Creating a new disk formatting scheme or altering an existing scheme

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10 views

Neither Boot Camp Assistant nor Disk Utility can repartition my Fusion drive [duplicate]

After playing around with Boot Camp, trying to install Windows 8.1 on my Retina iMac with Fusion drive (it didn't work), I'm left with a partition scheme that neither Boot Camp Assistant nor Disk ...
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16 views

I want to add expand my startup disk space on Mavericks but getting “MediaKit reports partition (map) too small.”

When I try going to disk utility and then the partition tab, I am unable to just expand it because of the "MediaKit reports partition (map) too small." message. I found this article: ...
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1answer
15 views

Can I keep my Boot Camp partition when moving to a larger hard drive?

I just bought a 512 GB hard drive to replace my 250 GB hard drive, which currently has a Boot Camp partition (pretty vanilla, just running a standard Windows 7 install). I was planning to just clone ...
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1answer
38 views

Two different USB 3 HDD docks - disk partitioned on one not usable on the other

I have two different 3TB SATA hard disks: a Toshiba DT01ACA300 a Seagate ST3000DM001. I also have access to two different USB 3 HDD docks: a Connectland DOCK-CNL-YJK3519-V3+ES a Focus SATA + IDE ...
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1answer
45 views

Interesting partition Map with missing HD space

I have the latest generation Macbook Pro running Yosemite, I bought this computer used I don't know if the last person attempted to install linux or what the story is but I believe my partition map is ...
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1answer
16 views

Can not reinstall Windows7 (using Boot camp) after i've removed Bootcamp partition via Disk Utility

I've removed Windows partition (might be label as Bootcamp) using Disk Utility. and after that i found that i made some mistake because in actually i should remove it via Bootcamp Assistant. What's ...
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1answer
52 views

OSX Yosemite can't resize partitions?

A few weeks ago I installed OS X yosemite.I did it on the standard partition, but I had a dual-boot with ubuntu. I realised that the ubuntu boot was gone so I tried to redo it. But in disk utility, ...
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57 views

Restoring Missing Recovery Partition on Yosemite [closed]

Thought this might be of help to those who have cloned a Yosemite hard drive but are now missing the Recovery Partition. To restore the recovery partition on a Yosemite install, you’ll need a few ...
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1answer
29 views

Restore a lost partition from degraded software mirror RAID

I used to store my valuable files on Apple software RAID (mirror). Recently one disk has failed and the mirror became degraded. I rebuilt the mirror using new drive, following this guide, but seems ...
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1answer
48 views

“This is a startup partition. You can't erase it” On Disk Utility

I want to expand my Windows partition. I saw all the tutorials on youtube and they said to drag the drive on the corner. However, the Disk partitions doesn't have a drive for me to drag and said ...
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1answer
82 views

"You can't resize the partition on this disk because it uses the Master Boot Record partition scheme [duplicate]

I am trying to get rid of one of the volume ("mountain Lion", the second from the top) of the partition of an external hard-drive. In disk utility I get what you can see in the pic, namely it does not ...
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Trying to Partition My Macbook from mid 2009 running osx 10.5.8 to partition 10GB

Ive been trying to partition my hard drive for a very long time and the only time it will work is when i partition a 1 gb section i want a 10 gb section. My total hard drive space is 111.3 GB and i ...
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3answers
57 views

Partition problem after HDD to SSD swap

Recently decided to replace my nearly full 500GB HDD with a 1TB SSD to breathe some new life into my mid-2010 Macbook Pro. I used a toaster-style drive cloner (Dyconn Dubbler) to do a sector by sector ...
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43 views

Macbook Pro OS X 10.9 Partition problem

So I bought a MacBook Pro mid-2009 with Mavericks installed (post-leasing) and this is my first MacBook. The HD was partitioned in three partitions C, D, E - I didn't want that, so I read a little, ...
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9 views

Boot Camp to replace previous Mavericks partition

I have a 2011 MacBook with an old partition containing Mavericks and a larger partition that I had reserved for Yosemite. Yosemite's running great, and I would like to install Windows alongside it. ...
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16 views

