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Questions tagged [disk-utility]

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

3
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1answer
29 views

Resize APFS partition in Mojave

I'm attempting to resize a partition that's too small for my needs. Here's the output from diskutil list: ~> diskutil list /dev/disk0 (internal): #: TYPE NAME ...
2
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0answers
31 views

200GB unused, but can't change APFS container size due to minimum requirement

I want to create a partition with a different filesystem but in order to do that I need to resize my APFS container. This container has 292,4 GB used space. Its minimum size is 500,07 GB. This ...
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1answer
41 views

A script to shrink and compress DMG disk images does not seem to work well in my scenario

I'm trying to resize the *.dmg of my MAC OS X installation file because I have only DVD of 4.7 GB and not dual layer disks,at the moment. The problem is that the dmg file is almost 7 GB large and I ...
1
vote
1answer
15 views

Disk Utility hangs after adding a partition with gpt; diskutil still works just fine

I'm trying to shrink my Time Machine partition to make more space for Windows games. The shrink went perfectly, but I was left with a chunk of free space Disk Utility wouldn't let me make a partition ...
1
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1answer
24 views

Is it faster to resize a Time Machine partition, or completely wipe it and back up again from scratch?

I have a ~500GB Time Machine partition I'd like to shrink slightly. My internal source partition is around 400GB. Resizing the partition would be extremely slow, since Disk Utility has to check all ...
1
vote
1answer
37 views

Bootcamp Error: The startup disk cannot be partitioned or restored to a single partition [duplicate]

Earlier today, I tried to install a Boot Camp installation of Windows 10, but there was an error and was removing the partitions it made, but I accidentally closed the window and now I'm stuck with an ...
1
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0answers
32 views

Eject an external disk after improperly disconnecting it

I have a repeatedly run into this problem. On the one hand we could say, "always remember to eject your external drives before removing them". However, it's a matter of fact that I will forget, at ...
2
votes
1answer
37 views

Password protect disk images on Mac from deleting

I know that I can create a password protected dmg file with more folders in it. But I want to know if there's a way through which I can prevent any action on the dmg file itself. Because right now, if ...
4
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0answers
25 views

Can I change a read/write .dmg file to read-only without copying?

I'm working on some automation for ingesting media from camera cards. I am using hdiutil to create a blank disk image, then copy the contents of the camera card onto that disk image. Then I'd love ...
1
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0answers
7 views

Emptying trash interrupted due to low disk space, resulting in “snapshot meta data tree is invalid”

I was silly enough to set a bunch of video encodes running and leave my computer resulting in it running out of disk space. On return to discover it I tried to empty the trash which would have solved ...
2
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4answers
48 views

'The disk you inserted was not readable by this computer' when connecting external hard drives

I have a Synology NAS that has failed and I won't be replacing it. It had two 4TB Western Digital Red hard drives. I've bought a dual hard drive disk reader on Amazon and inserted both hard drives ...
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0answers
18 views

I want to Verify my Disk Utility

What are these untitled items in my Disk Utility under Verify? I want to get my computer as close to basic as possible and I do not have anything that needs backed up.
1
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1answer
123 views

The startup disk cannot be partitioned or restored to a single partition. Windows 10 and Mojave

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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0answers
20 views

Mac Osx require at least 40gb of free space to install Windows with Bootcamp, but I have 70gb free!

I don't understand why my macbook pro don't allow me to partitioning my hard drive to install windows 10.. It advice me that require at least 40gb when I have free around 70gb.. why this happen?! ...
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0answers
41 views

Macintosh HD isn't visible in Disk Utility after trying to update OS X

I have some serious issue with my 15" Macbook Pro late 2013 i7 2.3, and I'm looking for help. I've attached all screenshots that could be helpful and I mention them in my post: https://imgur.com/a/...
0
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1answer
38 views

External drive APFS encryption secure?

I just erased a newly purchased external USB disk using the Disk Utility program and set it to use the file system APFS Encrypted. I entered a strong password and the whole process took about a minute,...
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0answers
47 views

How do I fix hard disk “Error: -69845: File system verify or repair failed”

How can I resolve the Error: -69845: File system verify or repair failed error I'm getting when trying to verify my hard drive? So far these are the steps I've taken: In Terminal I ran: diskutil ...
1
vote
1answer
37 views

What is the character limit for an encrypted USB drive password in Disk Utility?

