Commonly used to refer to Disk Utility.app, an application included with OS X.

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Fix MacOS Mount Point

I accidentally ended up renaming my non-OS partition originally named Sanu and mounted on /Volumes/Sanu. I then tried to rename it using get info but it didn't work. So I fired up terminal, did cd /...
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59 views

Cannot mount possibly corrupted hard drive?

I have a 1TB external hard drive that I'm trying to get working again so I don't have to buy another.It was previously encrypted and partitioned. I attempted to remove the partitions (to 1 partition)...
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278 views

When I try to make a partition, it says “operation failed”

MacOS High Sierra. I don't know much about technology(if anything)... When I try to make a partition in disk utility(MS DOS(FAT)), it says operation failed. I clicked details and it said "Running ...
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129 views

CygWin lsblk not found on repositories

been looking for lsblk (and other storage tools)inside cygwin (32 bits and 64 bits) but cant find in any repository...in cygwin site, package search:cygwin-x86-32bitsonly appear a match inside ...
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283 views

What is the equivalent of windirstat for Android for identifying space hogs [closed]

I have a Google Nexus 6 running Android 7.1.1. How can I find what is occupying the device's disk space ? It has a 32 GB disk but most of the time, I see only 300-400 MB free space, getting constant ...
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29 views

How to Repair Mac Boot Drive when not able to boot into Machine?

Disk Utility Failed with errors. Wanted to use commercial tools say Disk Warrior to repair the drive.How to use these tools when MAC not is not booting up?
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1k views

How to remove partition and extend macOS partition size in macOS High Sierra?

On my Mac, I had a BootCamp partition set up that I deleted using Disk Utility. Here's what the current setup looks like:And here it is in the Partition dialog:Dragging the control on the pi chart ...
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36 views

hard disk locked and no password to unlock it, how and what do I do about it

Hard disk in the laptop it came with when I switch on the system it shows me a space for password and I don't have any idea of what the password could be and when I put it (hard disk) in an external ...
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23 views

Ejecting RAID on a Macbook Pro running Sierra

I have a RAID 1 (mirror) setup with 2 Seagate 8TB drives. Each one is connected to a USB 3.0 hub which plugs into my computer. When I try to eject the drive Disk Utility shows the RAID is disconnected;...
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2answers
1k views

Macbook SSD Volume Erase Failed (trying to restore MAC OSX)

Ok, so short story is I tried to install windows 10 on a flash drive of 120gb, and accidently installed it over the main SSD of my 120gb MacBook Pro.This of course means that through the Windows ...
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53 views

Im stuck on disk utility and can't get my operating system to install?

Don't know where to go from here? I've been going around in circles for hours. I have a bootable USB drive with Sierra on it, but I get to the install disk and my HD doesn't show.
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88 views

Bash Script; process macOS disk number based on drive size… GREP

I'm looking to script a few CoreStorage commands on drives automatically. The problem is one of the drives is external, which means it can appear mounted on the system as anything from disk2 to disk4 ...
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37 views

How do I change the disk size with mkdosfs

So I recently have received a 256GB SD Card on eBay for pretty cheap, but turns out that the factory part number printed on the back plastic was listed as an 8GB card. It was modified from the ...
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103 views

Macintosh HD volume reduced after error during Bootcamp Partition

I was creating a new partition with bootcamp assistant, when this screen came up:your computer restarted because of a problemWhen the computer was on again, I checked my disk utility and the ...
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1answer
146 views

RAID 1 drive showing as Uninitialized in Disk Utility

I deleted my RAID set by clicking "Delete Raid..." inside of Disk Utility. After that, my drive became like this:How can I convert this drive back into a normal external hard drive? I have access to ...
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33 views

OS X 10.5 Leopard (G5) can read/reformat disk, but says it's full when I try to copy to it

I've got an old 2005 G5 cheese grater tower that was my former media center. I pulled it out of storage today to try and retrieve backups of a couple of items I'd misplaced, and am having a bit of an ...
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1answer
639 views

Units misunderstanding in fdisk / gdisk / parted

I was running through a partioning problem recently and I couldn't find out which utility was using MB or MiB, and why they couldn't be consistent in all three utilities.For example, in fdisk, when ...
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28 views

