Creating a new disk formatting scheme or altering an existing scheme

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1answer
27 views

Resizing a 100GB Recovery HD Partition

Some time ago, I used BootCamp to set up a partition for Windows 7 on my MacBook Pro (13" late 2014 if it matters) so I could dual-boot. I have since removed the partition using BootCamp, but still ...
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0answers
7 views

Macbook Air (2013), 10.11, & Bootcamp Problems

So I have a mid 2013 Macbook Air and I have it running 10.11. I have had a Windows 7 partition running in parallel (not the program) that I created using Bootcamp a couple months after I bought it. ...
0
votes
1answer
8 views

Can't re-enable FileVault after growing `system` partition

I recently disabled FileVault in order to grow my system partition. This ended up being rather more complicated than expected, but it worked out in the end. Now that I have resized the system ...
2
votes
1answer
14 views

Can't create/adjust/delete a partition

So I wanted to create a new partition to test the new El Capitan operating system. But I'm unable to create a new partition, the '+' sign is greyed out. This is what I have currently configured for ...
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1answer
49 views

Resizing system partition

When I installed OSX Mavericks, I left free space after my system partition in case I wanted to install a second OS there. This has proved unnecessary — I've never modified the partition table — and ...
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0answers
52 views

diskutil resizeVolume noob

Back story : After I installed Windows with Bootcamp, I wanted to make another partition where I'll install Linux, but couldn't do that from Disk Utility because I found on the internet that ...
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1answer
41 views

How many partitions should I make and what formatting schemes should be used on those partitions?

I am thinking of buying a 2 TB WD My Passport Ultra External Hard drive and I'll be using it with both OS X and Windows. I am planning to use this drive for my Time Machine data backup after creating ...
2
votes
1answer
29 views

Cannot partition Macintosh HD

Pre P.S. From what I read online, sharing your UUID is not really a security issue, but if I just basically shared my social security number, please do tell. Before I ask this, I'm a PC person and ...
1
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1answer
26 views

Software to duplicate external hard drive formatted ExFAT

I have an external hard drive with a 2.9TB ExFAT partition that I keep my photos and other media on. (ExFAT so that I can also see and edit my media on Windows computers.) I just bought a second hard ...
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2answers
35 views

MacBook Pro not booting, lost partition

I have a big issue with my MacBook Pro (OS X 10.10.4). I tried to enable yesterday the TRIM on my SSD disk (a Crucial I replaced myself). Everything was working fine since months but after restarting ...
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0answers
30 views

Is there any way to reattach an 'orphaned' Windows installation?

I have a Windows installation in a partition on my hard drive. The problem is, it's not showing up when I startup holding alt. I installed Windows through VirtualBox, linked to a physical partition ...
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0answers
19 views

Boot Camp partition corrupt and unmounted [duplicate]

After update 10.10.4 (presumably) I've lost my BOOTCAMP partition. Can not see it in Finder nor on startup. Disk Utility cannot fix it. Even from recovery mode.
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1answer
24 views

Can files be exchanged between FAT32 and HFS+ partitioned drive?

I just got a LaCie 1TB external hard drive and I have a MacBook Air with OS X 10.8. I often exchange movie and music files with friends that have PCs. If I were to partition my drive to have 250 ...
2
votes
1answer
110 views

Boot Camp partition broken and can't be repaired in OS X 10.10.4

Suddenly my Boot Camp partition vanished: not visible in Finder, not visible on startup. In Disk Utility I can see the volume, but it's broken (verification log): Verifying volume "disk0s4" Verifying ...
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0answers
24 views

Windows 7 partition on a 2013 iMac won't boot

The Windows 7 installer doesn't support my USB controller, so I'm unable to use my keyboard and mouse in the installer. This prevents me from using any tools on the installer to fix the boot process. ...
0
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0answers
42 views

Recover hard drive after allocating partition from Windows?

I reinstalled Yosemite on my Mac to have more free space for Windows since I don't use OS X. After the installation, I partitioned the OS X partition and made an unallocated space. I then switched to ...
1
vote
1answer
34 views

Cannot delete windows partition from mac

I want to remove Windows from Mac and the I know the simple way is through the Boot Camp Assistant. But that doesn't work for me as follows: However, when I try to merge the partition of windows ...
0
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1answer
23 views

How to reformat a USB to not be a bootable operating system

I recently created a bootable USB from a .img file, here's what the USB looks like: And this is what it looks like in Disk Utility: Is there a way to reformat this USB to just store files?
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0answers
19 views

How does my core drive have less storage available than the partition?

