Creating a new disk formatting scheme or altering an existing scheme

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91 views

EFI automounts on startup

After upgrading to the newest El Capitan from 10.10. to 10.11.1 - I guess - the normally invisible EFI partition appears on the desktop as a regular volume on different machines, if I choose to show ...
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1answer
47 views

Time Machine offers to erase disk data (format), will it delete all my partitions?

So, I'm trying to perform my Macbook backup on my 3TB drive. This drive is currently has a GPT table with 4 partitions: BackupMain BackupKubuntu BackupWindows BackupMac Before BackupMain, there ...
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1answer
27 views

Corrupt Time Machine

I have an external disk partitioned in three /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: FDisk_partition_scheme *1.0 TB ...
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0answers
21 views

Create secondary partition for Windows

Recently I installed windows 7 to iMac bootcamp. But how to create more partition similar to normal windows installation? I've read on article from apple said: Warning: Do not use other apps or ...
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0answers
123 views

Winclone 5 partition is not bootable

I have been trying to transfer my windows copy from my old drive to my newer drive. I used WinClone5 to do this, but when I booted it up, it just said this: ðR(a smiley face)NTFS And a blinking ...
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0answers
74 views

OS X won't start after converting Core Storage to HFS+

I followed this guide to convert my Core Storage partition to HFS+ in order to make my OS X partition visible in Windows 10. Now I can see the Mac partition in Windows but I can't start my computer ...
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0answers
135 views

Is there any way to add a NTFS option in the format list of Disk Utility in OS X EI Captian?

There are two partitions on my drive, one for time machine, one for storing files which are exFat format. I would like to get one minimal thing to support NTFS, I would like to create a filesystem ...
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1answer
3k views

Error when installing El Capitan: disk does not use GUID partition scheme, and I am unable to convert

I am running Yosemite version 10.10.5. I have a second partition running Windows 10. My main partition, running OS X, is formatted as Mac OS Extended (Journaled). I try to follow the instructions in ...
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3answers
1k views

How to delete original partition

I have a question regarding deletion of partitions on a Mac. Due to some performance issues, I decided to start fresh and created a new partition (NewOSX) on the hard drive, to which I have ...
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3answers
167 views

MBP Late 2011 15" Windows 10 Installation Problems

Just two days ago, the machine had a Windows 8 partition on it, but it was full of malware slowing it down and hurting it. I backed up all important files and formatted the drive, so to install ...
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0answers
33 views

Partition problems - No LVG detected in Terminal after BootCamp Erase through Disk Utility (I know, I messed up)

I'm very stuck trying to get my system to recognize a full HDD and run Yosemite cleanly after a poorly-executed BootCamp removal. Here's the steps in the process so far: I erased a Windows Partition ...
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1answer
58 views

Attempting to fresh install Ubuntu dual boot rEFInd does not recognize live boot

Attempted to do a fresh install of Ubuntu by following the procedure found here: Clean install Ubuntu on a dual boot with Windows I assumed that the fact that it was for Vista instead of OS X was ...
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2answers
107 views

System keeps booting into recovery after upgrading to El Capitan

I have (had) Maverics running under VMWare Workstation 12. Sadly I decided to upgrade to El Capitan. Now my system always boots into recovery (located at "/Volumes/OS X Base System"). I tried ...
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3answers
2k views

How to install Windows 10 on external SSD that currently runs OS X?

I made the mistake of purchasing a MBP w/ only 128 GB of storage. When I ran out of space on the internal drive, I purchased a 512 GB external SSD, transferred all the data over to the SSD, and now ...
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0answers
26 views

Macbook booting up in Recovery Partition by default after dual-SSD/HDD

I've installed a SSD, and cloned my earlier HDD OS X to it using Carbon Copy Cloner. Now, whenever I boot-up, the MBP by default boots to recovery partition. How do I correct this? How do I ensure it ...
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0answers
56 views

Blank screen after Bootcamp procedure

I'm trying to install Windows 7 using Bootcamp. My computer is a iMac with Yosemite. First challenge was create a USB Stick with Window Image, because my Bootcamp didn't give me this option. I ...
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0answers
69 views

