Creating a new disk formatting scheme or altering an existing scheme

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37 views

Cannot boot into OS X after partitoning

I have installed Ubuntu on a Mac Mini, everything works great. I'm able to switch back and forth without any problems. After that, I used GParted in Ubuntu to resize the OS X partition. I then create ...
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1answer
4k views

How to use “diskutil corestorage revert lvuuid” on Yosemite if disk says it is not reversible?

I would like to make a partition for Linux. Here's what diskutil coreStorage list gets me (identifiers omitted): CoreStorage logical volume groups (1 found) | +-- Logical Volume Group ...
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3answers
5k views

Restore Recovery HD partition from Yosemite downgrade

I recently got back to Mavericks from Yosemite, everything went fine. As I normally do, I checked my HDD with the Disk Utility and found some trouble, then I boot on recovery mode to fix my HDD. I ...
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1answer
19 views

Partition type suddenly FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF, drive unmountable

I have two drives inside my MBP, an SSD for the OS and the original HDD for large Data. The HDD has 3 Partitions: My Data (Core Storage volume) 20Gb for Linux 4Gb for Linux Swap Recently I ran ...
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3answers
131 views

Recover deleted Encrypted OS X Extended volume

I accidentally formatted an external 1TB HD to FAT file system using Disk Utility in Mac OS. The disk used to be HFS+ encrypted. Encryption was done when I created the OS X Extended partition, not ...
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1answer
21 views

Missing disk space after failed Bootcamp install

Earlier today, while running Bootcamp attempting to install Windows 7 on my late-2012 iMac, I suddenly lost 160g of disk space after Bootcamp failed to create the partition for Windows. Disk Utility ...
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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 ...
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1answer
909 views

How to make Macintosh HD size the same as SSD

So today, I tried dual-booting my late 2013 rMBP on El Capitan with Windows 10. I got to the step within Bootcamp where it was partitioning my SSD, and I went ahead and played a game of Super Smash. ...
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1answer
13 views

Cannot format SSD to OS X Extended (Journaled) in order to restore

yesterday my computer stayed awake during all night, when I woke up it stopped working. I got many errors, one that says for example that I don't have enough space in my computer even though that when ...
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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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5answers
36k views

How can I get an unreadable Flash Drive to work?

I got this pretty cool flash drive as a gift and I can't seem to use it. Every time I plug it in, a pop up comes up that says: The disk you inserted was not readable by this computer. I opened up ...
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1answer
40 views

Can't see Apple_HFS partition after using Minitool Partition Wizard

I tried to reduce my partition size using Minitool Partition Wizard on my BOOTCAMP partition (I didn't touch Apple_HFS partition) now I can't see my Apple_HFS partition in Disk Utility. However this ...
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1answer
23 views

Adding partition to disk creates unwanted third partition

I'm using disk utility to try to divide the partition I'm working on, which is 51.28 GB, into one main partition (to run OS X on) and one smaller HFS+ partition (on which I will eventually install ...
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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 ...
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0answers
17 views

How can I boot a WinPE USB on a Macbook? [duplicate]

I have a 2008 Macbook Pro with OS X Yosemite and Windows 7 on a bootcamp partition. Yesterday while trying to create another partition (in windows) I accidently converted my basic disk of primary ...
0
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1answer
39 views

Upgrading one partition to El Capitan while leaving the other on Mountain Lion

We have an iMac that is barely still compatible with El Capitan. Right now it runs Mountain Lion okay, and actually it has a smaller partition on the hard drive for another clean installation of ...
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2answers
158k views

What is the 'Mac OS X Base System' disk image on my 2011 MacBook AIr?

On my 2011 MacBook Air with Mac OS X Lion, and I boot into Recovery mode via holding the command-R key during startup, if I go into Terminal and do a diskutil list, I get a list of 12(!) logical ...
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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 ...
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2answers
7k 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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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
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 ...
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0answers
29 views

Early 2013 Macbook Pro Retina El Capitan Only Getting Internet Recovery

I have a early 2013 Macbook Pro Retina 15 inch running El Capitan 10.11.4. For work reasons, I need a case sensitive file system so I created a second volume on my hard drive that is formatted as "OS ...
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1answer
5k 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 ...
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0answers
148 views

Grub Rescue on Mac

I have a problem: yesterday I installed Kali Linux 2.0 on my Macbook air (runs El Capitan). However, after managing to run it, and exiting it, i couldn't find Kali on my laptop anymore. I forgot to ...
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0answers
28 views

Permanently Decrypt non-CoreStorage Partition Encrypted with FileVault

I am asking this on the behalf of someone who did not want to sign up for the SE network. I will use first-person for simplicity. When I bought my computer, it came with FileVault enabled as default. ...
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1answer
33 views

I need to make my partitions into a single one after a failed bootcamp, how do i do this?

I am a complete novice when it comes to macs. I recently tried to use bootcamp to run windows 10 and partition part of my hard drive. I used the bootcamp assistant and I followed all of the steps but ...
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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 ...
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1answer
21 views

What is the best solution for a free partition recovery?

