Questions tagged [hard-drive]

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

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13 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 Disc 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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24 views

Can I use Time Machine but still be able to access deleted files on my Mac?

Normally I just copy important files on my external HDD or move the big files on there cause I don't have much space on my Mac. However, I want to try Time Machine, because it might be less prone to ...
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MacBook Pro 2009 question mark folder screen - holding down option shows my mouse [duplicate]

My MacBook Pro 2009 (A1278) is having an issue. When I power it up it shows a blinking folder with a question mark. I have tried most of the options that I've seen, none of them showing any signs of ...
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20 views

How to restore an iPhone backup from an external hard drive (windows)

I backed up my phone on itunes and it took a lot of space on my laptop so I put the backup on an external drive, however, not knowing any better, I did not create any symlink. Is there any way I can ...
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Prohibitory sign after using SuperDuper!; MacBook Pro can no longer boot from MacOS X partition

This is going to be a long story, but please bear with me... I'm trying to recover a MacOS X partition that got lost on my Seagate HD. This HD was dual booted using BootCamp with Windows 10. I ...
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23 views

how to transfer files from mac desktop to an external harddrive

I have files on the mac desktop that I want to transfer to a brand new external harddrive. I do not understand why it is not a straight forward matter. I am trying to drag the files I want to transfer ...
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62 views

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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1answer
28 views

Why do system information and du show drastically different numbers

I'm getting messages that I'm running out of disk space. "About this mac" > Storage shows this: Note that it says I have 172 GB available, over a third of the disk. Assuming the messages about ...
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23 views

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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Should I be concerned by this discrepancy in my drive space?

I was planning to delete a user account, and I noticed that it said that I don't have at least 87.1 GB of free disk space, even though my Macintosh HD shows that I have 159.4 GB free. You can see the ...
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1answer
46 views

Stuck in recovery mode and unable to install OS X El Capitan

Hi to anyone able to help with this / having the same problem... I use a 2009 iMac A1224 20" with a SSD, running macOS El Capitan (the shop which installed the SSD also installed El Capitan back in ...
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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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My Mac sees its HDD as only having 1 partition fully taken up by the OS X Base System

I am trying to partition my Mac HDD but the entire HDD has one partition and according to Disk utility the full 1TB is taken up by the OS X Base System. I’ve tried creating more partitions, but it won’...
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MacBook Air Early 2015 SSD > MacBook Pro Early 2013?

BLUF: Can I use the SSD out of a MacBook Air in a MacBook Pro 13? I have a road worn but otherwise fine MacBook Pro 13"/Early 2013. About a year ago it started having issues with crashes and hangs. I ...
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24 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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Help! Have I Messed Up My Fusion Drive?

Last week my late 2012 iMac was running slow and generally not working well, I erased the hard drive to reinstall a fresh copy of Mac OS but somehow messed up the erase (Reading online I think the ...
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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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Certain files greyed out in external HDD

My question is the same as this one from 5 years ago. I have an NTFS external hard drive and certain files on it are greyed out and can't be opened until I run certain commands on the command line. ...
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15 views

Storing Photos library on Time Machine external hard drive with partitioning [duplicate]

I have a Photos library on my Mac, which I want to move to an external hard drive in order to save space on my computer's internal hard drive. I want to move the library to the same drive I use for ...
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21 views

Why is Disk Utility freezing my iMac

I’ve noticed that for awhle now that Disk Utility has been flaky on my iMac: iMac, 2015, Oct, 27” 5K display, Fusion HDD, OS 10.14.5 OTOH, it runs just fine on my MB Pro: MacBook Pro Retina, 2013, ...
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68 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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HFS+ corrupted partition recovery with files offsets

At first, I’ll mention some background details that could help better understand the situation. I used 1TB external drive for data storage, then installed it into Optibay to use it inside MacBook ...
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25 views

Problem with copying files above ~4.2 GB [duplicate]

I am trying to copy video (mp4) files from the solid state drive of my MacBook Pro to both a external hard disk as well as to a SanDisk USB thumb drive. It goes well up to abut 4.1 GB file size, but ...
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29 views

Moving hard drive to another laptop. (similar model)

I am trying to take the hard drive from a Macbook Pro 13-inch Mid 2012 (Model Identifier: MacBookPro9,2) and put this hard drive into a Macbook Pro 13-inch Early 2011 (Model Identifier: MacBookPro8,1)....
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14 views

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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1answer
35 views

How to repair Mactintosh HDD

I have a MacBook Pro 2016 15" with 256GB running macOS High Sierra. When I got the MacBook used, I was able to log in. The MacBook did not have an iCloud account linked so I linked mine up and enabled ...
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2answers
29 views

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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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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27 views

External FileVault encrypted SSD can no longer be mounted

I have an external 4TB SSD, formatted HFS (MacOS Extended, Journaled, encrypted). It has one volume, called "Daten". All of a sudden (after installing 10.14.6 Supplemental Update) the volume no ...
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1answer
102 views

Very slow write performance 30min+ for 2GB - APFS?

