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Questions tagged [disk-utility]

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

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Is there a way to copy text from verbose startup sequence macOS High Sierra without Terminal?

I have a mid-2011 Mac mini running High Sierra (I think) that gets ~60% through startup, then simply quits and restarts. Hard drive sounds normal, not hunting. I can see verbose startup sequence on ...
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Format external SSD for transferring files from old PC to mac

So, I bought a SanDisk Extreme Portable SSD thinking I can just plop the old PC files (pictures, schoolwork, old code repositories) onto it and then use the SSD with my new Macbook Pro. Turns out the ...
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How does modern disk image software make accurate images of drives in use?

In the old days, if I wanted to image a drive in Windows, in it needed to be unmounted. Which for the system drive usually meant using a boot disk or rebooting into a "stub" that loaded ...
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diskgenuis shows two partitions sized 450MB on a 500GB disk that is unreadable

I have a 500GB external disk that suddenly stopped working with error "the disk structure is corrupted and unreadable". chkdsk can't continue. IN disk genuis, i see the following: I am ...
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Is it possible to check for bad sectors (read error) for a disk with unknown partitions?

Windows shows that the partition style is GPT, but of course, it does not recognise the partitions because it has Linux partitions. In this case, can I check the disk for physical read errors? I mean ...
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Why I have multiple PFS Volume Macintosh HD - Data and how to deal with it

I own MacBook Pro (15-inch, 2018) with macOS Catalina version 10.15.7 (19H15). The device underwent two liquid split repair services, after each I setup it from what looked to me as factory settings ...
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Does Linux; Does Windows 10? XP? DOS? auto write-to/modify a second drive when connected/mounted?

Have HDDs in vintage computers, and in PVRs etc. And use/have Mac/Linux/Windows machines. On occasion would like to use various drive utilities or SMART reporting tools only available to me on one OS, ...
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DISKPART - change "Boot Disk" parameter

First, I booted Windows Server from disk 0. This disk died and had to be changed, so I converted booting to disk 1. Disks are always mirrored. Now I have the new disk (lets say disk 2) and want to ...
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How to convert HFS+ partition to APFS on Mac?

After struggling with deleting Ubuntu from my Mac alongside with macOS, after deleting EFI volume it became free and unused. How can I convert it to APFS again and include that in my HD storage? Disk ...
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USB flash drive not formatting

I'm currently trying to format a usb drive to be used as a Win10 home boot drive. It has previously been a Fedora workstation and Fedora Server boot drive. I used the DISKPART utility in the windows ...
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Brand new SDcard not formatting (Mac)

Been pulling my hair out on this one. Have a brand new Sandisk 32GB Extreme Plus SDCard. I've been trying to get an image on it to work (for my Raspberry Pi 4). When I bought it, I used balenaEtcher ...
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Unable to use free space shown by diskutil in macOS

I have a 2TB external drive (disk2) that used to have a volume (disk2s4) and two APFS containers (disk2s3 and disk2s2). I removed one of those volumes (500GB disk2s2) thinking I could then resize the ...
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How to restore from a sealed APFS volume when restore fails "because it has a broken seal"

I have been researching this for many hours over the last week. A description of my research effort is at the end of this post. Disk Utility will not restore an APFS volume "because it has a ...
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How to know which drives are chkdsk on startup

I have a PC with 2 internal disks A (2 partitions, bitlocked) and B (1 partition), running Windows 10 v2004 (20H1). When booting with B, a checkdisk is runned at startup. I cancel it before the 8 ...
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How to find all virtio disks on machine?

So, lsscsi can list scsi devices, and nvme list can list nvme devices. What is the equivalent for virtio deivces?
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WDDriveService.exe: eating cpu process & excess Internet usage

WDDriveService.exe is working hard, eating CPU cycles and accessing the Internet for no apparent reason. I’m seeing this on Process Explorer (Sysinternals). (2 pics attached) I’ve read that “...
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MacOS: heavy disk written and read by corespotlightd, how to fix?

I just realize that my ssd health is down to 47%. Check the Activity Monitor on Mac shows that corespotlightd causes 10TB data read and write, and kernel_task causes another 2TB. This is just in less ...
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Recover USB stick geometry

I want to recover an USB stick with linux tools, the damage was caused by an incorrect disconnection of the drive. When the pen drive is connected in linux, there's no mounted fs. I started the "...
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MacOS Catalina: Extend APFS Volume

Following is the result of diskutil list command: I want to extend disk0s2 to take up available space (29GB) since I have 128GB SSD and I have deleted container disk of size 29GB. I tried with disk ...
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Flashing folder when booting up mac

When I'm booting up my macbook pro from 2011, and one day it randomly started showing a flashing folder. I didn't do anything special with it before that, and when I go to disk utility, it shows no ...
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Can't format pendrive whatever I do. It is not read only pendrive [duplicate]

This is a working pendrive. I can write on the main partition, delete from it. Everything possible can be done. Just can't format it. Formatting tools on OS other than Mac show format complete but ...
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Can't format pendrive whatever I do [duplicate]

I really need help. Even if you are not sure of the solution, please suggest something. I really need it. I formatted a pendrive in macOS using disk utility (GUID, macOS extended journaled). Then I ...
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Unable to mount usb drive after format (erasing it) in Catalina - disenter error

I'm trying to create installer on an usb in Catalina (run createinstallmedia command). The first step is to erase the disk. After the usb is erases, I get error "Could not mount disinter" error. Also,...
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MacOS: Modify secure boot T2 settings without Recovery Mode?

I have a Macbook Pro with T2 security chip. I was making a recovery of a Time Machine backup, that somehow failed. Could not boot up after it. Somehow also the Recovery Mode partition is gone. Now I ...
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Do SMART technologies and HDD Surface Scans do the same thing?

