Questions tagged [disk-utility]

Apple's built-in disk management utility for the mac. Erases, formats, and restores volumes and drives.

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The startup disk cannot be partitioned or restored to a single partition. Windows 10 and Mojave help! [duplicate]

The startup disk cannot be partitioned or restored to a single partition. The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp ...
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MacBook Air restore [closed]

I restored my Mac to factory settings for the purpose of selling. I received the MacBook back and deleted the user profile because the buyer changed the password. Now I am in disk utility trying to ...
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MacBook Pro after delete ubuntu partition, I lost my principal partition

I have an issue with my MacBook mid 2012. After deleting my Ubuntu partition, I lost my principal partition of macOS x. When I restart the MacBook and pressed option, nothing appeared. I tried to fix ...
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Unusable 2.5" external HDD. Partition failed with the error -69760: Unable to write to the last block of the device. Exfat only? Repairable?

Update 1: Somehow, after unconnecting and re-connecting, the original disk (disk1) has now returned to original state, with the readme file as well! I still have another disk which is not working. ...
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hdiutil attach -shadow not working

This question is for those of you familiar with command-line tools and disk images. I'm stumped! Previously, I could mount a read-only disk image with a "shadow" file to make it read-write using this ...
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What is Macintosh HD - Data - Data?

I just formatted my Macbook Pro. Using macOS Catalina 10.15.4 At boot, I pressed Cmd+R to enter recovery. I then used the disk utils to erase the "Machintosh HD - Data" partition. I then went over ...
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No security options for external hard disk erase in Disk Utility

I'm trying to erase an external disk drive that I had been using as a backup disk. There are no options for me to securely erase - the option just isn't there at all. It is currently formatted as MAC ...
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back-ups in Recovery Mode

After my MacBook wouldn't start, I ran First Aid in Disk Utility which noted that the errors couldn't be fixed. Before taking any additional steps, I decided to run a back up on an external hard drive ...
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Circle-backslash symbol at boot on MacBook Pro mid 2012

At reboot I get the circle-backslash sign on a MacBook Pro mid 2012 with an SSD. The first time I pressed CMD + R and opened Recovery Mode from internet, ran Disk Utility and corrected an error on ...
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Error after partitioning my SSD

I recently partitioned my SSD as seen in this question MacOS wont boot after partitioning my SSD. After fixing this I tried to create a new partition in the macOS Disk Utility program. I have enough ...
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Resizing a partition got stuck, what to do now?

I'm trying to resize my Mac partition from 380 GB to 350 GB. Disk utility didn't allow me to do that, claiming my current container size is also the minimum container size, despite having 130 GB of ...
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Why isn't new (erased/formatted) SSD showing anymore in Disk Utility (and can't install OS on it)?

I just replaced the SSD in my MacBook Air (early 2015). I erased/formatted it in the Disk Utility (choosing APFS as desired format and GUID partition scheme) and then tried to restore my Time Machine ...
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How to remove Bootcamp partition + unallocated space partition? [closed]

i'm having a problem with partitions on my High Sierra Mac OS. I don't have a regular bootcamp partition so trying to remove it with bootcamp app won't work. I wanted to add more space to my windows ...
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Can't increase APFS volume's size

I've created a new partition on my Mac and deleted the previous one. I can't find any way to increase the "Container disk1" size. Even if I try to reinstall the OS with recovery mode, it's written ...
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How can I recover my external hard drive's free space? [duplicate]

I had these partitions on an external hard drive: /dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme ...
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Shrink APFS Partition with Catalina [duplicate]

I had created a bootcamp partition. I have now removed it using the Bootcamp Assistant. I thought I could then recreate it at a larger size. Bootcamp assistant does not allow me to choose a larger ...
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Should I create APFS volumes or a partition on an external disk?

