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Question:

Question: the bootcamp partition disappeared

Please help

the bootcamp partition has disappeared, it will not find> tools> the boot disk, and will not even boot it after restart and manual switching.

On the 700GB I have a 700GB I do not need to save, but to combine to have a 2TB (fusion disk).

Thank you for any advice and help to remove the bootcamp section when it does not show it to me.


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iMac (Retina 5K, 27-inch, 2017), macOS Sierra (10.12.6)

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May 30, 2018 7:16 AM in response to martinko_o In response to martinko_o

Boot into Internet Recovery, click on Utilities -> Terminal, and run


diskutil unmountDisk disk0

diskutil unmountDisk disk1

gpt add -i 4 -b 2482092032 -s 1424937103 -t windows /dev/diskN


You will need to run diskutil list to find the value of /dev/diskN and pick the 2TB disk. Do you want to remove Windows and install a new copy or try to recover the existing Windows installation?

May 30, 2018 7:16 AM

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Jun 12, 2018 5:11 AM in response to martinko_o In response to martinko_o

Are you in Local Recovery or Internet Recovery? In IR, after the unmountDisk, the resource busy should not occur. I do see the Apple Base Image in the first photo, so it is unexpected. Can you run the unmountDisk on disk1 first, before disk0?

Jun 12, 2018 5:11 AM

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Question: the bootcamp partition disappeared