I have Big Sure Dev Beta 1 installed on an external USB-C SSD drive. Mac is a brand new 2018 Mac mini (most recent Intel model). Beta 1 works fine (well, for the purpose of beta testing anyway Big Sur Dev Beta #2 is out now. Software Update GUI Pane and CLI both see the new update, but I'm unable to downed/install it. Here is the error I see from running 'softwareupdate -d -a' from Terminal: 'Failed to download & prepare update: Error Domain=SUMacControllerError Code=7722 "[SUMacControllerErrorPreflightPrerequisiteCheckFailed=7722] Failed to perform PreflightPrerequisite operation: com.apple.MobileSoftwareUpdate.preflight.error(Preflight):MSUPreflightErrorTargetIsNotSnapshotBooted(6) | The volume can not be used because it is not snapshot booted.'

Hi all Im an IT sysadmin trying to lay the ground work for our Apps team to distribute our first internal/custom app via our MDM to our internal/private devices. I have been using DEP/ABM/VPP for a long time, but I have never distributed an in-house/custom app before. This is new territory. My current MDM is MS Intune. Our plan is to leverage VPP to do this. The app will be a private enterprise app that will only be distributed to a select group of managed iPads. It will not be a commercial public product. I have connected my MDM to my ABM/VPP account. I can see my purchased apps from Intune. I have created a dedicated Apple ID for the devs to use in Xcode. This is a separate account from the ID I use for ABM/DEP/ABM. They have tested it and it works (certs etc working when side-loading app for testing from Xcode). I have enabled 'Custom Apps' in ABM/DEP. This is a manual step required to see/distribute custom apps. Next steps? How do I link my dev's Apple ID account (used in Xcode/App Store Connect etc) with my VPP account, so he can upload the compiled app to Apple's Cloud and so that I can in-turn see it in VPP from my MDM so I can scope/deploy it to my iOS device targets? I'm missing how to "glue" all the Apple ID accounts together so our development/distribution workflows can talk to each other and work together. Thanks