Hello, i'm not a Tech Expert but I since I ran out of space on a partition of Windows 10, I went to Disk Utility on Mac OS X El Capitan (Beta), I resized Bootcamp. Restarted my MacBook, I was holding ALT until I see that the Windows Partition was missing and I only saw 'Macintosh HD'. Can anyone help me on this?
MacBook Pro, Other OS
I'm at the part now where i'm supposed to type 'P', 'W', and 'Y'. When I typed W, it would say 'Operation not Permitted'.
Ah!. You are on ELC (Beta). This may not work. You can try
sudo fdisk /dev/rdisk0
instead of
sudo fdisk /dev/disk0
You may have to erase your internal disk and start over.
If I have to erase all my data, I might as well start Bootcamp all over. Thank you for your help, Loner.
Yes, that is the quickest option.
It may not have helped the OP, but these steps fixed my bootcamp in El Capitan. Thanks so much. 🙂
I have all the same issues as above (all fine until selecting w in the steps given), was there a way to fix this without a full reinstall?
If you are on El Capitan, you need to disable System Integrity Protection - About System Integrity Protection on your Mac - Apple Support .
1. Boot into Local Recovery (Command+R).
2. Start Utilities -> Terminal.
3. Type csrutil disable in Terminal and press Enter/Return.
4. Type csrutil status.
5. Boot normally, and type csrutil status to confirm that all individual entries are still disabled.
Now retry you Fdisk commands.
Thanks for your reply, much appreciated, having trouble booting into local recovery at the moment 😟 Cmd - R tries to boot from Internet, in which the command csrutil doesn't work as I assume you know. Holding down Option on boot, to see boot options shows "10.11 Recovery" disk but selecting this seems to freeze on bootup (white slider progress bar under apple logo been stuck at 'complete level' for hours, have tried twice this way.
Will need to find another way to get local recovery working tomorrow, and will report back.
Cheers!
If you have a the El Capitan Installer (or you can get it from the App Store), download it and installit on an external disk which will also give you a Recovery HD. Boot from this external Recovery HD and run csrutil.
Thanks for all your help, can now boot into Windows using Bootcamp - youve saved me so much time, thanks!!!
Please back up OSX, Windows and create a Windows System Restore point for future recovery.
Thank you. This worked for me on Sierra. I can now select the Windows partition but I then just have a flashing command prompt...
Do you get a flashing underline cursor in top left hand corner, or a window with text, asking you to press any key?
Top left
What is the year/model of your Mac and the version of Windows?
Bootcamp Partition Missing When Booting
