Quinn Quinn, Thanks for your help. I tried two methods. Both work with our Installer PKG: Script excerpt - we set up a folder and: hdiutil create -srcfolder "$SRC_DIR" -volname "$VOLNAME" -fs HFS+ \ -fsargs "-c c=64,a=16,e=16" -format UDRW "$TMP_DMG" The other uses dropDMG from that folder. All my build scripts use a form of 'ditto' to move or copy stuff.

Here is my validation for the app: emWave Pro.app: accepted source=Developer ID origin=Developer ID Application: HeartMath LLC (GMZ3FT78RD) Validation for the DMG shows Unnotarized: spctl verification: emWavePro.dmg: rejected source=Unnotarized Developer ID origin=Developer ID Application: HeartMath LLC (GMZ3FT78RD) Here is what I get back from the portal: { "logFormatVersion": 1, "jobId": "5b0c0eed-7a61-45ed-8a85-94fe16ec296e", "status": "Invalid", "statusSummary": "Archive contains critical validation errors", "statusCode": 4000, "archiveFilename": "emWavePro.dmg", "uploadDate": "2022-07-29T14:46:14Z", "sha256": "1bb8d490311e237280b29c28831c5078ae628ad1d54e5e70c0ffe8538ad23c42", "ticketContents": null, "issues": [ { "severity": "error", "code": null, "path": "emWavePro.dmg/emWave Pro.app/Contents/MacOS/emWaveMac", "message": "The signature of the binary is invalid.", "docUrl": null, "architecture": "x86_64" }, { "severity": "error", "code": null, "path": "emWavePro.dmg/emWave Pro.app/Contents/MacOS/emWaveMac", "message": "The signature of the binary is invalid.", "docUrl": null, "architecture": "arm64" } ] }

What exactly does this mean, since the same Developer ID: Installer and : Application works in all other combos? source=Unnotarized Developer ID

Checking the app on the DMG I get this: % codesign -d -vv /Volumes/emWave\ Pro/emWave\ Pro.app  Executable=/Volumes/emWave Pro/emWave Pro.app/Contents/MacOS/emWaveMac Identifier=com.heartmath.emwave Format=app bundle with Mach-O universal (x86_64 arm64) CodeDirectory v=20500 size=112672 flags=0x10000(runtime) hashes=3510+7 location=embedded Signature size=8997 Authority=Developer ID Application: NNNNNNNN (GMxxxxxxxx) => obscured Authority=Developer ID Certification Authority Authority=Apple Root CA Timestamp=Jul 28, 2022 at 5:48:25 PM Info.plist entries=30 TeamIdentifier=GMZxxxxxxxx Runtime Version=12.3.0 Sealed Resources version=2 rules=13 files=1241 Internal requirements count=1 size=180

For the DMG I get: % spctl -a -t open -vvv --context context:primary-signature *.dmg emWave Pro.dmg: rejected source=Unnotarized Developer ID origin=Developer ID Application: HeartMath LLC (GMZxxxxx) code-block

This is the dev beta. I reinstalled the Developer Beta Access Utility and that triggered the update.

Check out the threads on the MacRumors forums about running newer versions of macOS on unsupported hardware.

Xcode installs Python 3.x