Cannot delete Free Space on iMac 5K after I deleted Boot Camp partition with Disk Utility

I had Windows 10 installed via Boot Camp, and everything was running smoothly, except I did not think ahead when I had made the partition initially. So as I was using Windows more, I eventually ran ...
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1answer
39 views

Recover my lost data

I wanted to delete my Linux partition, but I don't know why my OS X partition was also deleted. So, I then reformatted the partition and installed a new OS X (Yosemite) on that partition. I am ...
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2answers
107 views

Configure MBP back to factory but with most recent OS

What I'd like to do is get my MBP back to an "out of the box state": fresh install, recovery partition. However, I believe my partition is for OS as it was on October 2013. What I'd like is a fresh ...
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0answers
67 views

Install rEFInd on separate partition (Errors)

I am trying to install rEFInd a separate partition but have run into an error. I'm doing this because I want to install Ubuntu on my other partition (separate from my Mac and and rEFInd partition). ...
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0answers
12 views

Recovering a partition on a flash disk

The other day my 128gb flash stick refused to be recognised when I plugged it in, giving me a 'failed to initialize' error with options to format it or eject. This was particularly frustrating because ...
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0answers
23 views

How to add addional HFS+ partitions after installing Windows with Bootcamp

The goal is to create a few extra HFS+ partitions after running the Bootcamp utility while not breaking Bootcamp's boot-ability. I am Running OS X El Capitain, and I only have a single disk drive to ...
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9 views

Option key eject all partitions not working in 10.9

Option key down with right click to present the option to eject all partitions on a volume does nothing in 10.9. Works fine in 10.8 and 10.6, so I know it's not the keyboard. What I have tried: ...
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1answer
165 views

Fusion Drive with missing partition

Initially my Fusion drive (1TB data disk + 240 GB SSD) consisted of a single partition where it was installed El Capitan, then I split the fusion drive into two partitions, the second partition I ...
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1answer
40 views

Unable to access neither Partition Layout nor Option tab in Partition tab on Disk Utility

I have a problem that I cannot select Option tab in Partition tab as shown in above screenshot. I wanted to convert my external hard disk to GUID partition table. Thank you in advance for your help. ...
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13 views

Unable to install El Capitan on my MacBook Pro [duplicate]

I have a MBPR Mid 2014, 8 GB RAM, Core i5 This is how my Macintosh HD looks like: And every time I try to install "El Capitan" final App Store release version I get: "This core operation is not ...
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55 views

External disc partitioning gone wrong

I would appreciate any help as this situation is beyond my skills. I was trying to follow an internet instruction for putting an OS X Installation on my WD external drive using my MacBook, to ...
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2answers
121 views

Disk Utility stuck at exit code 0 during partition restore (in Recovery Mode)

I have an iMac running OS X El Capitan. I tried to use the disk utility in normal boot to restore two partitions into one but it would exit with an error (exit code 8) and delete the second ...
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1answer
3k views

Unable to install Boot Camp 6 Update for Windows 10 due an invalid signature

I previously upgraded to Windows 10 on my MacBook Pro (Mid 2012)'s Windows (former W7) Partition. Sadly I'm unable to install the BootCamp 6 update - it fails during the installation. Following error ...
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57 views

Scripting a Partition Scheme for CoreStorage - Mac

I've read a lot of information about the CoreStorage/Fusion Drive setup. In our environment, we work on a multitude of configurations of Macs, many with multiple operating systems on them. As such, ...
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1answer
166 views

Boot Camp failed and reduced Macintosh HD partition from 3TB to 1,46TB

What went wrong? I created a new partition with Boot Camp Assistant (OS X 2,25TB | WIN 850GB), but during the partition process, the iMac suddenly restarted. When it got back on the Fusion Drive's ...
2
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1answer
164 views

Help partitioning “free space” with utility disk

I've been trying to partition my harddrive to have ~50 gb of unallocated space (right now there's one partition with the operating system on it, so I would like to have that plus the free space). This ...
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1answer
53 views

Is there an easy way to install Linux similar to Boot Camp?

I've so far been using Disk Utility to partition my Mac's drive and install Linux, but is there an easier way to do it, using something similar to Boot Camp, or a third-party software application that ...
0
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1answer
68 views

How do I install Windows with Bootcamp?

