Creating a new disk formatting scheme or altering an existing scheme

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10
votes
4answers
16k 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 ...
0
votes
1answer
5k 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 ...
1
vote
1answer
206 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 ...
0
votes
1answer
468 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 ...
1
vote
1answer
3k 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 ...
0
votes
1answer
158 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 ...
1
vote
2answers
137 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 ...
2
votes
0answers
437 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. ...
0
votes
0answers
35 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?
2
votes
1answer
5k 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 ...
1
vote
2answers
337 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 ...
0
votes
0answers
72 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 ...
0
votes
0answers
148 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 ...
0
votes
0answers
228 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, ...
2
votes
1answer
3k 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 ...
1
vote
1answer
226 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 ...
3
votes
3answers
15k 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 ...
0
votes
1answer
102 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 ...
0
votes
0answers
316 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 ...
2
votes
1answer
117 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 ...
0
votes
1answer
332 views

Can't modify partitions

I was beta-testing an Operating System and set up a separate 50 GB partition on my single 500 GB SSD. Now I cannot remove the beta partition. It shows up as another disk entirely. What can I do? As ...
2
votes
0answers
19 views

Unable to increase size of “Macintosh HD” partition because recovery partition is at the end of it [duplicate]

I've been using Boot Camp with Windows 7 from almost the day I bought my MacBook Air in 2012. Recently, I noticed that I had a lot more free space in Windows than I needed so I shrunk it using ...
0
votes
0answers
17 views

Couldn’t modify partition map because file system verification failed [duplicate]

I accidentally deleted a bootcamp partition within Utility Disk. I tried to reclaim the free space by dragging over the free space but it does not work. Beyond this I verified and checked the disk ...
3
votes
3answers
4k views

Yosemite Disk Utility: You may only split this volume in two

I just upgraded to 10.10- Yosemite. I have an external 4TB hard drive. These are the problems I see with Disk Utility: No more than two partitions are allowed. Changing the partition size I can ...
0
votes
0answers
757 views

Restore MacBook partition table its original state

I have a Mid-2013 11-inch MacBook Air with 512 GB SSD. It came with Mountain Lion, but when Mavericks came out, I performed a clean install. Perhaps taking the idea of clean install a bit too far, I ...
0
votes
1answer
6k views

Fixing a Windows partition boot using OS X tools

I've got a triple boot system on my Early 2013 Mac Book Pro: OS X, Windows 7 and Ubuntu. I'm using rEFInd as my boot manager. My Windows install boots using legacy BIOS boot, and OS X and Ubuntu boot ...
0
votes
1answer
685 views

Trying to encrypt external HD . GPT scheme required . Do not want to erase data

Hey so i'm trying to encrypt my external hard drive (Seagate) and I right clicked on it and selected Encrypt [name] from the menu. Made my password but could not move forward because I got the error ...
10
votes
4answers
61k views

Missing Yosemite Recovery Partition

After doing a standard, App Store upgrade of Yosemite it seems that the recovery partition is still Mavericks-specific. Whether I hold Cmd+R or Option and select the recovery partition it takes me to ...
2
votes
1answer
34 views

Can only one partition of old hard drive been transferred to new MacBook?

I just took the hard drive out of my MacBook pro that broke down a few days ago and put it into an enclosure. My questions; If I buy a new MacBook pro, is it possible to ONLY transfer the Macintosh ...
0
votes
2answers
133 views

Real performance boost with multiple partitions

I have a 1TB Hard drive with multiple partitions where I had previously installed Snow Leopard. Now I'm making a clean install of Mavericks and I have a couple of questions: 1) What are the real ...
0
votes
1answer
337 views

Cannot repair disk0s2 with mavericks utility disk on a SSD

I was trying to repair a corrupted partition (OSX Mavericks) the mac doesn't boot anymore (grey apple logo with infinty spinning gear). I've just tried with safe mode, PRAM restor etc... And the ...
0
votes
2answers
1k views

Disk Utility on Mavericks fails because “disk is too small”

I'm on mavericks and I am trying to delete a partition of an external hard drive. This is its schema Partition1: 50GB "MavericksBackup": Bootable backup Partition2: 187GB "Home Data": Absolutely ...
1
vote
0answers
486 views