Recently I accidentally partitioned my Seagate Backup Drive (1 TB) not knowing that everything would be wiped off (silly me). I am now in shock knowing that my files are somewhat gone. I have tried ...
0
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1answer
32 views

Is it possible to encrypt a hard drive that is dual booting ubuntu using rEFInd?

I recently installed ubuntu on my macbook pro. I am using rEFInd to dual boot ubuntu. Following the installation, I tried to encrypt my Macintosh HD partition by first converting the disk to core ...
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0answers
12 views

Cannot delete a disk partition OSX El Capitan 10.11.4 [duplicate]

For some reasons that is the only partition I can't delete but it's empty... I don't even remember ever creating it in the first place. As you can see both + and - are deactivated. Is there a way of ...
1
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1answer
38 views

Boot Camp won't work: why don't I have disk0s0 or disk0s1 partitions?

I'm trying to use Boot Camp after resolving a partition mess. I've gotten back to a single partition after receiving the The startup disk cannot be partitioned or restored to a single partition. ...
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0answers
57 views

Can't reduce bootcamp partition size in El Capitan

I have a 512GB hard disk using the latest macbook pro running El Capitan. When bootcamp partition was created it was allocated 350GB. Now I want to bring that down to 100GB since the windows partition ...
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1answer
55 views

OS volume shows as type 'FFFFFFFF-FFFF-FFFF-FFFFFFFF' after attempting to delete some Linux partitions—cannot log in

I was unable to just delete the partitions left by an old Linux Mint installation by pressing the '-' button in disk utility. I looked online and read that I could reformat them to a journaled format ...
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0answers
45 views

Time Machine partition won't mount in OSX El Capitan, but mounts in Bootcamp Windows 10

Not sure what happened. Two days ago I just did a Time Machine backup and today the partition won't mount. The external disk is a WD My Passport bought several years ago and total 2 TB. I partitioned ...
0
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1answer
122 views

Partition sharing - messed up with GPT/MBR

First of all, sorry for any English mistakes or print screen in French... I'm Belgian. I've had a lot of problems with an iMac 2009 27", mostly with Mac OS. Strangely, Windows (10) works with little ...
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1answer
42 views

Missing Space on Drive using Core Storage after Boot Camp Assistant Failure

Using Boot Camp Assistant, I started to create a 50 GB partition, but it hung on partitioning. After waiting about 30 minutes without the progress bar moving, I quit the Boot Camp Assistant, thinking ...
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0answers
24 views

How can I add a partition to my Seagate external hard drive?

I am trying to add a partition to my Seagate external hard drive so that I can install Windows 10 on it but it won't let me add a partition at all. With a previous external hard drive I had (that no ...
0
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0answers
22 views

Bootcamp [in another partition] running as Virtual Machine on Mac

I have OS X in partition disk1s2 and Windows/Bootcamp in disk1s3. Is there a way of running this Windows (disk1s3) as virtual machine while I am on OS X? I read something like that for Linux + ...
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0answers
25 views

Accidentally Deleted BootCamp Partition. How to recover files and merge partition?

I accidentally deleted the BootCamp partition through Disk Utility on MBP 2012 Yosemite 10.10.5. I had some important files on the BootCamp partition. Unfortunately, I have no backup of the Windows ...
2
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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 ...
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0answers
51 views

After stuck “Partitioning disk” by Boot Camp

I use a MacBook Pro Late 2011 with OS X El Capitan (10.11.4). I wanted to install Windows using Boot Camp Assistant. However, I got stuck at Partitioning disk.... It seems that it is a very common ...
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3answers
42k views

Why I can not see mac partition under windows installed with bootcamp?

I installed a windows 7 on macbook using bootcamp. Everything looks fine, but one thing. Here is stated that "Apple’s Boot Camp driver package automatically installs an HFS+ driver for Windows, which ...
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0answers
26 views

How can I make an image of a partition on a Windows PC, that is viewable on an iMac?

I have a Windows computer that is a theatre type computer that I'd rather not open up. I'd like to make an image file of the c:\ partition, but I'd want it to be in a format that is readable by a Mac. ...
2
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
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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 ...
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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 ...
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0answers
121 views

'the 'grub-efi-amd64-signed' package failed to install into /target/' during Linux Mint installation on an iMac

I have a Mid 2007 iMac, I've installed rEfind on the mac and the Linux Mint (Cinnamon 17.3) installer on an USB thumb drive . rEfind sees the USB thumb drive, sees grub installed on the key, I boot ...
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0answers
16 views

Lost disk space after partitioning w/ disk utility crashed

I made the mistake of deleting a bootcamp partition thru disk utility in hopes of making a larger partition with a fresh windows install. As I tried making a new FAT partition in disk utility I ended ...
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0answers
48 views

Problems Making a USB Windows Boot Drive - Then Booting my Mac from it

I've seen tutorials on how to make a windows usb/flash boot drive on a mac using a windows iso & bootcamp. I've also seen tutorials on how to boot a mac from a usb drive (hold down alt when ...
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2answers
46 views

How to read GPT drive in Mac?

I've a 500GB external drive. First partition is 199.58GB (blue) and the second partition is 277.4GB (pink). I use this drive in my Windows 10 laptop before this and both partition are GPT type. I ...