I have just newly bought an external drive (not SSD), and was planning to create several partitions on it, for example to keep my files separate from Time Machine backups. However, when browsing ...
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External HD: Partition map check failed because no slices were found. (-69770)

I can't access my external HD. This is the error that I get when trying to run first aid in disk utility: Running First Aid on “WD My Passport 25E2 Media” (disk2) Checking prerequisites Checking ...
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Need to get rid of disk image after Bootcamp

So, I was using Bootcamp, but during the point where it asked me to create the partition size, I decided that I no longer wanted to do it anymore and I used the quit option. However, after quitting ...
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Seemingly unprovoked software corruption on external drive. Can I salvage?

I have an external disk on my Mojave system that seemingly had the volume name overwritten with another volume's name and now it won't mount and Disk Utility firstaid won't help. I have an external ...
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Where did the free space for my deleted ExFAT partition go? [duplicate]

I had these partitions on an external hard drive: /dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme ...
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How to remove a container disk and reclaim space with main partition? (Similar to another question)

So basically im an idiot and dug myself a hole. Im nearly out of this mess but I still have one thing to do. Just need to get the data back that is in these containers. Help is much appreciated. I can ...
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How to remove old bootcamp partition in terminal

I needed to remove my old windows bootcamp partition, which took up 50GB. Bootcamp itself would not let me do this, as it kept requiring me to have 40GB of storage, which I could not make (my mac is ...
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Disk image creation from folder: error 28 - no space left on device

I wanted to create a full copy of my MacBook Air in a disk image for archive. I can't save the disk from the booted system, so I restarted my Mac in Recovery mode (keys Command and R) on boot. From ...
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Data not backed up, System not booting, Getting Error: -69845 after trying to fix bad Partition Type

A few months ago someone installed Linux on my computer using rEFInd for a project. I am using a 2015 13" Macbook Pro with 256GB SSD. The partition for linux was made to be 60GB. After the project I ...
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MacBook Pro 15-inches display not working: how to isolate the cause of the issue?

On last Saturday I left my MacBook Pro (15-inches display, mid-2012 release) on during the night in order to finish some backup tasks and I scheduled its shutdown for a certain time using shutdown -h. ...
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Windows 10 on Imac mid 2011 High Sierra 10.13.6

Hi guys im trying to install windows 10 on my second internal hard drive ssd with a caddy. I have already done the usb boot but when i try to boot form the usb to install windows i receive a blue ...
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After uninstalling Boot Camp disk space did not restore

It's been a pain for me to install windows 10 on my Mac. I failed and decided to use a different iso. I uninstalled windows via bootcamp - it said it restored the memory succesfully. However the 150GB ...
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Catalina's usage of 15-plus GB in 'Other Volumes' versus Sierra

I have two Macbook Airs each with an SSD of about 120 GB, with the difference being that one has Sierra and the other has Catalina. The user data are virtually identical (though the one of Catalina ...
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Prevent certain APFS volumes from being deleted in Disk Utility.app

I can open Disk Utility and permanently erase any highlighted, internal APFS disk volume not being used to boot the currently running operating system, just by clicking the delete or - (minus) button, ...
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Macintosh HD not using entire drive

I have a 2016 15" macbook pro with a 256gb ssd. Only 122gb are used by MacOS. How do I get MacOS to use the entire drive? I believe this happened because of a botched bootcamp uninstall. Disk utility ...
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Mac Internet Recovery no disks detected to install or to erase with disk utility. Aftermarket SSD is fully functional running Ubuntu

After doing a bit of messing around with Disk Utility I formatted my partition with MacOS installed. I installed Ubuntu just fine and set it to use the entire disk. Everything is working just fine on ...
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MacBook Pro partition disk0s2 cannot be mounted

I am new in the internet forums. I apologize in advance. I believe I have a similar problem than the one described in second_step, since I am coming from a removal of Ubuntu dual boot. But the ...
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Cannot resize APFS container using diskutil

