Help With Your disk could not be partitioned

First simple step is to run Disk Utility and select the outermost disk and click on Repair and then try BC Assistant again.

I'm having the same problem, although I'm running an early 2013 MacBook Pro Retina 15" with El Capitan. I ran disk utility, tried it again and it failed. I also booted into single user mode and ran:

/sbin/diskutil -fy

but I'm still getting the "your disk could not be partitioned" error. I was using FileVault, but I've turned it off and have decrypted the disk.

It is also possible that you have disk fragmentation. Do you have a HDD in your Mac? Do you have a Time Machine Backup?

Thanks for replying, I actually got it to work finally. Had to reset the PRAM and immediately afterward boot into single user mode, then run /sbin/fsck -fy (resetting the PRAM or running fsck alone didn't work). After it rebooted, Boot Camp Assistant was able to partition the drive, but when the windows install disc booted it said the new partition wasn't in the correct format. Formatted that partition, and then Windows installed (eventually, it stalled on the "almost done" screen for a good while).

I have tried mr_quetzalcoatl's solution without success.

I have a late 2013 15" retina running 10.11, with just it's SSD and a USB 3 key plugged in for the WININSTALL. I have tried:

- disk utility repair on both the inner and outer disk

- PRAM reset (option-cmd-p-r on reboot)

- /sbin/fsck -fy in single user mode (cmd-s on reboot)

- doing the above with mr_quetzalcoatl's order and immediacy

Regarding Loner T's question - I do have a Time Machine Backup - I'm not sure if he's suggesting that could be a problem, it is unplugged and I understand SSDs TRIM themselves...

drJock wrote:

I have a late 2013 15" retina running 10.11, with just it's SSD and a USB 3 key plugged in for the WININSTALL. I have tried:

Please use a USB2 flash drive. USB3 does not work. Disconnect all other external storage and peripherals. Do not use any USB hubs.

Thanks Loner, but repeating the process with nothing other than a USB2 WININSTALL attached I still get:

Your disk could not be partitioned

An error occurred while partitioning the disk

At exactly the same point.

Can you post a new discussion and include the output of the following Terminal commands? It will avoid confusion with this discussion.

diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.

Sudo command not found

In Recovery console, you do not need it...

I have this same problem, my mac claims its HFS and no core system volumes...

I cannot resize or partition

Ive tried ipartition and disk utility and bootcamp... ive tried fsck , disk repair

My goal is to load windows 7 .. i am using Macbook mid 2010

Any help or suggestions pls?

Can you post a new discussion and include the output of the following Terminal commands in that discussion?

diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.

Link to this post

https://discussions.apple.com/thread/7362114

i have posted the outcome (2nd pic) , what should I do next?

thank you for your assistance, i really appreciate it

Your disk could not be partitioned !