I am using El Capitan on a 15" MacBook Pro mid 2015. I downloaded a Windows 10 iso file from the Microsoft website. Then I used Boot Camp Assistant and selected the file. I allocated 120 GB to the ...
2
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1answer
993 views

Can I restore one partition of OS X El Capitan?

I'm trying to install Windows 10 on El Capitan using Boot Camp, I could create the partition, but I need to remove this partition. When I try to enter in Boot Camp again, it shows next error: You ...
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1answer
77 views

How to resize the main volume to its original or full size?

I followed the instructions mentioned in one of the threads on this community to expand the Macintosh HD volume to its full volume. I rebooted with cmdR to Recovery Mode, opened Terminal, entered ...
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0answers
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How to fix this hard disk on a virtual machine?

I have been using OSX on a virtual machine for some time, for developing purposes. From today, I'm starting to have hard disk issues. The Disk Utility Tool says that the hard disk has 107.37 GB, but I ...
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1answer
3k views

Bootcamp Failing with Error: “The startup disk cannot be partitioned or restored to a single partition.”

I have a 21.5" Mid-2010 iMac i3 in which I am trying to install Windows 8 on. When I went into bootcamp, I received the ever so common error of: When I went to the newly designed disk utility, it ...
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0answers
72 views

How to create (the missing) El Captain recovery partition? [duplicate]

I upgraded from Snow Leopard to El Captain. Before upgrade I had a bootcamp partition, and a third FAT32 partition. this caused some complications in the upgrade process and I had to delete the El ...
0
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1answer
915 views

Can't partition SSD

Hello I tried to install Windows 10 on my Mid 2012 13' MacBook pro with a Samsung SSD 850 EVO 500GB installed. In Boot Camp it won't partition my SSD. I also tried it in disk utility but it doesn't ...
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14 views

can I recover merged HFS+ partition with TestDisk

I have merged three HFS+ partitions into one using diskutil. The partition in the middle has some very important files. Using Stellar Phoenix Recovery's recover lost partitions option, I could see ...
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0answers
18 views

does os x store logs with offset of the drive during mount?

I have messed up my partitions, I would like to know the offset of a partition before I messed it up. Does OS X log it somewhere for me to find out? Thanks
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2answers
125 views

I deleted my OSX partition, and have no patitions formatted to bootcamp, so I can only access BIOS

I recently created a windows 7 partition on my mid-2009 mac-book pro. It then corrupted, so I was forced to delete the partition and attempt to reinstall windows 7, but in the process I also deleted ...
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0answers
60 views

Bootcamp no longer able to boot to OS X

I have a Macbook Pro 2014 with a Boot Camp partition for Windows 10. I decided to create a partition for data. I created and re-sized the partition in Disk Utility (OS X) but formatted it using a ...
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0answers
3k views

Windows 10 partition no longer boots after El Capitan upgrade

I have a triple boot MacBook Pro (mid-2014 model) with separate partitions for Mac OS X, Ubuntu Linux, and Windows 10 (recently upgraded, without any issues, from Windows 8.1). Before, everything ...
0
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1answer
85 views

USB Hard Drive HFS+ Encrypted Partition Formatted / Recovery

I have a WD 1TB USB External Hard Drive that was accidentally formatted. I had formatted the disk and started writing an ISO to the disk (less than 5 seconds), when I realized it was to the wrong one. ...
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1answer
807 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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2answers
735 views

Unable to delete the core storage local volume group

Currently, I'm trying to delete one of my partitions but for some reason it's giving me this issue: Does anyone know how I could go about clearing this?
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4answers
10k views

Mount Ext4 on El Capitan

I recently installed OS X 10.11 on my Mac. I tried to read a SD card with an Ext4 partition which wasn't even shown in Disk Utility, although diskutil did show it as a Linux partition. I can't seem ...
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22 views

Can't find storage after fixing EFI system partition error

I followed How to fix the error: "This disk doesn’t contain an EFI system partition"? In the final step sudo dd if=/dev/disk1s1 of=/dev/disk0s1 I cloned an existing ESP from an internal ...