Mac 时间机器首次备份 在即将完成时失败了

MacOS Version: 15.6, 数据 20GB

Disk: 外接空U盘(容量128GB),格式化为 APFS

首次备份, 前期进度正常, 但在即将完成时会报错,重试了4次都一样的错误如下, 说是从 APFS CheckPoint目录 unarchive失败:

```

backupd: (TimeMachine) [com.apple.TimeMachine:General]

Failed to unarchive APFSCheckpoint file at path /Volumes/Sequoia_Time 1/2025-08-19-183158.backup/.com.apple.timemachine.checkpoint error: Error Domain=NSCocoaErrorDomain Code=4864 "*** -[NSKeyedUnarchiver _initForReadingFromData:error:throwLegacyExceptions:]: incomprehensible archive (0x4c, 0xffffff90, 0xffffffbf, 0x71, 0x72, 0x65, 0xffffff99, 0xfffffff3)" UserInfo={NSDebugDescription=*** -[NSKeyedUnarchiver _initForReadingFromData:error:throwLegacyExceptions:]: incomprehensible archive (0x4c, 0xffffff90, 0xffffffbf, 0x71, 0x72, 0x65, 0xffffff99, 0xfffffff3)}

backupd: (TimeMachine) [com.apple.TimeMachine:Analytics] Failed to com.apple.backupd.result analytics.

backupd: (TimeMachine) [com.apple.TimeMachine:BackupDispatching] Backup failed: BACKUP_FAILED_COPY_STAGE_FINALIZING_BACKUP (404)

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原标题：时间机器首次备份 在即将完成时失败了