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Questions tagged [hard-drive]

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

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77 views

How to allow an internal disk to sleep on 10.13

I have an internal disk which is noisy and seldom used. With previous versions of OSX I was able to spin it down by using diskutil eject, but with the latest High Sierra 10.13.4, after a few seconds ...
5
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0answers
378 views

External Hard drives not available after sleep

Not finding this question answered anywhere: Recently upgraded to OS10.12 on my iMac. I have 2 LaCie external hard drives attached via USB. As long as the hard drives are awake (spinning, blue light ...
5
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0answers
51 views

Folder with nothing in it is still using up space

I have a folder with absolutely nothing in it. Zero. I made sure there was no hidden files in it, by typing "defaults write com.apple.finder AppleShowAllFiles YES." into my terminal. There is ...
5
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0answers
2k views

Disable USB Write Caching by default

Is it possible to change OS X's USB filesystem mount behaviour to use the noasync flag to disable write caching? The aim here is to allow USB devices to be safely removed without eject or hdiutil ...
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0answers
1k views

Time Machine and case-sensitive HFS

Time Machine defaults to formatting a new drive to Journaled HFS+ (case-sensitive), if you set up the drive from within Time Machine itself. However, my main drive (the one Time Machine will be ...
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0answers
1k views

No space left on device while 50gb is available

I have a problem with my free space. macOS started to run slow, all apps reports that there is no space of device, while I have a lot. From System Information: Available: 53,51 GB (53 506 232 320 ...
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0answers
75 views

Is my system disk damaged?

Recently I couldn't get my Mac (bought in April - 2009) to boot. The hard disk was quite full and honestly speaking I kept ignoring a number of warnings from OS X to 'free up some space'. I have been ...
4
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0answers
2k views

Can I enable AHCI mode of the SATA controller when booting to Windows on a MacBook with Nvidia chipset?

Is there a way to enable AHCI mode under Windows on a Macbook5,2 (white) on N-Force 730i chipset? If you want to just say 'no', please put it in the comments instead. Thanks. Advanced Host Controller ...
3
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0answers
47 views

Free Space Differs Between DiskUtility, Finder, TimeMachine, and Storage Tab

The actual question: Time machine calculates the size of my backup as 925GB, while diskUtility shows only 858GB is used, while OmniDiskSweeper and GrandPerspective apps show that I am only using ~...
3
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0answers
45 views

How often does the Recovery Volume mount itself?

From my understanding about the new APFS System for macOS High Sierra, the Recovery partition disk1s3 will shortly mount and unmount itself to check for updates in the background. Ive noticed from ...
3
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0answers
87 views

macOS El Captain missing disk space on Fusion drive on iMac, missing contents for GPT partition

I was formatting my Fusion drive of 3 TB and unfortunately it seems 1 TB is missing. I tried to search the answer on this forum and found some relevant answers here but my situation is bit different ...
3
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0answers
76 views

Lost space on hard disk after partitioning

I have a iMac 27" Late 2013 with 3TB Fusion Drive running macOS High Sierra 10.13.3. I want to install Windows 10 through Bootcamp but it always hangs on partitioning the hard disk after I choosing ...
3
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0answers
619 views

Can't mount encrypted HFS volume

I have an external hard drive that is partitioned as a single encrypted HFS+ volume. Here's what's going on: The volume won't mount, Disk Utility won't repair it. diskutil cs list says: However: ...
3
votes
0answers
399 views

As High Sierra does now support 512 byte block sizes, are Samsung 960 NVMe SSD fit in a Macbook pro retina 15 mid-2015 with a Sintech adapter?

I know that there is already some topics on this forum about that but I didn't find a clear answer or if someone have tested it since then. Do MacBooks support NVMe SSD drives via the use of a ...
3
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0answers
2k views

Change APFS Volume to case sensitive

I have a macbook pro with 1TB internal glued flash drive, of which around 600GB are full. I would like to change the volume format from APFS (case insensitive, encrypted) to APFS (case sensitive, ...
3
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0answers
102 views

Directory is not recognised on macOS but works well on Ubuntu and Windows

I have a removable hard drive in NTFS format that is connected to macbook pro through usb. For some reason finder doesn't show one of the directories. First I thought that I removed it by mistake, ...
3
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0answers
3k views

Connecting FAT32 USB Flash Drive on Sierra

I currently own a 32 GB SanDisk flash drive with a FAT32 file system. It's been reliable for years, and on my MacBook Air 2013, I've never had any issues with it. However, I am unable to connect it to ...
3
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0answers
139 views

Recovering Corrupted Partition Table on Time Machine HD

I had a loss of power while I was restoring some data from a Time Machine backup. When I brought the computer back up, my 4TB drive was unusable, with OS X prompting me with a dialog that stated 'The ...
3
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0answers
74 views

How do I prevent OS X from immediately trying to mount unlocked drive / prompt for password?