Is there a character limit for an encryption password when formatting a USB drive as Mac OS Extended (Journaled, Encrypted) in Disk Utility? I was able to use a very long 65-character password but was ...
4
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2answers
73 views

How to make a modified dmg distributable?

Adding files to a dmg and redistribute it Purpose : Adding some settings files to firefox.dmg (mozilla.cfg and policies.json) in the objective of redistributing the modified dmg How the dmg is ...
0
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1answer
23 views

Disk Utility First Aid has no progress bar?

It is on "Checking snapshot 1 of 4" and has been for 30 minutes. There is no progress bar. The drive is a 1TB SATA drive. Should I quit it and start it again or just let it chug?
0
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1answer
61 views

Need help making Windows bootable after installing Linux

I used this questions's answer to install Linux(I installed Mint, however, not Ubuntu) and followed along. I do believe I didn't follow the answer properly, as I still have a placeholder partition ...
0
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1answer
184 views

Yet another corrupted partition table on macOS Mojave

I've seen a couple of posts on here addressing similar issues. Since I don't have in-depth understanding of what went wrong I have to describe what happened in my case and hope you'll help me. Thanks. ...
1
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1answer
40 views

How to mount an external drive read only on the first try

How do you setup the Mac to mount the next disk you connect (through USB for example) to mount read only? My goal is to access a disk without making any changes to it so mounting it read/writing ...
2
votes
2answers
30 views

Cannot reinstall MacOS

I have erased my Mac Mini and now I am presented with the Recovery screen where I can use Disk Utility, Reinstall, etc. Nothing works! Disk Utility claims it cannot unmount the primary HDD, despite ...
0
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0answers
52 views

Can't partition Hard disk anymore

I have a macbook pro 15, late 2013 with Mojave. I'm trying to install bootcamp and windows 10 but EVERYTHING fails. Right now I'm trying to partition the hard-disk manually (because bootcamp fails, I ...
2
votes
2answers
28 views

What Is The Smallest Partition I Can Use Disk Utility to Add?

I'm trying to add a new partition to my Macbook, in order to dual boot with Linux. I have a 250GB drive, with 70GB free. However when I try to use Disk Utility it says "This volume can not be split ...
0
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1answer
26 views

I have a 256GB Macbook Pro but only shows 142gb of storage

I have a 256GB Mac book pro but it only shows that I have 142GB of storage. on a macbook pro 2017 13 inch w/touchbar and my OS X is 10.14 Diskutil List shows the following: /dev/disk0 (internal): #: ...
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0answers
8 views

Having this weird issue where it's like my APFS container that I'm booted into is not mounted? (hackintosh)

I had this partition setup (I only have one SSD) that was something like this. This is not a direct copy of what it looked like, I am doing it from memory: /dev/disk0 (internal, physical): 0: ...
0
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0answers
12 views

After windows partition change, OS X partition goes to NTSF [duplicate]

I'm struggling with lack of OS X system, after i've used ESUS partition tool in Windows (i have High Sierra and Windows installed via bootcamp). Recently i've found that windows partition resize ...
0
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0answers
16 views

High Sierra partition gone after updating windows (bootcamp) [duplicate]

I have High Sierra and Windows 10 installed on my mac (2017). I was working on windows, and atfer shutdown, Windows asked to update. So i've clicked Update and Restart, and after that, Mac restarted, ...
0
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0answers
15 views

How to restore a DMG image of a Windows Volume under Mojave?

With Paragon NTFS for Mac installed Disk Utility allowed me to make an image (compressed but UNencrypted) of a Windows boot drive. Now however, it says it CAN NOT restore the image even with Paragon ...
0
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0answers
34 views

Missing partition won't let me boot, resize or modify it

Hi setting up an iMac I have salvaged, initially when I was erasing the partitions the iMac process dropped out and has left me in a right pickle. Initially it was a fusion drive with Mac OS, ...
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0answers
12 views

How to Get Expanded Synology Raid to be Recognized in Mac OS?

I recently purchased a DS517 to expand my DS1817+ Raid. I went through all the steps on the Synology side to increase the volume size. However, my Mac OS computer is still showing the old size of 53.7 ...
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0answers
8 views

How to repair partition on external Thunderbolt drive that also contains boot partition?

