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Message: <blockquote data-quote="j_pratt57" data-source="post: 1605202" data-attributes="member: 333229">After trying to install OS X Mavericks on my MacBook, at start-up, it shows an error message in the black and white coding. it says:"panic(cpu 2 caller 0xffffff802afce2f4):  "Process 1 exec of /sbin/launchd failed, errno" and so on.. After displaying this coding, the computer restarts again then comes up with a message saying that the computer had to restart due to an error and to hit a key or wait to continue starting your macbook.  After the error message goes away, the apple start up screen appears and shortly after that the same coding error pops up and it restarts itself again.  This cycle happens about three times before it comes up with a blank screen with a circle with a line through it, then the computer shuts down.  I have no idea what to do, as I do not know a whole lot about computers. Can anyone help, or has anyone had the same problem?</blockquote>

Verification: How many occurrences of a n-u-m-b-e-r between "d" and "f" in this example...(sdgs6ngklu3gd#f9%)?