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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Only see 70gb of space even though I have 250 gb hard disk Macbook air

recently I messed around with my disk utility I am not sure what I did, but after doing whatever it is that I did I am only seeing 69.14 gb of space out of 250gb. Here is the image I tried to go into ...
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Why won't Catalina install from Internet Recovery?

I have a mid-2014 15" MBP which is currently unable to install any version of macOS. I had 10.14.x running and decided to completely wipe the laptop clean. Instead of upgrading, I booted into ...
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How i can add all space from first container to second APFS?

I have 2 containers and want all space from first container add to second container or in Volume Mohave ssd. Mojave 10.14.6
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This container can’t be split, because the resulting containers would be too small

I understand this question has been asked before, but my situation is a bit different. I have done the usual, I've tried diskutil cs list then diskutil apfs resizeContainer disk0s2 370GiB (from ...
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359 views

Free up disk space during Catalina update [duplicate]

I tried updating to Catalina, but it got stuck on not having enough disk space. It says I have to quit the installer, select a start disk and boot from that, but my system's drive is not in the list ...
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Bootcamp partition lost - How to reclaim space back?

Trying to reclaim the 100GB I gave to Windows BootCamp a while ago. Problem is, going through the steps to get it back (BCA process) and I realised that my Mac no longer realises it had a partition ...
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246 views

Two volumes in Disk Utility? (macOS Catalina 10.15) [duplicate]

My 2014 MacBook Air just recently updated to macOS Catalina 10.15 today. After the update I did a routine check on what's new & in the Disk Utility app something caught my eye for the volumes... ...
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25 views

System keeps rebooting

I have a 2010 macbook pro with osx 10.13. It keeps restarting with the grey screen saying "your computer restarted because of a problem" In recovery mode, Disk utility First Aid found corruption. ...
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grow apfs container into an expanded iscsi disk?

I use a Synology NAS along with an iSCSI volume from my Mac on OS X mojave. I upped the physical disk sizes in my NAS, and using the NAS iscsi Utility, I upped the iscsi LUN from 6.44 tb to 9.66 tb. ...
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Cannot merge partitions and remove bootcamp

I'm trying to uninstall bootcamp and merge the partitions. I've run the following which seems to have removed the volume but I don't think they are merged. diskutil apfs deleteContainer [diskid] ...
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Output of diskutil info: dlopen(…): code signature in (…) not valid for use in process

When I run diskutil info on an external drive, the output contains errors that make me wonder if I need to be concerned about the security, or at least the stability of my computer: 2019-10-03 11:03:...
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Password recovered from Keychain fails to decrypt volume

I lost my Mac computer and recovered some items from a backup. One was an a disk image with extension .dmg, with 400 MB, encrypted with Disk Utility, and last changed on 8th November 2018. The ...
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Disk Utility - Secure Erase is not working in terminal

I'm trying to securely erase my SSD by using diskutil in terminal in the recovery mode (restart --> hold down command+R --> terminal) I first use diskutil list to find the disk name, which is disk0: ...
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TimeMachine external HDD shows up in Terminal diskutil list but not in Disk Utility

The external HDD I use for my TimeMachine backup is suddenly not mounting automatically or even showing up in Disk Utility. But when I try diskutil list in Terminal it seems to be there. Any hints ...
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Second drive inaccessible from OS but accessible in Recovery mode (which shows no issue)

I have a iMac 2008 with 2 drives. Main drive is an SSD in the DVD bay and second drive 3,5" HHD in the original iMac disk bay. After a reboot before which everything was working just fine second drive ...
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Large difference between free space reported by disk utility and Apple [duplicate]

I tried deleting tm snapshots already. I had five of them. Three deleted and I cannot seem to delete the remaining two. Terminal tells me they are deleted, but I still see them when I list.
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Issues with internal flash storage drive, time machine and spotlight

Anyone experienced similar issues that my internal drive, where OS X is installed is looking like this (About This Mac --> Storage). Also Finder can not see second partition of the drive. On top of ...
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MacOS Disk Utility, can't create a partition bigger then 1,8gb even when I have 90GB available

