Creating a new disk formatting scheme or altering an existing scheme

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3
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2answers
2k views

How do I pass the following error message in the Boot Camp Assistant: “Please format the USB drive as single FAT partition.”?

I am running the Boot Camp Assistant on El Capitan. Whenever I reach the third screen, titled "Save Windows Support Software", on which I can select an storage medium to save the Windows support ...
0
votes
1answer
21 views

Windows 10 Bootcamp Partition Unseen By OS X

I've look around here and Apple's support community, but can't find my exact issue. I recently reinstalled Windows 10 to my MacBook Pro (Mid 2012), added a partition to start on installing Linux, and ...
0
votes
0answers
15 views

Do I need unallocated space in my 2015 MacBook Pro Retina 13"?

System Info: OS X El Capitan, Boot Camp Windows 10 Pro, 256GB SSD I extended my BOOTCAMP partition by 32 GB a couple of weeks ago using MiniTool Partition Wizard. I followed a few simple steps: ...
2
votes
2answers
4k views

Resetting MBR on iMac

I installed Ubuntu on my iMac (partially successfully) I had rEFIT installed but it did not recognize the Ubuntu installation. I removed the partition and rEFIT and now when I attempt to install ...
8
votes
1answer
42k views

I deleted my Bootcamp partition but can't resize my OS X partition

I didn't realize this would cause issues, but I used Disk Utility to delete my Bootcamp partition and then tried to resize my main partition to fill the disk. This causes an error and I searched for ...
0
votes
2answers
2k views

Install windows 10 on bootcamp fails

Im trying to install windows 10 with bootcamp. But what i`m trying it wil not work. I hope some one can help me. When i create a bootable USB via bootcamp this all works wel. than i delete the ...
1
vote
2answers
8k views

Create Windows 10 installer USB without bootcamp

I have recently wiped my hard drive and partitioned my hard drive like this: /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: ...
0
votes
1answer
6k views

Can't boot into Mac OS after Windows install via Bootcamp

I just installed Windows 10 successfully via BootCamp. Now I am neither able to boot into OSX, nor is its partition shown anywhere. Turns out the issue occurs because of a mistake I made during the ...
0
votes
1answer
37 views

How to Rescue OS X without Visible Startup Disc?

I need to delete refind but I cannot do it because I bypass it, since I cannot see visible startup disc. I stopped partition process where I tried to erase Linux partition because of infinite time in ...
1
vote
3answers
2k views

Can't boot on OS X partition after resizing Windows partition

I initially had three bootable partitions: OS X Recovery for OS X Bootcamp (Windows 8) Now, on Windows, I decided to make my Windows partition smaller, reducing its size using the native Disk ...
0
votes
0answers
9 views

Can I backup Photos in an exFAT partition?

Searching this question on the web one can find many sources affirming it shouldn't be done and some saying it's okay. I wanted a technical explanation of the reasons Photos libraries shouldn't (or ...
0
votes
2answers
5k views

Repartition hard drive with bootcamp on it

I currently have this setup on my Mac- OS X Mavericks 10.9.3, Windows (bootcamp) and a Recovery HD. My question is can I repartition my hard drive to have another partition, using disk utility (resize ...
0
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0answers
26 views

Lost disk space

I was creating a second partition. After a while the Mac didn't react. I forced-quit the Disk Utility. Now I have one partition of 556,24GB on my HD of 1,12TB. How can I get my lost space back?
1
vote
0answers
32 views

How do I expand the hard drive partition of an OSX guest OS in VirtualBox when the disk has been enlarged?

My host system is running OSX El Capitan 10.11.5 and VirtualBox 5.0.22 r108108 Using the information found in another answer, I was successfully able to extract an ISO of my host operating system and ...
3
votes
2answers
3k views

Error when installing El Capitan: disk does not use GUID partition scheme, and I am unable to convert

I am running Yosemite version 10.10.5. I have a second partition running Windows 10. My main partition, running OS X, is formatted as Mac OS Extended (Journaled). I try to follow the instructions in ...
1
vote
2answers
1k views

How do I regain unaccessible free space after a failed Boot Camp install on a non-Fusion drive?