When I open Disk Utility, I have a core drive and a partition underneath it. But the core drive shows only 19 MB of storage left. on the other hand, the partition shows 55 GB free. My computer is slow ...
0
votes
1answer
85 views

Why does Disk Utility show “Macintosh HD” on both Logical Volume Group and the volume underneath?

After performing a clean install of Yosemite (erasing the entire disk using disk utility during installation), the original name of the disk (APPLE HDD HTS547575A9E384 Media) turned out to be ...
0
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1answer
25 views

Mac mini hard drive recovery w/ encrypted partition

My Mac mini failed recently, and after taking it to the Apple store, they said it was the logic board that failed, and it would be $350ish to replace, which was not worth it to me, so I took it back. ...
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0answers
18 views

I cannot make new partition after the boot camp

Before I use the boot camp I can make as I want partitions But after I use boot camp I cannot make any new partition any more!! after delete the boot camp I can back make new partition but if I use ...
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0answers
24 views

Corrupt EFI Partition or Error b/c of Encryption? & Ghost Partition

I have a 2012 Mac Mini Server with two internal SSDs. Until recently, I had Mt. Lion installed on one of the SSDs, as my only boot drive, and used the other, rarely, for file storage. I created a ...
1
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1answer
24 views

How to expand partition into free space that lies before it

I would like to expand my "journal" partition to include the free space that lies (logically) before it on the drive. How can I do this without losing the data in "journal". I have a few more ...
0
votes
1answer
31 views

What is a “standard” boot camp partition setup?

I am trying to upgrade to 10.10(.4) - currently I am at 10.9.5. I had previously done some "creative" :) partitioning of my rMBP SSD - everything was working fine, running Boot Camp as well. ...
2
votes
2answers
45 views

Disk Drive Partition: Single vs Multiple

Just for my curiosity and knowledge, from a Software and Hardware stand point prospective, what are the pros and cons of creating 2 (two) partition and saving OS X + Applications on one partition and ...
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0answers
22 views

HD corruption - OS X partition now thinks it's FAT

Well, I've got myself in a bit of a pickle here. I have been trying to do creative (unsupported, of course :^) things with my rMBP. I had been using multiple partitions successfully with OS X 10.9.5 ...
0
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1answer
40 views

My 2011 Macbook Pro won't start - folder with blinking '?'

My Mac will not start up. I went to recovery mode and made a backup of everything on an external drive. Now the Mac only starts up from the external drive. I have OS X 10.10, Yosemite. I tried to ...
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0answers
24 views

SSD partitioning fails internally, external OK

I bought a Samsung SSD 850 EVO 250GB for my MacBook Pro 13'' Early 2011, but am unable to install OS X to it. (Yosemite 10.10.3) When installing the SSD internally, OS X doesn't find the drive, and ...
0
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2answers
182 views

How do I repartition my Mac to get rid of my dual boot setup?

I setup dual boot on my Mac (with Ubuntu) and want to get rid of it. The Disk Util GUI shows me: However attempting to remove the disk0s4 or disk0s5 partitions results in: Could not unmount ...
0
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0answers
18 views

Making a Damaged USB Writable for Drive Genius?

Apologies for being (sort of) a repost from Unable to be Repaired & Further Problems but I had some further questions and I was worried they wouldn't be answered. I followed Froggard's advice and ...
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2answers
27 views

Unable to be Repaired & Further Problems

I'll start off with some information about my USB. I use a SeaGate external hard drive USB with 1 TB. About ~250 gb of it is partitioned and formatted to create a Time-Machine compatible partition. ...
2
votes
1answer
114 views

The full size of the Fusion Drive is not available for repartitioning

Any help would be greatly appreciated, I've found so many similar questions but none that match mine exactly. I created a partion on my 2013 iMac in order to test out the Yosemite upgrade. I decided ...
2
votes
2answers
50 views

Split Macintosh HD into 3

At the moment I have 1 250GB partition on my mac (Macintosh HD). What I want to do is split my hard drive into 3 partitions. This is because I want to dual boot with Windows 8.1 and make a reserve ...
1
vote
1answer
49 views