Hybrid - Disk 0 / Disk 1

Somehow C and D switched places. I need the boot disk back at Disk 0. My boot and recovery options have changed as well. C needs to Disk 0 it is the boot and recovery disk.
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1answer
526 views

WD My Passport can not be formatted on mac

Product: WD My Passport Ultra 1TBOperating Systems: Mac & LinuxI recently used my WD Passport for a linux system. I formatted this drive in linux to ext4. Now I want to use this drive for my ...
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1answer
49 views

Need disk utility to find folders with large amount of files [duplicate]

Am having trouble with an online backup service that supposedly fails because it is finding I have some folders with an excessive number (in the millions) of small filesNeed a disk utility that will ...
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1answer
360 views

Windows 10 cannot see all partitions on external hard drive partitioned in Mac OS's diskutil

Short Story: I partitioned an external hard drive in Disk Utility, and now Windows 10 can only see the first 2 partitions.Does anyone know how to fix this?Long Story: I have an early 2014 11" ...
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2answers
43 views

is using partition disk software same like we partitioning itself

i want to make new partition on my disk and im thinking of using software to make new partition.but i have some question on my mind:is using partition disk software same like we partitioning ...
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163 views

harddisk of 1 tb with exfat not detected in macbook pro el capitan

My 1 Tb HDD is formatted in EXFAT so it could be detected both in Windows and MacOS. However, the hdd has power blinking but it is not detected in MacOS. It is working well in Windows though. On Mac, ...
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1answer
138 views

iMac not booting after trying to encrypt a folder with Disk Utility

So the issue I am currently trying to fix is the following:My brother in law owns a iMac Late-14. He tried to encrypt a folder using disk utility but failed or such. After that he rebooted the iMac, ...
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1answer
614 views

Create single disk image from drive with multiple partitions

I'm running Mac OS X 10.11.6. I have a variety of old CD-R's that contain multiple partitions (I would imagine this also applies to an HD). When I insert the disk, each partition mounts as a separate ...
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58 views

Unable to rename a disk image on a Mac

I tried renaming the disk image but after I close the "get Info" window it changes back to "Disk Name 1" instead of "Disk Name" I tried renaming it from Terminal, so now it gets renamed to "Disk ...
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127 views

enlarge disk partition El Capitan on vmware

I have a version of El Capitan running on my server. However When I first created it I only assigned 40GB to it. Now I want to make it larger so I added 140GB to the disk size. However I don't seem to ...
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3k views

format disk with APFS, the new apple file system?

Has anyone managed to format an actual real disk with the new apple filesystem APFS in Mac OS Sierra ?the documentation explains how to make a disk image with APFS:hdiutil create -fs APFS -size ...
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1answer
95 views

How to expand my main partition disk space?

I have a VPS (running Ubuntu 16.04 64 bits) I can only access remotely through SSH. Now, my main partition has no more free space while there are around 50GB available on another partition. I'm trying ...
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530 views

Copy files from external hard drive that Disk Utility can't repair

I have a 2 Tb WD MyPassport Ultra external hard drive containing lots of important data, and a Macbook Pro running OS X 10.9.5. The harddrive fell while pulling down lots of data via wget, and now ...
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132 views

How can I backup my files in this situation (recovery mode)?

My disk has been corrupted and has forced me load osx in recovery mode. Going to disk utility, I've tried verifying an image which needed repair. After attempting to repair, I've gotten to the ...
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709 views

OSX10.11.3 How to combine disk partitions?

My MacBook Air was installed two systems, OSX and Windows, thus it has two disk partitions: Machintosh HD (40G) and BOOTCAMP (80G).I have decided to remove Windows from my MacBook. I used to the ...
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39 views

Is “DISKUTIL” available for Snow Leopard 10.6 MacBook Pro?

Is "DISKUTIL" available for Snow Leopard 10.6 MacBook Pro?Is there a way to reach the terminal of OS with a keyboard command when start is running?
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1answer
2k views

How does disk utility show negative disk usage for a USB Drive?