Firstly - I know this has been answered, but I am hoping for a more broken down answer, as I am not quite so technically minded, but I can follow instructions! So in summary I have tried to install ...
1
vote
1answer
3k views

No bootable device after failed Windows 7 installation via Bootcamp

While trying to install Windows 7 via Bootcamp on my MBP Retina today I really messed up. After getting into the drive selection in the Windows installation utility I deleted the other partitions (3 ...
0
votes
1answer
57 views

Expand OS X partition

I am using a Mac (OS X 10.10.3) that has a Windows and an OS X partition. From Windows, I shrunk the Windows partition using diskmgmt.msc freeing up about 60 GB. I would like to expand the OS X ...
0
votes
1answer
44 views

Bootcamp - Lost 200GB as Bootcamp froze on “while partitioned” for 5~ hours

I was installing Windows 10 via Bootcamp on my iMac (27-inch, Late 2013) running OS X El Capitan - Version 10.11.4. What happen was yesterday Bootcamp froze on "while partitioned" for around 5 hours....
1
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0answers
37 views

I deleted Windows 10 Boot Camp partition but Mac still boots to Windows

I recently installed Windows 10 via a partition from Boot Camp Assistant but had a lot of issues with it; mainly the fact that after about 10 minutes of using it Windows crashed and took me to a blue ...
1
vote
1answer
48 views

How to repair HFS+ partition?

So somehow my 2013 Retina MacBook Pro's internal SSD went and got its partition map messed up. I was using it, put it to sleep, and when I woke it back up about an hour later I was presented with a ...
0
votes
2answers
1k views

Repair MBR (Windows 10) from OS X

I've messed up my system yesterday. On my iMac I have installed OS X and Windows 10 using Boot Camp Assistant. The Windows MBR is damaged and I can't start it anymore. I get a black screen with the ...
1
vote
3answers
2k views

How can I reformat an HDD to HFS+ in Ubuntu (without using a Mac)?

I have attached an HFS+ hard drive with Mac OS X installed to an Ubuntu machine because while booting the Mac shows a blinking folder with a question mark. I searched Google and the results say that ...
1
vote
1answer
44 views

BootCamp partition error even though my drive is one partition

I am attempting to install Windows 8.1 on my machine (a mid 2014 MacBook Pro running El Capitan) and I keep running into a BootCamp error in the first step that says The startup disk must be ...
2
votes
1answer
801 views

Partition hard disk not working on El Capitan

Here's my situation: I currently have a Macbook running OS X El Capitan. Prior to my upgrade to El Capitan, while running Yosemite, I had two partitions of my hard drive: one for my base Yosemite ...
2
votes
1answer
1k views

CoreStorageFamily::unlockVEKs() failed to unwrap the vek, status = e00002bc

I have a filevault2 disk with two partition. One is the boot partition, the other contains data, both are encrypted. Today, after installing the latest 10.8 update (10.8.4 I guess), the computer ...
1
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0answers
43 views

Freecom HD Freecom 1TB encryption “A partition, not a whole disk, is required for this operation”

I have a Freecom HD Freecom MG (1000GB, Aluminium) which I wish to use as a Time Machine disk. I tried to encrypt the disk but got the error "A partition, not a whole disk, is required for this ...
0
votes
1answer
62 views

Bootcamp problems have left my hard drive a mess

I have been trying to install Windows 8.1 via Bootcamp, and have had several problems that have resulted in failures (those are perhaps a different post). I'm using Yosemite. Currently when I run ...
0
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0answers
48 views

How can I make dd not copy empty space when copying a partition to an image file?

In my scenario, I wanted to use dd to copy the contents of a Windows 10 USB installer onto an image file to test if it works. The original windows 10 image was only about 5GB. The newly created image ...
0
votes
1answer
43 views

How can I safely create a partition to an already bootable drive

I already asked this question on Apple's community forum, right here, so I'll post the answer here if something comes up there first. This is my problem : I recently bought an external drive of ...
3
votes
2answers
7k views

diskutil coreStorage in Lion fails to create a concatenated LVG, error -69886

I would like to create a logical volume group (LVG) with two physical disks. Issue The command: diskutil coreStorage create LVGNAME /dev/disk1 /dev/disk2 returns: Started CoreStorage ...
0
votes
2answers
2k views

Can't Delete Partition

I created a partition to run Snow Leopard on my computer running El Capitan and no longer need it. I allocated 20GB to that partition. Here's what I've done. I first go into Disk Utility, select my ...
2
votes
4answers
6k views

Boot Camp Assistant crashes when partitioning drive (exception: EXC_BAD_ACCESS)

I run Mountain Lion, a fresh install, brand new Macbook Pro. HD: Samsung 840 Pro 512 GB SSD. When trying to go through Boot Camp Assistant / Setup it works fine until it wants to repartition my drive....
6
votes
3answers
34k views

I think I messed up the Fusion Drive on my 1TB iMac (with BootCamp)

this is a somewhat similar post to this one (Can't create partition on free space with Disk Utility) but not quite... It started with me creating a BootCamp partition (around 145 GB) for Windows ...
0
votes
0answers
34 views

How to format a partition for bootcamp without to partitioning all drive?