Accidentally Removed EFI Partition

I removed the EFI partition accidentally but I have it on a Time machine backup. Is there a way to simply move it from my external drive to my boot drive. I've tried restoring the format of the ...
0
votes
0answers
49 views

Install linux to an encrypted FV2 disk

I got a macbook pro 9,2 (non-retina 13'') with mavericks. The HDD is 1TB and I have activated full disk encryption with FileVault2. I want to split this HDD to two partitions, one 800GB that ...
0
votes
2answers
609 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 ...
1
vote
1answer
56 views

how do I get everything back to normal (partition issue)

Okay, so I've recently shifted to Mac from Windows. I was curious to check out what the Yosemite OS looked like, and hence I downloaded the beta and had it up and running. It was downloaded on the ...
1
vote
0answers
89 views

How to automount UDF partition with strange partition ID

I have two partitions on my usb hdd: #: id cyl hd sec - cyl hd sec [ start - size] ------------------------------------------------------------------------ 1: AF 1023 254 63 - 1023 ...
1
vote
1answer
2k views

OS X Partition not resizable

3 weeks ago I installed Yosemite public beta onto a brand new Macbook Air which arrived with Mavericks pre-installed. To carry out the installation I created a new partition for Yosemite and so had ...
2
votes
1answer
711 views

Unable to extend my partition

I have searched through this site alot and i wasn't able to find any solutions. My situation is the following: I decided to install linux to dual boot with OSX at my 1TB fully encrypted with FV2 hard ...
8
votes
0answers
14k views

Reclaim Delete freespace Partition after Yosemite removal [closed]

Many of you face the same issue , that you install Yosemite in a second partition and once you decided to remove Yosemite and go back to Mavericks, you are not able to claim the Freespace partition in ...
1
vote
0answers
138 views

Double Fusion Drive Volume in Startup Menu after DIY Drive Fusion

After replacing the SuperDrive in my MacBook Pro I copied the Recovery HD to a USB stick and booted from it. Then I ran diskutil cs create MacintoshFusionDrive /dev/disk0 /dev/disk1 (SSD, HDD), ...
0
votes
1answer
235 views

How to create several partitions on an external hard, recognizable by both windows and mac?

I have an external hard drive, which already has a bootable partition for a Snow Leopard installation disk, and a bootable partition for Mavericks, both created with Mac OS X and working fine in ...
0
votes
1answer
67 views

What are the utilities included in the Mavericks recovery partition?

What is Mavericks Recovery Partition good for? I have Maverick also installed on an external Hard drive, in case something goes wrong with my main system I can use this external hard. Do I still need ...
0
votes
1answer
377 views

Disk Utility will not let me create new partition

I am attempting to create a new partition from a 3TB Fusion Drive on Mavericks, but Disk Utility won't allow it. I successfully created a partition from the same drive last month, so I am not sure why ...
0
votes
3answers
2k views

How to create third partition on a Mac with Mavericks and Bootcamp? [duplicate]

Right now I am running OS X 10.6.8 (Snow Leopard) on my MacBook Pro, with Windows 7 via Boot Camp, and I also have a third FAT32 partition where I share data between Mac/Windows. I am going to ...
0
votes
0answers
99 views

External Hard Drive Locks Finder

Last week there was a short 10 second power outage and my external hard drive was attached to my laptop (Western Digital 750 MB drive). Message came up telling me the drive was improperly removed, I ...
0
votes
0answers
996 views

How to recover fully formatted EFI partition?

I have macbook 4,1. I tried to install on it ubuntu and fully formatted hard drive. So, there are any way to restore efi partition? (now all apple bootable cd display stop sign and do not work) I ...
0
votes
0answers
95 views

Mavericks & Bootcamp Windows 8 …and the magic 3rd Partition (post Installation)

i know this question is already featured and posted - thus investigating for quite a long, to loong period of time by now i must resume: i am just as smart as i was when trying to find answers... ...
5
votes
1answer
15k 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
0answers
119 views

Suddenly SSD become unreadable, need to initialise it

I use my SSD with Mac OS on it on several mac (mine is with apple right now). It works well with one mac mini but fails with the macbook air, is shows the following message : (sorry for french...) ...