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In preparation for Lion, I want to make a bootable clone of my system to an external harddisk. I use TimeMachine, but I want to be sure I have a running backup.

Of course, there is much stuff on my system which doesn't need to be secured. This includes ~/Library/Caches and especially the installation of the developer tools (/Developer). To save space, I don't want to clone these.

Which tool can I use to do that? I have always cloned my harddisks with Disk Utility, but you obviously can't exclude directories with it.

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up vote 6 down vote accepted

Both Carbon Copy Cloner and SuperDuper can clone and omit files or directories from the clone.

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Is the backup bootable when using the "incremental backup of selected objects"-option of CCC? –  the-kenny Jun 4 '11 at 11:19
    
I think so help.bombich.com/kb/troubleshooting/… –  Mark Jun 4 '11 at 11:22
    
Thank you, sounds perfect! –  the-kenny Jun 4 '11 at 11:23
    
+1 - Carbon Copy Cloner FTW! –  boehj Jun 5 '11 at 3:37
    
I temper that 'FTW' now that CCC costs ~$40 (double what OS X costs)! –  boehj Oct 28 '12 at 6:48
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