Unmount/ Disable access to a partition to a particular user on Mac

I have two user accounts in my Mac. Admin Account managed by parental controls I also have two partitions Mac OS(system partition) LocalDisk I want to restrict the users of second account to ...
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2answers
47 views

Boot camp no osx partition

So some time ago i used boot camp to install Windows 8 pro. Now i want to switch back to my mac/osx but there is no osx partition Screenshot of boot camp on windows: (Ingore the langauge, it's in ...
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39 views

Newbrand Mac with Yomsemite, 1TB HDD, limited to two partition

I just bought a new Mac , i started to make few partitions as i used to do in the past. I noticed i am not able to have more than two partition :( It says : "you may only split this partition into ...
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24 views

Claiming unallocated disk space on disk0 on Yosemite

It all started with trying to use bootcamp assistant to install windows 7. It created the partition and started the windows installation DVD which then didn't recognize the created partition. I came ...
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2answers
645 views

Unable to Partition a new Macbook Pro

As a brand new Mac user this might be my naivety or an issue with the OS. I bought a new Macbook Pro today and wish to partition the disk to allow Windows to be installed and Linux too. I was ...
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4answers
148 views

Is there any way to partition the SSD portion of a Fusion Drive?

I'm looking at my next computer and am debating on whether or not to invest in a Fusion Drive. I'll be using Windows heavily on it though, and would like to take advantage of the SSD on both operating ...
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1answer
41 views

How can I reclaim the partition's space from this shrunk volume?

I've already reverted the CoreStorage volume. And I've resized my "Macintosh HD" volume (by dragging it) and want to increase the size of my "Yosemite" volume. How do I reclaim the space (in grey) ...
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1answer
72 views

Do I have a Recovery HD?

I replaced my MBPs HDD with an SSD and put the HDD in the optical bay. Since then, I was missing the Recovery HD partition. That was still on Lion Now I have upgraded to Yosemite, and running ...
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1answer
34 views

Can't partition SDD with odd error

Whenever I try to resize my OSX partition on my SDD from 251GB to 210GB, I get this error: Couldn’t modify partition map because file system verification failed. I've tried Booting into ...
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184 views

Disk Utility won't let me create or resize partitions

My MacBook Pro 13" Late 2011 is running Yosemite. I am trying to install a Linux distribution on a partition of my hard drive. I used Disk Utility to resize the main partition on my hard drive and it ...
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2answers
227 views

What is the minimum partition size for Mac OS 10.10 Yosemite?

I'm about to set up a Mac mini to dual boot Mavericks and Yosemite for software development purposes. What's the recommended minimum size of a Yosemite partition?
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1answer
36 views

Repairing a Partition that doesn't show up in Disk Utility

I have a friend's flash drive that has been acting very strange. I am able to get the Sandisk factory partition that is 64 MB to show up, but not the actual 8GB partition with all of his files. ...
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2answers
193 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 ...
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1answer
118 views

Booting from Windows USB Key Overwrote EFI - Mac No Longer Boots

I'm using a macbook pro running Yosemite. I was trying to create installation media to install linux on an SD card, and I used a USB key that had a bootable windows installation on it. I thought I had ...
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1answer
221 views

Incorrect free disk space on SSD after cloning Yosemite partition because of corrupt “.Trashes” folder

I replaced the Superdrive of my iMac with an SSD. Next, I trimmed down the partition of my existing HDD (2TB) as much as possible using Disk utility. This resulted in a 140GB partition. Then I used ...
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1answer
870 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 ...
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1answer
1k views

Cannot boot into Windows after Yosemite Reinstall

When Yosemite went live to all users, I updated but a week later I wasn't happy with the performance of the mac and certain apps. So I installed the OS from scratch, I made a backup, erased the ...
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1answer
88 views

Why is my Partition a folder?

