Questions tagged [hard-drive]

A hard drive is a device for permanent or long-term storage in computers.

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diskutil unmountDisk fails, but lsof shows no processes using the disk

I have a number of external hard drives with multiple partitions each. Since getting a new Macbook Pro and updating to Monterey, running diskutil unmountDisk on two of these HDs fails with an error ...
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Formatting a USB Drive for use on Windows with FAT/exFat

I would like to use my USB stick to transfer files to a Windows machine. Apple documentation says to use FAT or exFAT. However, the Disk Utility only offers APFS variants. (See screenshot.) How do I ...
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Macbook Pro no longer recognized WD external drive after disconnect without ejecting

I've got a Mid 2015 MacBook Pro running Monterey. A WD 1TB My Passport quit being recognized by the system after several times of inadvertently being unplugged without ejecting. It's got a micro usb ...
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Converter card for getting data from a MacBook's(MacBook Pro A1502) SSD hard drive

I am trying to get the data off the dead MacBook's(MacBook Pro A1502) SSD hard drive. From my research, I need an SSD adapter as well as a Converter Card. My SSD adapter is Sintech M.2 NGFF 28Pin SSD ...
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How to reclaim free space for APFS after freeing it on Bootcamp?

I have a fairly old macbook (2016) with a 256Gb hard drive running Catalina 10.15.7 on which I've set up Bootcamp splitting the disk roughly in half at the time. Recently, I've decided to upgrade to ...
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Merge partition on external hard drive

I wanted to format and merge 2 partitions on my external hard drive. I used the command : diskutil erasevolume "Free Space" "" /dev/disks4s4. But now I lost 30go on 2TB and I can'...
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Disk image volume becomes read-only on network drive

I have the following configuration based on this tutorial: Read/write disk image (macOS Extended [Journaled]) created using Disk Utility called Backup.img which resides on a partition of an external ...
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Both Big Sur and Monterey fail to get installed on iMac Late 2015

I have my Late 2015 iMac running on El Capitan. I tried to upgrade it to Big Sur but the update went in a loop, restarting over and over with the Apple logo and the progress bar. Turning off-on did ...
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why does showing "Get Info" for TimeMachine backups.backupdb take hours and hours and give wrong answers

I have a 1TB external (USB 3.0 connection) hard drive holding roughly 700GB of backups in TimeMachine form on a drive formated HFS+ (Mac OS Extended, Journaled). I have another 2TB external set up ...
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How can I tell if someone copied files off of my Internal HDD? [duplicate]

I sent my laptop to replace my old HDD with a new SSD and the person doing the repair kept the HDD with him for many months after putting the SSD in. Is there a way to find out if my files have been ...
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Does downloading to an external drive reduce internal drive read/write cycles?

Just wondering, can read/write cycles on a Macbook's internal SSD be avoided by downloading files from the internet to an external hard drive? I'm not sure how macOS handles this so I'm wondering: ...
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Disk Utility deletes my Windows EFI partition

I am trying to multiboot Windows, Linux and macOS Catalina all installed on the same drive. I can get it working quite easily if macOS is the first OS on the drive. However I have problems if my drive ...
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Connect macbook air 2015 to M1 Macbook air

I want to transfer files from my early 2015 MacBook air to 2020 M1 MacBook air. Connected with the USB-A to USB-C cord. Tried using target disk method through system preferences. 2015 model goes into ...
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Can MACFUSE & SSH be used to mount a locally connected disk or DMG?

I have a website that I maintain mounted locally using macFUSE and SSHFS.  I am wondering whether both or macFUSE alone can mount a locally connected external disk?  This might be useful for ...
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Time Machine only shows 'case-sensitive' after formatting backup drive, fails and asks it to be renamed, leading to other problems

I always thought any *nix-based system like OS X would be case-sensitive, although (just tested to make sure!) on Big Sur I cannot create 'FILE1' and 'file1' in the same folder, so it appears case-...
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How to keep /private/tmp on a RAM drive with Big Sur & Monterrey+?