2011 iMac running Sierra (NOT High Sierra) My system has its stock internal drive which I use for general file storage, and a couple of external physical drives, connected via Thunderbolt. One of ...
0
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1answer
35 views

How to properly remove a Linux partition without messing up your drive?

I know this seems like an beginner / dumb question, since an obvious answer would be: Open Disk Utility Remove Linux partition However it seems that it might not be that easy, and that following ...
2
votes
0answers
15 views

HFS external drive aways mount read-only

I am having a problem with an external HFS+ USB drive on a MacBook Pro running High Sierra: When I plug the drive into the computer, it gets automatically mounted as read-only. I have to manually ...
0
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0answers
29 views

Time Machine stopped working

I have an iMac running High Sierra version 10.13.6. Attached via the USB port is a 4 TB HDD with a 1 TB partition I use for backups. I've been using Time Machine with the TimeMachineEditor app for ...
0
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0answers
7 views

2012 Retina MacBook pro can’t detect the drive for OSx installation

The Logic board was sent for graphics card repair, when I installed it back into the computer [2 On startup it just showed the folder with a question mark, on internet recovery, the disk cant be ...
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0answers
33 views

Fixing failed Bootcamp partition using Diskutils

I tried to create a bootcamp partition using the Bootcamp assistant, however when it should have booted into Windows to continue the installation, it failed and ended up taking the majority (>40GB) ...
1
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1answer
21 views

Can't find OXReserved on Disk Utiity

I tried to delete OXReserved in order to delete Bootcamp using Disk Utility in Mojave, but I can't see OXReserved in Disk Utility. Is it the tiny slice on the pie chart next to the Bootcamp slice? Cuz ...
0
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0answers
20 views

Can't mount RAID 0, disks and RAID are online

I had a RAID0 configuration with Mojave in it, tried to update to 10.14.1 and the installation complained with a message about "bless" I installed a fresh MacOSX to an external usb and boot from it, ...
0
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0answers
70 views

External Hard Drive Won't Mount (weird case)

Background I tried using the Disk Creator program to create a bootable flash drive out of my external hard drive. When I was creating this installer, I got an error. It was at this point my external ...
1
vote
1answer
44 views

Formatted an NTFS partition to Mac extended Journaled by mistake

I was creating a bootable Mojave usb for a friend on my Mac and by mistake instead of formatting the USB drive I formatted an NTFS partition on an internal disk to macOS Extended (Journaled). The ...
0
votes
1answer
48 views

Disk ejected but still show up in Disk Utility?

I have this external (USB) drive that can't seem to be disconnected correctly. Whenever I eject the drive, it won't disappear from Disk Utility. Afterwards when the drive gets re-connected again, it ...
0
votes
0answers
21 views

External USB Disk Utility Error when unmounting. POSIX reports: The operation couldn't be completed

I'm having trouble with an external USB. I can save files onto it, but as soon as I unmount it and remount it all the data disappears. I'm suspicious it's corrupted but would like try and fix it ...
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0answers
28 views

OS X disk space recovery after corrupted Bootcamp uninstall

So, I've spent many hours trying to work an issue out with missing disk space after "uninstalling" Bootcamp on my c. 2014 500GB Macbook Air. I've consulted many of the posts on SE, some of which ...
2
votes
0answers
43 views

Hard-Drive Storage size issues after partition Disk Utility

I wanted to create a partition on my iMac for Windows to be able to play Windows games. I have used Disk Utility to create a 20GB partition on my 1,12TB Fusion drive. This caused a problem on my ...
0
votes
1answer
47 views

How to repair Raid 0 Via Terminal

I have 2 @ 4TB drives in an 8tb Raid 0 stripe enclosure that has become corrupted. I have tried to repair the volume via, disk utility, terminal and single user mode with no luck. All 3rd party ...
0
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0answers
75 views

“Couldn't modify partition map” and “MediaKit reports no such partition” when attempting to format partition

I'm trying to create a storage partition on my bootable Linux flash drive (see my other question on Super User). I formatted my provisional partition FAT32 using GParted. The Mac saw it just fine, ...
0
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0answers
120 views

Why do I get this warning everytime I run First Aid: warning: crypto_val: object (oid 0x4): invalid state.major_version (0)

I have a new MacBook Pro 2018 running High Sierra. I just completed Migration Assistance and configured Time Machine backups. Shortly after I complete my first backup, the MacBook rebooted ...