Ich habe das gleiche Problem. Der Update über das Softwareupdate Tools ist auch gescheitert. Evtl. kann jemand anhand der Fehlermeldung "Failed to perform PreflightPersonalize operation" was anfangen.
sudo softwareupdate -d "macOS Big Sur 11.2-Update-20D64"
Software Update Tool
Finding available software
Downloading macOS Big Sur 11.2-Update
Password:
Downloading: 100.00%
Failed to download & prepare update: Error Domain=SUMacControllerError Code=7723 "[SUMacControllerErrorPreflightPersonalizeFailed=7723] Failed to perform PreflightPersonalize operation: [MobileSoftwareUpdateErrorDomain(MSU):MSU_ERR_PERSONALIZATION_FAILURE(2)_1_PersonalizationErrorDomain(Personalization):kAMAuthInstallErrorInternal(14)]" UserInfo={NSUnderlyingError=0x157207480 {Error Domain=MobileSoftwareUpdateErrorDomain Code=2 "Could not personalize boot/firmware bundle." UserInfo={target_update=20D64, NSLocalizedDescription=Could not personalize boot/firmware bundle., NSUnderlyingError=0x157207640 {Error Domain=PersonalizationErrorDomain Code=14 "AMAuthInstallBundlePersonalize() failed: Internal error" UserInfo={NSLocalizedDescription=AMAuthInstallBundlePersonalize() failed: Internal error}}}}, SUMacControllerErrorIndicationsMask=0, NSDebugDescription=[SUMacControllerErrorPreflightPersonalizeFailed=7723] Failed to perform PreflightPersonalize operation: [MobileSoftwareUpdateErrorDomain(MSU):MSU_ERR_PERSONALIZATION_FAILURE(2)_1_PersonalizationErrorDomain(Personalization):kAMAuthInstallErrorInternal(14)], NSLocalizedDescription=Das Softwareupdate konnte nicht personalisiert werden. Versuche es erneut.}