Yesterday I have been working with Docker on my MacBook Pro 2012 which runs Mojave and the internal drive has been automatically converted to APFS (seems to be so for startvolumes since Mojave). It ...
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1answer
23 views

Reinstall macOS on Ubuntu MBP

After an update broke my 2015 MBP, I installed Ubuntu 18.04 on it (via USB). Now I want to go back to MacOS. When I boot into recovery mode (cmd+optn+R), I reach the usual menu of options. When I ...
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1answer
36 views

Can I make snapshots of an APFS non-bootable volume?

I have a Samsung FIT external drive with two partitions. One is ExFAT for interchange with Linux Systems. The other partition is APFS (Encrypted). I would like to backup the APFS volume using ...
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1answer
31 views

Best practices for second hard drive on macOS

I’ve a 1TB Mac Mini (Seagate hybrid HD + SSD) but I’m running out of space so I bought a second drive (Samsung 860 EVO 1TB). Since it is as large as the first hard drive I don’t think using fusion ...
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1answer
26 views

MacBook Pro (2011) shows flashing folder at startup but the disk is valid

I have a MacBook Pro (early 2011) and recently the laptop boots to a white screen that flashes a folder with a question mark. I know that means the laptop cannot detect an available startup disk. I ...
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73 views

how can I diagnose the root of the problem when my mac starts freezing for 10 sec each time I switch to an app?

At random points during the day (but not every day), when I've been working quite a bit, MacOs gives me continual freezes for 10-15 sec. This especially happens when I switch between apps and when I ...
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3answers
87 views

Why does Apple not recommend storing your iMovie library on an external drive?

I want to try keeping my iMovie library on an external drive because I use both my Imac (at home) and my MBP (when traveling) to edit my videos. Ideally, I would like to use a SD card so that it ...
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29 views

External Hard Drive freezes macOS and applications

I have an external USB 3 hard drive that I have mounted on my iMac at all times. It serves several functions: Time machine backups for the local iMac Acts as a shared Time Machine destination (my ...
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22 views

Does NVRAM reset enable installing/removing Boot Camp disk?

Two identical Macbooks, from the most recent golden days when all components could be pulled out and in, and the laptops were disaster-ready out of the factory. One has a Boot Camp disk, the other has ...
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1answer
38 views

How to Stop Encrypting process in external hard drive? [duplicate]

I Have an external 8T external hard disk on "encrypting" process since 10 days in my MAC ... and stuck in 27% ... * Seagate with APFS. How can I stop the process and access to my info ?
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1answer
91 views

Partion Samsung T5 on MAc

I have a 1G Samsung T5 that I would like to partition into 2 partitions so I can use one of them for Time Machine backup. However the Partition button in Disk Utilities is always grayed out for the T5 ...
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2answers
40 views

Reboot and Reinstall OSx Lion with Snow Leopard currently installed on my Mac

I have Snow Leopard installed and only have the original disk of Lion that came with the Mini Mac. The Mac won't boot and stalls during the reboot phase. Obviously I don't have a recovery partition ...
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2answers
50 views

Why can't I copy a drive in full to another drive?

I am trying to copy one drive to another (both external) - from a 1TB to an empty 4TB drive. I reformatted the 4TB drive, and here is its information: $ sudo newfs_exfat -N /dev/disk3 Reformatting ...
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1answer
97 views

Restore previous-released OS version(mojave) from catalina public beta

I followed this article. Now I'm on 10.15 Beta (19A512f), which I think it is beta 4, I'm trying to restore a timemachine backup of mojave(10.14.5). My question is do I have to erase my entire disk ...
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Mojave install failure “OSIInstallElement failed, Failure Reason: PKInstallErrorDomain:112”

I'm trying to install Mojave on a brand new 2TB Western Digital external hard drive. I've formatted the drive as APFS. The installer gets partway through, and then fails with macOS could not be ...
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32 views

SSD runs slow only in specific Mac

So I've had a Samsung Evo 840 in my MacBook Pro (13-inch, Early 2011) for years now, but suddenly it became unusably slow, so I went ahead and tried to reinstall macOS. However it seems that it only ...
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1answer
52 views

Missing storage after deleting boot camp partition

Using an iMac 27 inch - Late 2012. I deleted my bootcamp partition and lost 300gb. I didn't let it uninstall properly, rushed and closed the window and thats where all the errors and lost space ...
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1answer
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Is it any different to clone each partition separately VS cloning the entire disk, when clone is meant for data recovery?

As directed by an answer on: How to create an accurate byte-level copy of an SSD to another drive?, I tried to clone my Mac internal disk of 256GB. When I ran diskutil I got this: /dev/disk0 (...