ExFAT partition on External HDD not showing up on Bootcamp Windows 7

So I partitioned one of my external HDD's for my bootcamp windows, just so I could install some Windows files without having to resize my partition by erasing it and reinstalling. Using disk utility ...
0
votes
1answer
31 views

Transfer files between partitions? [duplicate]

After using Boot Camp to install Windows on my Mac, is there any way to transfer files between the two partitions as each is only read only to the other. This is mainly because I have run out of ...
1
vote
1answer
67 views

Can someone explain what 'diskutil cs revert' does?

so I was following some instructions to get my windows bootcamp partition to resize in disk utility, because after upgrading to Yosemite I was unable to resize my partition to give one side more space ...
0
votes
1answer
20 views

Is it “mandatory” to partition a hard disk for use with Mac OS?

I have bad blocks on the internal Hitachi hard disk in my 2009 era MacBook PRO. I am reformatting the disk with the zero-out option to remap those blocks, but when it comes time to restore the ...
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0answers
9 views

Cannot reclaim partition as free space

I'm trying to reclaim some free space for my main SSD but I'm having problem, the disk utility won't let me expand. Btw I checked for core storage and it said there wasn't any. I can't use ...
0
votes
1answer
71 views

Can I get bootcamp to use existing free space on physical disk?

When I installed my Macbook Pro, I had a 1Tb drive. When I formatted and partitioned the drive, I assigned 800Gb for OSX and left 200Gb free. I intended the free 200Gb to hold a Windows installation ...
0
votes
3answers
86 views

What are all these partitions on my Mac?

I know the purpose of "EFI", "Boot OS X", and "Recovery HD" partitions. But why are there three different "Macintosh HD" partitions? And should there be two EFI partitions? UPDATE Here is what ...
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0answers
120 views

Mid 2012 15 inch MacBook Pro Yosemite 10.10.3 Grey Screen Startup Freeze w/ Bootcamp

Recently, I tried to log into a windows partition (created with Bootcamp) that I had not been on in a while. When I selected that partition from the boot options screen, it would freeze on a ...
2
votes
1answer
141 views

Restoring Fusion Drive after error on partition erase

I think I'm lost and need some help with my Fusion Drive. I have new iMac Retina 5k with 3TB Fusion Drive and preinstalled Yosemite. Things I did so far: I was working on my iMac and had ...
0
votes
2answers
149 views

Accidentally used dd on my system drive

As is wanted to write an image to usb stick, I accidentally used my system drive (macintosh hd) as target. Command used: sudo dd if=/dev/zero of=/dev/rdisk1 bs=1024 count=1 Where disk1 was ...
1
vote
1answer
41 views

Impossible deactivate the disk

Some time ago I split the hard drive (500gb) in two partitions (250 each), now I have first successfully erased one partition but I still have the second one (Mac HD 2, which runs Mavericks) but I can ...
0
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0answers
17 views

Is it possible to boot an installed partition through Virtual Machines?

My native Mac OS partition has Mavericks installed. I created another partition and made a fresh install of Yosemite on it. Is it possible to boot the Yosemite partition in a Virtual Machine or is ...
1
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0answers
35 views

How to split fusion drive?

I have MacBook Pro late 2012. Instead DVD I made SSD and Fusion Drive by some instructions from web. As you know it's logical drive and looks like one. But now I need second logical partition for ...
0
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0answers
48 views

Lost 32GB on my Macintosh HD

I created a 32 GB partition on my Mac where I installed Ubuntu, then I've deleted the partition from disk utility having errors, I restarted my mac and now I can't see the 32 GB space anymore. As you ...
0
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0answers
42 views

Partitioning a Hard Drive using “Logical Core Volume Group”

I have a series of scripts I use for repartitioning hard drives before a DeployStudio reimage. They're really simple: #!/bin/sh diskutil partitionDisk /dev/disk0 GPT JHFS+ Mac\ OS\ 10.10 100g JHFS+ ...
0
votes
1answer
38 views

Unable to change volume size on WD My Passport Wireless

I have been trying to partion my WD My Passport External harddrive that has already got data on it. All of the guides I see on the internet tell you to resize the current volume to do so. I don't have ...