Creating a new disk formatting scheme or altering an existing scheme

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26 views

I am having problem creating a partition in unallocated space

I have 500 GB of total storage and its only available 38 GB.. What can I do? I want to create a new partition but I don't know how.. I am really new to OS X and I need help.. Sorry for my english. I ...
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106 views

Boot Camp partition won't show

I had Windows 10 installed on Boot Camp and updated Mac from Yosemite to El Capitan. Afterwards, I could no longer boot to Windows... I want a way to get to Windows or at least get to data on the ...
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5answers
21k views

Paragon NTFS for Mac 14 doesn't see NTFS disk (OS X 10.11 El Capitan)

I upgraded my Yosemite to El Capitan few days ago. Also recently Paragon sent me an e-mail with an offer of free upgrade from version 12 to 14. Since I bought ver. 12, I decided to install version 14. ...
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1answer
937 views

Deleted all partitions on Fusion Drive. Don't know how to recover

I'm kind of a novice here, and I think I got in over my head. I was trying to do a clean install of El Capitan on my 5K iMac. It has a 1TB Fusion drive. I booted from a USB drive, entered Disk ...
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1answer
1k views

Creating a partition in unallocated space

I left some unallocated space on my external HD (around 200 GB) and now I would like to create a partition on it using gpt in terminal since the Disk Utility tool on El Capitan is not even showing the ...
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3answers
3k views

How can I resize a partition on OSX 10.10.5

I have a Mac with OS X 10.10.5 on a HD which had 4 partitions. Using Disk Utility I deleted one of the 4, intending to slightly grow the 3rd (containing the OS), leaving space for a new partition to ...
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1answer
6k views

Boot Camp Windows partition lost after El Capitan upgrade

I upgraded through App Store, and after the upgrade, the boot select screen no longer shows my Windows partition, nor the recovery disk. Running diskutil list yields the following: /dev/disk0 ...
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0answers
118 views

Can't get Windows to boot after editing partitions

When I attempt to boot Windows I get the error 0xc000000e. This happened after I made a partition in Windows and then deleted it in Mac OS. Here's my current set up. Is it possible to repair it using ...
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34 views

After installing Windows 8.1 I was asked to install Boot Camp

I have Mac Book Pro Retina with OS X Yosemite and Windows 8 partition with size of 50 GB. lately, I had installed Avast security software and this made a crash for Windows partition . I could see the ...
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0answers
723 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 ...
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1answer
166 views

Recovery partition in the middle of the file system

I have a problem with my recovery partition. Before update to the el-capitan I had both osx and windows on the same ssd disc created with Boot Camp. The problem is that something went wrong during the ...
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0answers
257 views

Missing SSD space on MBPr 13, El Capitan

I have the following problem: I had two partitions, one was ~190 GB, and another ~60GB. Then I wanted to delete the second partition and resize the first one. The deletion went well (I suppose), but I ...
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405 views

How to use Testdisk under OS X recovery mode?

I accidentally broke the GUID, I suppose, when I was trying to solve the incorrect EFI partition problem. What I have now is: Disk1 is a 4 GB thumb drive with a recovery partition (disk1s2) I ...
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1answer
698 views

Error: -69711 this operation couldn't proceed because the target's boot helper was mounted; you may want to try again

I have a MacBook Pro 8,1 (13", 2011 unibody) running Yosemite (no upgrades). Tried to partition my SSD hard drive and it threw an error when it was almost through saying it can't find the partition. ...
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0answers
152 views

how to resolve disk partition issue in OSX 10.10.5?

Using Boot camp assistant I have created a partition and installed Windows 7 OS to work on both Mac as well as windows (Dual boot). But later on deleted the windows OS partition(Could not remember how ...
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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 ...
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1answer
519 views

How to change the GPT partition type of an EFI partition?

I have a perplexing problem with the EFI partition on my boot SSD. The GPT partition type is "Microsoft Basic Data". On all other drives in my system, including my Carbon Copy Cloner clone of my boot ...
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1answer
125 views

Boot from external USB3

I've recently bought an usb3 flash drive where I've put a live kali linux distribution. When I try to boot my early 2015 mac book pro (with Yosemite) from this usb3 drive I have two options: windows ...
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1answer
108 views

Reclaim SSD space from deleted partition

I have a very similar problem to one that was answered here, but I don't know how to apply the answer to my mac. MacBook Pro 15", Late 2013, 2.3GHz/16GB/512GB, Yosemite 10.10.3 I was attempting to ...
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2answers
63 views

How do I restore a Time Machine backup after repartitioning the original drive?

My goal is to backup my data by Time Machine, perform a clean install of Yosemite, partition the disk and restore some of the data. Right now my setup is only one partition. After a new setup I want ...
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2answers
386 views

Rebuild partition table on external HDD - not writable

I have an external hard drive formatted with 3 HFS+ partitions. To cut a long story short I had it connected to a Windows PC and accidentally started formatting the drive to NTFS. As soon as I ...
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2answers
892 views

Minimum Space for Boot Camp Windows 8.1

I have a Macbook Pro 2014 13-inch 128 GB and I want to install Windows 8.1 and Visual Studio 2013 Community via Boot Camp. I am Mac user and use my Mac for iOS development. Now I have to learn Windows ...
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18 views

Use diskutil without firmware password

Diskutil found some problems on my drive that need to be fixed in recovery mode. However the it department installed a password in the firmware. Is there anyway to start diskutil without the ...
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0answers
7 views

How can I re-allocate the whole space for just one partition? [duplicate]

I'm running OX X 10.10.5 on my MBP with 500GB SSD. When I initially configured the computer I've created a setup with a boot loader so I was able to boot into Linux too. Since I'm using virtual ...
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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 ...
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2answers
142 views