There are utilities that check/revive/update the bad block list by systematically reading each block of data on a hard disk and write it while other utilities rely on SMART monitoring. Are they the ...
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Terminal commands for file backup

MacBook Pro late 2012 Having issues with OSX and hard drive Have been told to get the hardware upgraded however in the meantime need to back up files I do plan to take a disk image however as an ...
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Disk times out with I/O Errors while using ddrescue

I am trying to use ddrescue on Ubuntu 19.04 to image a failing external hard disk. There is a primary Windows NTFS partition of 220GB and a secondary Recovery NTFS partition of 14GB. ddrescue is able ...
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OCZ agility 4 is not recognized by Toshiba SSD Tool

I have a working OCZ Agility 4 SSD as system drive. It is working. I want to secure erase it and update its firmware (if available). The problem is that Toshiba/OCZ SSD Utility wont detect/...
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Use Others Hard disk space in my system connected in a network

In my office we are having around 60 systems running with windows 10 with specs: Intel I5 processor,1tb hdd etc. in almost all the systems around 500gb diskspace is idle and no one is utilising now i ...
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Running fsck -fy on my mac throws a container write access error. How do I get around this?

My macbook pro is stuck on the Apple logo on booting and after going through most of the alternatives attempts at fixing it, I've finally come to giving the command fsck -fy a try. I've booted into ...
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Bypassing agreement prompt for DiskUsage.exe?

I am running du.exe on a remote windows machine and do not want to have to access the remote machine's desktop, but the first run of du.exe is requiring an acceptance of the agreement which would ...
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Partition not shown in Disk Utility

My MacBook Pro 2012 has 500 GB of HDD out of which 250 GB were used to install Windows 10. Today, I tried deleting the Windows 10 partition using Boot Camp. In the middle of the deleting process, my ...
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Can't erase external hard drive

I have been trying to wipe my external hard drive (WD My Passport 2626 Media 2TB) using my MacOS Catalina 10.15.2. I have tried each command multiple times, shut my mac off between, changed USB port....
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SD card formatting problems

I'm setting up a Raspberry Pi 4 to run LAKKA (a retro gaming emulation system). I started by copying the image to a 64GB SD card using balenaEtcher, according to some instructions that I found online. ...
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Cannot remove a really small volume on macOS

For some reason I have a really small volume (3.1 KB) that I can't remove (because I can't format or mount). Is there a way to hard delete this stubborn volume? I'm using Catalina last version (10....
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TestDisk has messed up my disk’s partition table and now system won’t boot up

So, my options are very limited, I have a system image but want to use it as very last resort , as I don’t want to lose my files in the partition D of the disk, which is 831Gb. I am running a full ...
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1 answer
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May have messed up my Mac Hard drive...afraid to reboot

I know PCs and hardware in general, but Mac is new to me. I'm teaching my son about Rasberry Pis and told him to use my Mac to reformat an SD card and load the RPi OS onto the SD card. Before he ...
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3 votes
1 answer
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Creating a ram disk on MacOS

I am trying to create a ram disk on MacOS using the following command diskutil erasevolume HFS+ RAM_Disk_512MB `hdiutil attach -nomount ram://16384` This seems to work fine on my desktop but when I ...
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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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Memory card showing I/O device error in diskpart and write protected in disk management

I have a Sandisk 16GB Class 10 Ultra MicroSD UHS-A1 Card with Adapter (SDSQUAR-016G-GO61A) memory card. I installed raspbian (Raspberry Pi OS) on it. It has been a few months since I used my ...
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2 votes
1 answer
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Disk Utility shows different storage usage, recovery could not offer a solution

My MacBook needs to be updated and tells me, that it needs 17GB of available disk space. I deleted many files and "About my Mac" shows that there are 50+GB available. But the message that there is ...
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Options to recover hard drive not shown in diskitil list

My iMac's internal drive failed so I created a bootable external drive from a macOS installer. I used this to run diskutil list, which only shows the external drive (plus some disk images to do with ...
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External disk with encrypted Time Machine partition doesn't eject properly

I'm not sure when this started, maybe when I setup my Time Machine partition to be encrypted or maybe at a particular OS update, but the Time Machine drive no longer ejects properly. I'd love some ...
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All disk Utility Options Disabled

Last day my mac suddenly stooped working, i tried google and by pressing Command + R i landed into menu where globe appear and finally i can see reinstall mac os , disk utility and other options. now ...
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WIndows Server 2016 - Disk and Network columns are greyed on Task Manager

I need to enable columns disk and network on Server 2016 Standard. Screenshot Task Manager
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I am not able to create a new partition in my MacBook

I use a MacBook Pro 13 early 2015 model running macOS Mojave, I have 2 partitions right now,(Mac partition APFS and Boot Camp NTFS) I need to create one more partition to extend my boot camp partition....
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.dmg "Corrupt Image" error

I have created a .dmg of my Pictures library via Disk Utility in Recovery Mode as an emergency back up last night, before erasing my Macintosh HD. I did the same this for Documents and iTunes, all in ...
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EFI partition of the HFS formatted external hard drive won't mount in macOS

General Description of the issue Initial Cause: When I was copying some files to the external drive, the copying operation froze half way. I couldn't eject the drive so I just unplugged it. What ...
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Is there a way I can check which block of disk is really used?

I use df and du to check disk usage of centos,then I get different results from these tools. [root@localhost home]# df -Th Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/...
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How to delete a unaccessible volume on Mac?

Hi do I delete virtual partition on virtualbox? I'm using MacOS Mojave v10.14.3 and once installed virtualbox. I deleted the virtual machine and the app. However, the partition is still there. How ...
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