while the script is still...

Hey, @joechang222 I haven't personally seen this but hopefully, someone can respond that has this setup configured.

@dannyhanes The errors you are seeing are specifically related to the jamfHelper. - Do you see the dialogs come up still event though we see these errors? - If not,...

@dannyhanes `userDialog` is defined on line 59. But if the jamfHelper is launching, I'd probably ignore the errors (although I understand its not ideal), I'll try to find someone internally...

@dannyhanes I'm glad you found a work-around for this. I'm really at a loss for what is causing it, as I am unable to duplicate this issue. l did reach...

I can say this does appear to be an issue with Jamf Helper in which the context it is being called. However I have been unable to duplicate this issue...