I can't create a new partition with disk utility with more then 1,8 gb of storage, I'm guessing this is the problem that is stopping boot camp from running. I have 90GB available, why have the ...
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MacBook Pro Boot camp assistant not enough space on start disk

I'm getting the "not enough space on start disk" when trying to use boot camp-assistant. I have disabled auto time machine and removed the drive. I have used the command sudo tmutil ...
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Boot Camp Assistant: The startup disk cannot be partitioned or restored to a single partition - Trying to install Windows 10

I am trying to install Windows 10 on to my Mac via Boot Camp Assistant, however when I go to try and install it (after downloading the ISO) I get the popup error: The startup disk cannot be ...
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48 views

Accessing unmountable APFS Volume on a disk image

I have run into trouble with APFS. I have an external hard drive (spinning plates) with two partitions. Some time ago one of these partitions stopped being mounted. Neither Disk Utility nor running ...
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45 views

APFS Partition won't expand into adjacent free space under Mojave

I tried to install Linux Mint on an external drive and the installer crashed. I used Gparted to delete the two partitions I had created (one ExFat, the Other Ext4) and rebooted into MacOS Mojave. I ...
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Unable to Erase External Hard Drive - Unable to lookup the APFS Container Reference

I have an external hard drive that I put a linux operating ISO on, but now I am trying to erase the external back into ExFat format to store files on it. When I go into DiskUtil, and try to erase it, ...
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46 views

I accidentally unmounted the External Hard Drive and now I want to re-mount it back

So I had the external 4TB Seagate Expansion Drive, and at one point I end up selecting unmount in Disk Utility when I tried running first aid. Now I wish to mount it again, I tried pressing the ...
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Can't erase hard drive or install new OS onto 2007 iMac

I've tried most things i've read online to try to fix this issues to no avail but I'll explain exactly what's happening. I think I accidentally deleted the EFI partition from my Mac which is the ...
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25 views

Why can't I boot into Mac OS after creating a new Partition with Bootcamp?

I recently created a new partition with Bootcamp Assistant and successfully installed Windows 10. However I can't go back into Mac OS! I have tried holding the Option key while booting up, but it only ...
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BootCamp Missing Operating System TripleBoot After Installing Linux

After installed Linux mint on my Macbook Pro 13″ Retina Display 2012 Windows 10 won't boot, displaying the message "Missing Operating System", I used to be able to access to the partition through "...
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broken EFI / missing space after re-partitioning — using mavericks 10.9.5

I have a few problems with a 2012 era macbook air. the first problem, and i'm not sure how to go about fixing this, is an issue i'm dealing with re: EFI. When i select the hard drive in disk utility ...
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101 views

External SSD Samsung T5 doesn't show up anymore

After I had got a new Samdung T5 external SSD (2 TB) I had formatted it with DiskUtilit, created 3 partitions and could make it work: 1. TimeMachine Backup to partition 1 2. Some important data backup ...
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94 views

Disk Utility Image from “BOOTCAMP” creating empty dmg

I have a very complicated and time consuming Windows 10 install on my mid 2018 Macbook Pro (running 10.14.6 Mojave) Bootcamp partition. Virtualization (including Parallels 15 with Metal support) is ...
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I deleted partition and now I don't see the free space in Disk Utility

so I do have a problem. I create a backup partition, by mistake via Time Machine on my disk. I wanted to deleted 'cause it was above half of my memory. I couldn't, so I type some commands I found on ...
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Bootcamp Assistant couldn’t roll back, How do I merge the volume back to Macintosh HD?