I've tried few suggestions on resizing disk and cannot manage to do this. My system: diskutil list /dev/disk0 (internal, physical): #: TYPE NAME SIZE ...
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My Internal SSD is Not Showing Up in Diskutil

I ereased current MacOS system and tried to setup new version from scratch. But Macbook can't show internal SSD in diskutil anymore. I can't access my SSD in Macbook. Whan I tried until now and ...
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Restore from TimeMachine after merging all partitions

I have a MacBook Pro Mac1 with multiple partitions as shown below. I want to restore this Mac1 from a timeMachine of another Mac2 which has only one partition and I want to do the restore so that Mac1 ...
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How to force remove a file on my disk with permissions I am unable to reset?

I downloaded anaconda and I accidentally started to download it onto my top-level directory, the disk itself, and I cannot remove it. I can't change the name, and when I change the permissions from ...
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Partition Removal Failure. Memory is now missing

I was trying to get rid of an old Bootcamp partition I didn't want on my 2012 Mac Mini. I was removing it from the disk utility app and I lost power half way through. Now the partition is gone, but ...
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Hard drive in external enclosure won't mount

I'm trying to retrieve data from an old MacBook. I've removed the hard drive, put it into an external enclosure, and connected it to my current MacBook. This is the structure of the drive in Disk ...
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Setting up SSD with Catalina install

I recently bought a used 2017 iMac which came with 2 physically separate drives it seems. One is the internal 32GB Apple PCI-Express Internal Physical Disk and the second one is a 256GB Samsung SSD (...
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Warning: xf : INO_EXT_TYPE_DSTREAM when running First Aid of Disk Utility

I run Catalina and when I run First Aid on Disk Utility App, it returns warning: xf : INO_EXT_TYPE_DSTREAM : found unexpected dstream associated with non-regular file and warning: found orphan ...
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Could not validate sizes – Operation not permitted. The operation couldn’t be completed. (OSStatus error 1.)

I am following instructions for creating a Bootable drive (generously provided in this answer by a gentleman named David Anderson). I am using a 16GB SD card to try to create a Bootable drive from my ...
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Can't remap partitions to one main disk even in macOS Recovery Mode

I did bootcamp but it failed between so it end up making another volume which cannot be revert back to the mother disk and i tried but i couldn't (-minus) sign is not appearing on microsoft disk which ...
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Disk Utility restore to different partitions on same drive

Doing a restore with Disk Utility seems to be the best way to copy a Time-Machine backup to another disk. When I do this, it erases the drive first. This keeps me from adding a second TM backup to the ...
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Mac OS failure cannot fromat SSD drive

i have a macOS stuck on loading screen tried everything , i installed a bootable usb with yosmite but whenever i try to erase ssd drive i got the following error : erase disk failed error : unable to ...
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Reading HFS standard and MFS on Catalina

During the lockdown I decided to use some of my time to backup all the all Mac disks and floppies I have at home so I can store them in a somewhat more readable format that SyQuest cartridges and MFS ...
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Problems with Disk Utility created RAID 1

I have two external Seagate 5TB disk drives that are powered over the USB connection to my 2017 iMac. They are both partitioned the same: volume "Time Machine 1" for my iMac volume "Time Machine 2" ...
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Error: -69888: Couldn't unmount disk

I'm on a Mac OS Catalina trying to wipe a drive via command line. ⚡️ Desktop diskutil list /dev/disk0 (internal, physical): #: TYPE NAME SIZE ...
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Edit Icons for MacOs Startup Manager (Windows, Linux & Macos)

After successfully installed Linux and Windows along with macOS High Sierra on my Macbook Pro 2013 13" with help from Mr. David Anderson (a great contributor here). Now I wonder how to change the ...
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How to recover .photoslibrary files in an erased partition?

I made a mistake in which I erased an external drive with some originals .photoslibrary files that were not backuped. I am using in this moment photorec to retrieve the lost files (appointed as ...

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