I have a 16GB (I think) USB flash drive.When mounting under OS X, the disk utility reports a capacity of 16.71GB, and available space of 18.52GB. And therefore shows that I have used -1.81GB of ...
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1answer
208 views

How to check what apps that prevent hard disk from sleeping in OS X

I am using OSX El-Capitan and i thing there is an app that prevent the harddisk from sleeping and keep it spinning.Some of the answer i have found is to check and repair the harddisk permission. I ...
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2answers
1k views

Why should we wipe disks multiple times? [duplicate]

There exists various ways of destroying the data on a disk. Even simple wipes differ, some disk utilities give these options:Format (does not actually wipe)Wipe 1 time with zeroWipe 1 time with ...
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1answer
51 views

OSX10.11 DiskUtility v.15 bug in SDXC card access?

OSX10.11 has DiskUtility v.15 and when trying "Info", "FirstAid", or "Erase" the SDXC card in the SD access slot; these functions never finish - therefore can't Quit Diskutility - only way to stop is ...
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7k views

How to remove temporary OSXRESERVED partition not deleted after Boot Camp setup?

The Question:After installing Windows 8.1 on a Mac using BootCamp, an 8GB partition called OSXRESERVED is left behind. How would one safely remove it and reclaim the space for the OS X partition ...
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1answer
469 views

Error preparing the Time Machine backup disk

One of my backup disks has problems. I keep this disk (BU2) at another location and do a backup when I'm there. The last backup was from before the upgrade to El Capitan. At home I have another backup ...
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1answer
9k views

No CoreStorage logical volume groups found

I ran the following command on my Macdiskutil corestorage revert BE18BCE1-9DEA-494F-84F0-9EFC34AFB9AEAnd now running diskutil corestorage listProducesNo CoreStorage logical volume groups ...
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464 views

OSX refuses to create a partition on my 4TB external, despite free space

I have a 4TB HGST external Hard Drive. The first partition is for backing up my Windows system, which is 3.5TB, and there is ~500GB "free space" to let OSX create it's own HFS+ partition for Time ...
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1answer
814 views

SSD showing up with over a dozen *tiny* fake disks in `diskutil list`

I bought a new SSD from Other World Computing. Unfortunately, now that I've got it installed, it's showing up as 14 individual disks, only one of which is actually of the advertised size:Meanwhile, ...
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2answers
91 views

AWK formatting Disk Utility command formatting incorrectly

I am trying to learn awk at the moment and so I am trying it on the disk utility command.Here is the output when I run Disk Utility list disk0/dev/disk0 (internal, physical):#: ...
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2answers
297 views

Microsoft disk integrity tools like ScanDisk, CheckDisk, and Error-Checking? How do they differ? [closed]

There's been something I've been curious about regarding 'disk integrity' tools for sometime now...Specifically, as regards computers that use an operating-system by Microsoft, there's been 4 tools ...
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1answer
3k views

Mount USB drive as local folder on Mac

I bought an external 1TB USB drive and I want to make my Google Drive use the USB drive instead of my external disk. The reason why I want to do this is because my Google Drive account is 1TB and my ...
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1answer
270 views

Need to Convert Dynamic Disk to Basic Without Formatting

My hard drives got converted to Dynamic in order to increase the number of partitions. I tried Partition Wizard Server Version, but its not working. I need to convert the partitions to basic to ...
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1answer
4k views

OSX Partition failed with the error: The chosen size is not valid for the chosen file system

So I had a failing 1TB drive in my macbook pro, I managed to copy it bit for bit to a new 2TB drive. The new 2TB clone now works fine. I have 2 partitions on the new drive, OSX yosemite and windows ...
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546 views

Identify latest added or updated files in Windows file folders

In Windows Explorer, I would like to list all the files in a folder, including those in subfolders, and sort them by the time they were added, or the last time they were modified.I am trying to ...
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1answer
88 views

Disk Utility Requires Admin Password

I've been experimenting with Disk Utility lately, trying to create a password protected folder. The strange thing is, I tried to make an image out of this folder called "Chess" and it created ...
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1answer
7k views

How to quickly force-clear the dirty bit on ExFAT filesystem

My ExFAT partition is about 1TB and it takes chkdsk about 10 hours to check and clear the dirty bit flag. There is never an error. It is caused by the drive being disconnected in an unsafe manner (it ...

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