I'm trying to install a Windows 10 in my MacBook Pro 2012 with El Capitan. I am now in the step that Bootcamp will create a volume for Windows installation. My MacBook got two internal (physical) disk ...
0
votes
2answers
57 views

El Capitan can´t see or remove partition but it shows up in Terminal

EDIT: managed to reformat the partition to JHFS+, after accidentaly creating another partition i merged the new and the old one i dint want, then it let me merge all of them together. I created a ...
3
votes
2answers
4k views

How to fix messed-up MacBook disk partition table?

I have broken the disk of my Mac doing partitions with gparted. Now, nothing boots (except pendrives) and the OS X Rescue Disk recognizes the disk as Virtual Whole Disk. Nothing works, repairing or ...
2
votes
1answer
44 views

How to create a new partition on FileVault disk on MacOS

I have a 500GB disk on MacOS encrypted with FileVault 2. I have successfully resized the disk to 250GB. Now I want to create another partition to install another MacOS on the 250GB free-space of the ...
0
votes
1answer
26 views

External Hard Drive Size Problem

I recently bought a 4 TB Seagate Desktop Expansion external hard drive. However, after formatting it with Disk Utility the device still says 4 TB but the capacity says 1.8 TB. What is going on?
2
votes
1answer
50 views

Drive unmountable FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF issue

I have the standard single drive inside my MBP. The issue is inside my external usb drive. The HDD had 4 (visible) partitions: My Passport (Core Storage volume) 959 gb SSD (backup for my mbp) 339 ...
1
vote
1answer
74 views

How to Make OS X Partition Smaller?

System: SIP disabled, Macbook Air 2013-mid, about 120 GB SSD, 8 GB DDR3. My current disk state OS X portion I want to decrease OS X portion and move it to other but trying to startup partion, I ...
1
vote
1answer
39 views

Recover deleted partition space

I am having the exact same issue when it comes to not being able to reclaim space as in the answered question below... Reclaim hard drive space from deleted partition and reclaim Apple bootloader I ...
1
vote
1answer
62 views

CoreStorage Volume not detected

I had a Linux/OS X 10.11 dual boot configuration and wanted to remove the Linux partitions. I managed to remove them without any issue but when trying to merge the free space with the OS X partition ...
0
votes
1answer
79 views

Data recovery after interrupted partitioning

My MacBook Pro was working fine until my friend stopped the Disk Utility from partitioning and force quit the application. Ever since it seems that the problem has grown larger and larger as I used it....
0
votes
1answer
876 views

Reclaim hard drive space from deleted partition and reclaim Apple bootloader

I had my system dual-booted with Ubuntu 14.04. However, I found myself not using it enough to warrant the storage space. I deleted the ubuntu partition and the ubuntu swap partition. However, am now ...
1
vote
2answers
56 views

Missing disk space after repartitioning

I tried to make a partition and then tried to undo it. Now, I don't know how to get the missing disk space back. As you can tell, I have 751.28 GB disk. Macintosh HD and Recovery HD have 557.4 GB. ...
0
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0answers
25 views

Bootcamp will not let me partition Windows 7

I am trying to Partition my mid 2010 macbook to boot in windows, and so far nothing seems to be working for me. I am using bootcamp assistant and following the very simple instructions, but once ...
0
votes
1answer
81 views

Can't delete/merge my partitions on OSX

Yesterday I tried to install Win10 through bootcamp, but it couldn't install it on the premade partition. Eager as I was i meddled with the partition scheme during the installer but with no result. ...
25
votes
6answers
37k views

Resizing or expanding a CoreStorage volume

I bought a new SSD with 750 GB and made two partitions: 600 GB and 150 GB. The smaller one was thought to be a Bootcamp partition one day, but to date it was just another unused partition. When I ...
1
vote
1answer
38 views

Moving Recovery HD partition to end of disk

This is my current partition map: $ diskutil list /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme ...