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Can't set Partition to active!?


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I've read the tutorial http://forum.insanelymac.com/index.php?showtopic=22844 about setting my partition to active. When I type Diskutil list it tells me my Mac partition is on Disk1. So then when I type

fdisk -e /dev/rdisk1 I am told its an illegal option or something like that. I've tried every variation possible as far as spacing and I am still told its illegal or something. Please help!!

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It says...


Enter Help for Information


Fdisk: 1>



What do I do??


It is waiting for you to type something. Type what the guide says to type.


You just typed the "fdisk" command. (step 4)


Step 5: Then you type "p" to get a list of partitions. Read what partition number you want to set active.


Step 6: Then type "f 1" if you want to set the 1st partition active or "f 2" for the 2nd, etc.


Step 7: Then type "write" to save your choice.

Then type "y" to confirm it.

Then type "exit" to quit.


Step 8: Remove DVD and reboot.


Just like the guide says.

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