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I cloned a Time Machine backup folder Backups.backupdb from one volume to another following Apple's instructions. The contents of both folders look very similar (same amount of files, same file size, etc), so I assume the cloning worked well.

However, some files have different permissions listed when displayed with ls -l: A file Info.plist on the original volume shows like

-rw-r--r--@   1 extra  staff  13512 Jan  7  2015 Info.plist

while on the cloned volume it shows like

-rw-r--r--+   1 extra  staff  13512 Jan  7  2015 Info.plist

According to the macOS ls man page (I'm using OSX El Capitan) this means that the original (with @ after the standard permission) has "extended attributes", while the clone (with + after the standard permission) has "extended security information". Clearly something is different.

What went wrong and how can I make a clone without these differences?

  • Which file systems do you have on the source and destination volumes? – jksoegaard Dec 28 '17 at 13:10
  • @jksoegaard Both systems are "Mac OS Extended (Journaled)". – halloleo Dec 29 '17 at 3:45

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