Time Machine restore to new partition, different computer

I split my macpro disk into 2 partitions. I wish to continue to use partition 1 as a 10.6.8 (Mountain Lion) system. I wish restore everything (O/S, data, etc.) from a Time Machine backup, from a ...
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0answers
32 views

OSX Yosemite upgrade error: “a mismatch between the MBR and GPT partition maps…”

I started following the procedure that was given after installing gdisk and got to the point where I comparing MBR and GPT values. Unlike all the posts I have seen, my MBR Partition table shows 3 ...
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0answers
63 views

Bootcamp no longer bootable after I fixed GPT/MBR mismatch error

I had an error which prevented me from upgrading my system, so I did a few commands with gdisk to fix it, but now bootcamp is no longer bootable. When I boot into it, (it doesn't appear when holding ...
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1answer
759 views

How to create a new partition for OS X, then remove the original one

I want to clean install a new version of OS X, so I was thinking to create a separate partition, transfer all applications and settings from my old system and then remove the old partition and make a ...
2
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1answer
175 views

Recovery HD present but can't boot from it

I fiddled with partitions on my MacBook Pro with OS X Yosemite, but now I'd like to reinstall the OS to restore original setup. Recovery HD is there, but if I press CMD + R at boot, Internet Recovery ...
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1answer
533 views

BOOTCAMP partition cannot be mounted

After working in Windows for a couple of days, then booting back to OSX - I cannot mount my BOOTCAMP partition in Mac OS X any more. Disk utility shows BOOTCAMP as "greyed out". Trying to mount throws ...
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51 views

Un-partition Core Storage MacBook Pro disk

I'm having serious issues with my MacBook Pro. For some reason it has been partitioned odd and I no longer have access to the recovery partition when holding the option key. I had a look at the ...
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58 views

How to recover a shared (OS X-Win) FAT partition?

How can I recover a FAT partition originally created under OS X and used mainly from Bootcamp Windows which now looks as follows: OS X diskutility shows it in grey, as unmounted partition disk0s4 ...
0
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1answer
4k 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
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0answers
48 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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2answers
245 views

Resizing HFS+ volume after cloning

I cloned a disk containing an HFS+ volume to a larger disk using the command line dd utility. Now I want to grow the HFS+ volume to fill the new disk. There's an EFI partition before the HFS+ volume ...
2
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1answer
131 views

Can't delete empty partition

I've searched around on here and viewed posts such as: I deleted my Bootcamp partition but can't resize my OS X partition Can't ever remove partition? The second one looked most promising, ...
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1answer
332 views

Resize Mac Partition is Disabled - how to partition properly

I have two partitions on my mac book pro. One partition is running os Yosemite and other one is running bootcamp windows 8.1. Yosemite is 75GB and Bootcamp has 673GB. I shrinked the windows partition ...
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1answer
185 views

How to fix my partition table after messing it up trying to install Linux Mint

I tried to install Linux Mint alongside my working OS X Yosemite. I have a Macbook Air released mid 2013 with a 128gb SSD and 4gb of memory. Well to achieve my aim I first added a partition using ...
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86 views

Move the beginning of HFS+ partition

What I'm trying to do is move the beginning of the partition on an external HD drive. I have an external HD drive with two HFS+ partitions on it. I want to grow the first one at expense of the second ...
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1answer
158 views

Dual boot Macbook Pro MD101 (Mid 2012), with OSX and Bootcamp windows and a FAT32 shared partition

I tried this and my hard disk looks something like this: Vikrams-MacBook-Pro:~ Vikramguria$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER ...
0
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1answer
45 views

How to remove windows partition without having to erase the other one?

I have an imac late 2013 with a fusion drive. I've created a windows 10 partition and I'd like to delete it. I tried with bootcamp and disk utility but as you've probably heard before, it came up with ...
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1answer
248 views

Disk Utility reading disk incorrectly; viewing ext4 as JHFS+ and seeing Recovery HD

This is imported from Superuser, I felt like I would have an easier time getting an answer here than in Superuser - it is copy pasted, as below. So, I have some strange issues in Disk Utility and ...
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0answers
207 views

HFS+ external drive missing EFI, will not mount on Mac

First off: Fear not, I have everything from this drive backed up. I'm just trying to reformat it, but I had someone else attempt it on Windows which doesn't look like it helped. I'm a novice but ...
0
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3answers
228 views

Can't create a partition

I'm trying to create a new partition for installing linux, but OSX won't let me. I saw this question: Unable to Resize Partitions, but my HD is not a CoreStorage Volume, so it didn't really help. ...
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1answer
53 views

Cannot Partition Disk with Disk Utility

I can't seem to partition my disk with Disk Utility or with the Terminal command (see screenshots). Something also happened to my other partition running Mavericks, where it just turned into an "empty ...
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1answer
1k views

how to fix GUID hard drive corrupted to MBR

I am on OS X 10.9.5 with a late 2013 iMac. I have a 3TB hard drive that has an unusual problem. It is a Western Digital 3TB Red WD30EFRX. I formatted it with two partitions, both 1.5TB. One was a ...
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2answers
276 views

Unable to install Windows 8.1 using Bootcamp, system volume doesn't contain required free space?

I'm unable to install Windows 8.1 using Bootcamp on my 2015 MacBook Air. The installer says setup was unable to use the existing partition because the system volumes doesn't contain the required free ...
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2answers
6k 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: ...
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1answer
183 views

Why can I only have 2 partitions on my 3TB Apple Fusion Drive?

According to Apple, I can only have 2 partitions on my 3 TB Fusion Drive. I do not understand why. Techtool Pro made an eDrive, their emergency boot drive, and Apple made their Recovery HD. It ...