I basically tried to partition my 500GB hard drive to 350GB/150 GB ratio to install windows 10. However since the Bootcamp assistant could not download the windows support files it had to roll back. ...
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SSD Storage Giving Problems

This is actually not a recent thing, a couple of years ago, I temporarily installed Kali Linux on a separate partition on the SSD. When I then deleted Kali Linux, I found out that the partitions never ...
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Adding a new hard drive to RAID1 software RAID fails

I've got a Mac Pro 1.1 running macOS Server 10.6.8 that I want to use as a RAID-Server. I use Disk Utility to run a RAID1 set with two 500GB hard drives. Now adding a third 500GB hard drive to the ...
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trying to Recover an HFS+ Partition The table looks fine but Disk Utility and fsck_hfs failed

I have been trying to recover my partition, on another mac, running Sierra, first I tried the usual, disk utility, and I got a list of "missing thread record" like this Then I moved into TestDisk and ...
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70 views

Cannot partition my Disk: Free space in disk utility much smaller than actual free space

MacOS Mojave 10.14.6 Processor: 2.8 GHt Intel Core i7 Memory 16 GB I want to partition my Disk because I want to try to install Linux-Ubuntu. For this I'm following this tutorial. In Disk utility I ...
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Not Admin | Firmware password error | Recovery Mode wont boot

This probably sounds pretty sketchy, so I’ll preface my question with a brief run down of how I got here... Pretty sure I was hacked... It’s a mid-2012 running High Sierra on a SSD harrdrive. ...
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60 views

Unlocking APFS volume window doesn't accept input

After upgrading macOS to from 10.11 El Capitan to 10.14 Mojave and with that got the main disk converted to APFS (and also encrypted), the computer cannot be booted. Boot screen shows a white ...
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Problems after deleting Bootcamp/little partition left

I use 2014 model iMac and last year I decided to bootcamp it. After a year I start having hard drive usage issues therefore I uninstalled my bootcamp. But the program couldn't uninstall it properly ...
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34 views

External hard drive not mounting

I have an external hard disk drive that's a few years old and lately it's been causing some issues. It started by unexpectedly unmounting, and a few days later it wouldn't mount at all. If I open Disk ...
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Accidentally deleted my encrypted coldstorage drive. Can I recover it somehow? diskutil cs delete MAC

The hard drive connection broke in my macbook pro. I used a sata to usb cable and put it on the mac, it still didnt boot. I went into Recovery. I believe the drive originally had 3 partitions. One ...
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25 views

error formatting micro sd card on macOS 10.13

I have a micro SD card that has noobs for raspberry pi. I want to install ubuntu to it and to do so need to format the SD card. In Disk Utility i went to erase it and it said Unmounting disk POSIX ...
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fsroot count invalid every time I install High Sierra

MacBook Pro7,1 2TB Crucial SSD High Sierra fsroot count invalid I have a MacBook Pro7,1 (13" Mid-2010). I recently replaced the 512GB hard drive with a 2TB SSD from Crucial memory. I'm trying to ...
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173 views

MacBook Pro disk utility - disk0s2 not mounted

I am trying to erase all data from my laptop and reinstall OS X before I trade in. I erased all data on Macintosh HD but now when I go to reinstall OS X there is no hard drive appearing when prompted ...
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Disk Utility inconsistent size setting

Apple recommends drag&drop to transfer a TM backup.  I suspected dd would be faster, but Disk Utility did not make the partitions the same size. Both were specified as "3 TB" but df -k says one ...
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Cannot erase ~500GB from startup disk

tldr: how do I erase all of the information from my startup disk? Logging into recovery mode and selecting "erase" has no affect on my disk's "free" space. While attempting to diagnose an issue I was ...
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I can’t rename partitions in macOS [duplicate]

I’ve created a thumbdrive with 12 partitions with ASD EFI tests for Macs. I tried renaming the partitions to shorter names with both Finder and Disk utility (so they show up in startup manager ...
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Restore APFS Volume on an external USB disk which does not mount

I work with a MBP 15" (2019 eight core) and an USB HDD partitioned with an APFS encrypted volume. Yesterday, after a regular power off of my MBP, I plugged in my external USB disk and I got an error ...
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88 views

APFS encrypted volume, how to get actual free disk space

I have a APFS volume running macOS Mojava. When I right click on the volume and click Get Info it shows: Which in iteslf is confusing because available says 73.99 GB, but used shows all the disk is ...
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diskutil eraseDisk won't work on Mojave with SSD Samsung 860 EVO Media

I try to format my SSD Samsung EVO on MacBook Pro (13-inch, Mid 2012) Mojave 10.14.6 (18G87) using terminal app but it trows for me this error below: Actually I had same kind of same issue before, ...