I have a 1 TB drive that "must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows." When I went to disk utility, it just said that I only have one partition at 850 GB. How can I fix this?
Also, here are some images in case anyone doesn't understand my problem:
iMac, OS X El Capitan (10.11.4)
When I type 1 after n it says that the value is out of range. Is this normal?
Can you post the output of the 'p' command?
I do not what tool was used to create this GPT, but it is non standard. Here are the modified steps. We will delete and recreate the partitions shifting 2 and 3 by one.
sudo gdisk /dev/disk0
x (Experts mode)
l (letter L, alignment)
1 (alignment is set to 1 sector)
m (Main menu)
p (Print)
d (delete)
1 (Partition 1)
d (delete)
2 (Partiton 2)
n (New Partition)
1 (GPT 1)
40 (Start)
409639 (End)
EF00 (EFI Part)
n (New Partition)
2 (GPT 2)
409640 (Start)
?? (Please enter the value for GPT2 from your P command)
AF00
n (New Partition)
3 (GPT 2)
?? (Please enter the value of GPT3 start)
?? (Please enter the value for GPT3 from your P command)
AB00 (you have the incorrect code here)
p
w (Write)
y (Confirm)
Reboot and Test.
Disk Utility says that my drive is a single partition and at 999 gb / 1 TB. I can also load Bootcamp and seemingly install Windows, but it just says "An error occurred while partitioning the disk"
1. Please post the output of
sudo gpt -vv -r show /dev/disk0
2. We have not addresses the Free Space gap. In Disk Utility, click on the Free Space part of the chart, and format it to FAT32.
Also, this is what the partition chart looks like:
This is incorrect. Please re-do the GPT using the following steps.
sudo gdisk /dev/disk0
x (Experts mode)
l (letter L, alignment)
1 (alignment is set to 1 sector)
m (Main menu)
p (Print)
d (delete)
1 (Partition 1)
d (delete)
2 (Partiton 2)
n (New Partition)
1 (GPT 1)
40 (Start)
409639 (End)
EF00 (EFI Part)
n (New Partition)
2 (GPT 2)
409640 (Start)
1659286839 (End)
AF00
n (New Partition)
3 (GPT 3)
1659286840 (Start)
1269536 (End)
AB00 (you have the incorrect code here)
p
w (Write)
y (Confirm)
Reboot and Test.
I thought that I had done that right, sorry. And I can not make GPT 3. It just keeps saying I'm using that one once I get to that step.
Also, here is the print:
Please retry (we should have deleted GPT3).
sudo gdisk /dev/disk0
x (Experts mode)
l (letter L, alignment)
1 (alignment is set to 1 sector)
m (Main menu)
p (Print)
d (delete)
1 (Partition 1)
d (delete)
2 (Partiton 2)
d (delete)
3 (Partiton 3)
n (New Partition)
1 (GPT 1)
40 (Start)
409639 (End)
EF00 (EFI Part)
n (New Partition)
2 (GPT 2)
409640 (Start)
1659286839 (End)
AF00
n (New Partition)
3 (GPT 3)
1659286840 (Start)
1269536 (End)
AB00 (you have the incorrect code here)
p
w (Write)
y (Confirm)
Is 1269536 supposed to be the last sector? When I try that, this happens
It just makes me put it in again forever
Use +1269536 for size.
Thanks! This seemed to work. I just installed Windows with Bootcamp 🙂
Please back up OS X, Windows and create a Windows System Restore Point.
Ok, I've done that. Is there something else I should do now?
I can't partition my Mac to a single volume for bootcamp