How do you setup /private/tmp on a RAM drive with Big Sur & Monterrey+? I will explain some of my concerns here below, but my question is simply that. Apparently some have misunderstood and ...
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How to recover unmountable sparsebundles from a Time Machine that "needs internal disk repair"

After trying to recover old family photos and videos from my Time-Machine by repairing and duplicating unmountable sparsebundle-files, it appears that I completely messed up the entire Time-Machine. ...
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Disk Utility error

After creating new partition both NTFS and FAT utilizing disk utility I am getting the "Running operation 2 of 3: Erase “files”…" -> "Operation failed…" error. Nevertheless, ...
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APFS Container Corrupted - by using testDisk

I have a 1 TB drive on a late 2013 mbp. This week it decided to stop booting - was just hanging on the loading screen. I have booted of an SD card and I could see the drive and browse it as read only....
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Boot Camp disappears (Big Sur)

After running Boot Camp Assistant on Big Sur and getting a message about successful merge of my Boot Camp partition, the free space was not added to the macOS partition and is not shown in the Disk ...
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how to fix bad sectors on Kingston USB in MAC OS

I have an issue with my USB drive Kingston 64Go, I used it correctly 2 days ago, but suddenly I can't get access and I have sensible data I don't want to lose. It didn't appear in Finder (can't be ...
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Kernel panic on MacBook air 2010

A friend of mine gave me an old MacBook air from 2010. I've never owned any Apple products or anything, so it was more of test laptop than an actual productivity one. When I first got my hands on it I ...
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Not sufficient permissions to change permissions [duplicate]

I have M1 macbook air and trying to connect to external hd (Seagate 1K9AP6-502) in NTFS. I can read files on the drive, but I can't write. For example nano gives me an error that it's a read-only ...
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Where are the swap files stored?

The swap files used to be stored at /var/vm but when I look there on Catalina, the only thing I find is a sleepimage of approximately 1 GB. Where is the swap stored? Want to know how much of the disk ...
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Disk Utility fails on fsck_apfs: "disk is mounted"

I have an external SSD hard drive connected to my iMac via USB. I accidentally disconnected it while it was mounted, which caused a warning. So I thought it would be prudent to run Disk Utility on the ...
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Missing Bootcamp partition

I use to have a Bootcamp partition, which was about 100Gb, but it has disappeared from the boot options and I am not sure if it still exists on my HD. I am looking to sell this iMac, so I was going to ...
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2 votes
1 answer
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Macintosh HD - Data First aid fail - storage problem

I recently started to have kernel panic errors and my macbook pro 2019 crashed several times, this started to worry me and the first thing which I noticed was that my storage was pretty full (maybe ...
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External Hard Drive Encryption

How to check if external hard drive is encrypted and type of encryption (128,256-bit)?
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Indication of remaining time to format an external HDD

Is there any way to see how long it will still take to format an external hard drive? I used Disk Utility to do so, and it now just tells me "Formatting...", without any indication of the ...
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Hard drive full no matter what I try

I have run into the issue where no matter what files/applications I delete I cannot actually free up any disk space on my Early 2014 Macbook Air with 128GB of SSD storage. The most recent exercise ...
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RAID 0 set disappeared after reboot

MacOS 10.14.6 I ask this before I accidentally cause further trouble and data loss. Created a RAID 0 set using something like diskutil appleRAID create stripe RAID APFS /dev/disk0 /devdisk1 Used for ...
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Time Machine and tmutil - New Mac, inherit or associate backups for attached USB SSD only

Previously I had an iMac backing up using Time Machine to an attached drive "Time Machine Drobo". The backups included the internal "Macintosh HD" volume as well as an external USB ...
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1 vote
1 answer
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Is it possible to replace an iMac Fusion Drive HDD with a bootcamp partition on it with an SSD using migration instead of reinstalling Windows?

On a late-2015 27" iMac, I have an SSD and a 2 TB HDD as a Fusion Drive, and Windows installed on the HDD with bootcamp. I'd like to replace the HDD with a 2 TB SDD. Is it possible to e.g. ...
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3 votes
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Which disk did I boot from?