I've set up a iMac12,1 with Yosemite (fresh) on a second partition. Then I've formatted my first partition (after i migrated my data from my old installation to my Yosemite installation on the 2nd ...
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1answer
58 views

how can i reformat the hdd in HFS+ using Ubuntu without using mac

I have input a HFS+ hard drive which is mac osx into ubuntu because while booting up mac there a error of blinking folder with a question mark so i searched in google and the information say that the ...
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1answer
287 views

Create a partition on SD card for ext4 filesystem

I've got an SD card and want to create a partition on it for the ext4 fs. The partition must start after 1MB. This 1MB will be used for a bootloader (u-boot). I'm doing this on OS X Yosemite. Here's ...
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1answer
40 views

How Do I Recover Formatted Mac hfs+ Partition?

I was installing Win8 on a Mac where I got the error that I can because of GPT disk I dont know what MAC I have but the Mainboard is number is Apple Mac 942859f58194171B. I tried formatting the ...
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2answers
77 views

How to prevent second OS X partition from seeing apps in the other partition?

I have two partitions set up on my MacBook and I'm having issues when installing software on the new partition as it says it is already installed. The application is installed on the other partition ...
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74 views

Unable to delete a partition in Yosemite

When I was beta testing Yosemite I had installed the beta version in a partition on my disk. Now that I have upgraded my computer to Yosemite I would like to delete the beta testing partition. ...
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25 views

I have a free space in my HD. I can't use it or modify it. I

Whenever I click apply after changing the options in disk utility, nothing happens. I can't also find the free space partition using terminal. What should I do about this?
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1answer
607 views

Resizing dual boot partitions in Yosemite

I have a dual boot Macbook Air with Yosemite and Ubuntu. I would like more space on my Ubuntu partition and need to therefore reduce the size of the Mac partition. I assume this will cause some damage ...
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2answers
134 views

Should I defrag my SSD before creating a partition for Boot Camp?

I have a 500GB SSD in my MacBook Pro. I have been using my laptop for over three years - and it was migrated using Migration Assistant from a previous laptop that I had been using for five years ...
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38 views

I'm on 10.10 and willing to add a partition of 10.9 for dual boot

My late-2008 MacBook Pro runs Yosemite. In order to use a driver for my projector that only works on Mavericks, I need to create a bootable partition which runs Mavericks. (Parallels won't let me ...
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67 views

Unable to utilize “Free Space” partition

On my SSD disk I have one partition for Mac OS X Yosemite and one partition for Windows 8.1. I needed more space on my Mac OS partition and therefore a decreased the size of the Windows partition from ...
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0answers
99 views

Deleted partition with Disk Utility, can't add new one

I had three partitions on my 750 GB HDD on my 2012 MacBook Pro top end: - 'Macintosh HD' at 646.4 GB - 'Recovery HD' at 650 MB - 'disk05' at 100 GB Earlier I had Ubuntu 12.04 installed on disk05, ...
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1answer
286 views

Can Find My Mac still persist after erasing the hard drive?

I have recently acquired a MacBook Air 2011 off of ebay. In order to avoid second-hand Mac issues relating to iCloud remote shut downs, I have performed the following actions: Secure erase (using ...
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1answer
84 views

No Partition to install Yosemite to

I wanted to have a clean Yosemite installation. Therefor I deleted the existing partition to make sure a completely clean installation is made. The problem is that I cannot choose the partition to ...
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3answers
4k views

BootCamp, can't partition SSD

I've upgraded my OS X to the latest Yosemite GM Candidate and cannot for the life of me figure out how to partition my SSD for BootCamp. Here are some screenshots of the problem: And when i try to ...
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1answer
48 views

Insert third partition in previous 2-partition setup

I've read a few of the articles around, browsed the net for a while, but was unable to find a solution to my problem. I have an MBP with 1TB Flash which is split by 50% into two partitions. One ...
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105 views

Disk Utility won't let me remove partition. No matter what

Since Yosemite was released this month, I decided to inaugurate it by downgrading from Mavericks to Snow Leopard. I decided to back some files up in a partition (on Mavericks) before wiping the main ...
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1answer
62 views

Unable to do Time Machine backups from MacBook Pro on Mavericks

I purchased a MacBook Pro Retina on March 2014 to replace my old MacBook. Both were running Mavericks, but I decided to clone the disk into a partition on the new MacBook Pro and keep the ready ...