I have multiple hard drives, each containing various partitions, with various bootable OS X versions on them. This Apple support link, despite the title, Determine which disk started up your Mac, just ...
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2 votes
1 answer
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Potentially corrupted external hard-drive freezing MacBook Pro

I was copying some files from my old Macbook onto my external hard-drive, but at some point the file transfer completely stopped (no progress for 15+ minutes). I decided to stop the file transfer and ...
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Time Machine won't let me use volume

I put an 8TB external drive on a Mac Mini (5,3) running Mojave (10.14.6). This machine is named "Data". I then made a Time Machine Backup on that drive. I made that Mini a backup server, by ...
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Can ExFat files saved in dup mode be opened and readable on a mac running Mojave 10.14.6?

I have a hard drive I am using in a 7 writer DVD duplicating machine. I upload DVD's to the hard drive and then print new copies of the DVD's on the blank DVD's in the 7 writers directly from the HDD. ...
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My 1 TB Hard Drive is getting full. How do I remove a group of documents?

I ran first aid on my 2015 MacBook Pro. I have 1 TB Hard Drive. It successfully ran the first aid; then it showed this: 99.42 GB (4.04 GB purgeable) What does the 4,04 GB purgeable mean? Does this ...
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3 votes
1 answer
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What is the safest way to back up a failing mac hard drive - when some files are more important than others?

I think this is a pretty straight forward question - My hard drive is failing (spinning/rotating platter hard drive). Which of the following options is the safest way to back up the hard drive when ...
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2 votes
1 answer
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Unable To Partition Internal SSD, Trying To Dual Boot with Linux

I am running macOS Big Sur 11.5.2 and I am trying to partition my internal hard drive so I can Dual-Boot PopOS, which is a linux distro. However, I am having problems with partitioning my internal ssd....
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1 answer
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How do I get Disk Inventory access to the entire harddrive?

Following these questions, How can I figure out what's slowly eating my HD space? I got Disk utility However, after downloading it and opening it with the proper privs, it can only account for ...
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1 vote
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4TB drives not working using the same backup process that works with 2TB ones

I've been using an ICY BOX 2-bay RAID box for backing up my work for some years without any problem. I use WD 2Tb 3,5 drives in RAID 1 mode. This year I started using 4TB drives of the same brand. To ...
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10 votes
1 answer
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Can I convert a volume from journaled to non journaled without formatting it?

I have an external hard drive with HFS+ journaled. I have read that for some intrinsic reason, on a Linux machine I will not be able to write on such disk (while I am already able to read from it), as ...
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Can I Format/Erase This Disk?

I purchased an iMac (Catalina) from a guy on FB a few months ago and I recently found some of his old files on an internal Crucial 250GB SSD. I got in touch with him and asked if he needed any of them ...
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3 answers
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Can I boot an old El Capitan harddrive on my M1

So, I have found some data on this question already but haven't been able to find a solution. I had a 2009 MacBook Pro running El Capitan. Something is wrong with the motherboard and it won't boot. It ...
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What format does the internal disk need to be in to to install Big Sur from USB?

I have a 2016 128Gb MacBook Pro and am trying to install Big Sur from a USB. I have deleted both the Macintosh HD and Macintosh HD - data using Disk Utility in recovery mode. In Disk Utility, under ...
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1 vote
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Problem with 1.33 GB hard drive and Disk Utility on Macbook Air 11 2015 a1465

I have a Macbook Air 11 2015 a1465 (Apple A1465 MacBook Air 11 "(Early 2015) (i5-5250U | 4GB | 128SSD)). Deleted the hard drive via Disk Utility. In the process, some unplanned process took place....
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SATA turn into external not detected on finder

I just upgrade my iMac drive from SATA to SSD, so i buy this External Case for SATA and put my old drive into it, the problem is now my imac cannot detect the SATA (turn into external drive) on finder,...
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2 answers
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Thunderbolt 3 versus USB Type‑C external SSD, is there difference for MBP 2019?

I want to purchase an external SSD for MBP 2019, 16" and occasionally run it from an external SSD. I understand that Thunderbolt 3 is much faster in data transfer than regular USB Type‑C, but can ...
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You may not install to this volume because the computer is missing a firmware partition

I have a 13 inch MacBook Pro 2015 model. The Mac had Big Sur installed on the internal SSD. This internal SSD died and thanks to macOS Recovery over the internet (Option-Command-R), I managed to ...
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