Due to a hard disconnect of my encrypted external hard drive, it seems my HFS+ partition has become corrupted. Every time I unlock my hard drive, OS X tries to mount it silently in the background and ...
3
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0answers
288 views

Why is my new internal hard drive no longer visible in disk utility on my macbook pro?

I just installed a new WD Blue 750 GB 5400 RPM hard drive into my Mid 2012 MacBook Pro, 13 inch, 2.5 GHz. I attempted to erase/format the drive, but it apparently froze while going through the ...
3
votes
0answers
384 views

SSD not being recognized by ubuntu linux 14.04 and mountain lion machines

My question is as the title suggests. I have extremely important data in my samsung evo SSD that was in my macbook, and I got too overconfident while doing some repairs and didn't back it up..:( So ...
3
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0answers
121 views

How to restore GPT partition after Disk Utility partitioning

I have an external HD with a bootable version of my macOS 10.8.5 system. I recently updated to macOS 10.11.6 and with Disk Utility I wanted to add a partition to my external drive to have a separate ...
3
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0answers
190 views

External USB3 hard disk not mounting (10.11.6)

I have an external USB3 hard disk which used be my Time Machine backup drive. It is not mounting in Finder, but is showing up if I diskutil list. It sounds like it wants to mount - in fact, it sounds ...
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0answers
2k views

macOS Sierra won't install and complains on the disk

After downloading and running the installer, I met with the problem when the installer is asking "Select the disk where you want to install macOS". My default OS X disk which runs El Capitan normally ...
3
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0answers
1k views

How can I repair hdd using Disk Utility if First Aid options (Repair, Verify) are all greyed out?

Would really appreciate any help in fixing an external drive so can use with my Mac again. I had a power loss & when computer rebooted it was unable to see the attached Freecom 320Gig Hdd (FAT32 ...
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0answers
93 views

2 Disks with the same name, how do I delete one?

I initially boot-camped a disk into a windows partition, and wanted to delete it. Initially I thought formatting it to free space would work, but it didn't. I tried again and accidentally formatted it ...
3
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0answers
3k views

Finder reports error code -36 when copying some files

I have a 4.6GB file on my hard drive. Today when I tried to copy it to another machine through network, I got the following error message from Finder halfway through the copy: The Finder can't ...
3
votes
0answers
374 views

Unable to install OS X Lion on Macbook Pro's new internal HDD

The model I'm working with is a Macbook Pro A1278, Early 2011 design. This belongs to a friend, whose current drive, a 500GB SATA III which came with the laptop, was shown to be in poor health, having ...
3
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0answers
72 views

Are repeated FileVault-related harddrive problems a signal that I have greater hard drive problems?

I found a great answer in the forums for an incorrect block count/invalid free block count problem that Disk Utility diagnosed when logged in but couldn't see in Recovery HD mode. Turning off ...
3
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0answers
357 views

Mac Mini 2013 wakes immediately after sleep when USB drive plugged in

I have a 2013 mac mini running osx 10.9.3. I used to be able to send the machine to sleep by going to the apple in the menubar and choosing sleep. After a recent update, when I do this the displays ...
3
votes
0answers
406 views

Raid two external hard-drives with read/write support on Windows & OS X

I have a USB 3 HDD enclosure that currently has two 1TB drives in it. I am looking at buying another external USB 3 HDD drive (not an enclosure). I am currently running the external enclosure with the ...
3
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0answers
1k views

How do I write-protect a partition of a USB drive on OSX that can work cross-platform?

I bought a bunch of USB sticks that I want to give as a gift to friends and clients, with some files on them. I'd like to have the files non-erasable (though I realise they can format the drive, I ...
3
votes
0answers
7k views

Macintosh HD missing after failed catalog btree rebuilding

There is an I/O error in the hard disk in my MacBook Pro running Mountain Lion and as I start it up, a progress bar fills up and then it shuts down on its own. I attempted to recover the files in ...
2
votes
0answers
50 views

Bootcamp - can't save Windows support software, not enough space on available disk

So I keep getting the above error at the following step, Downloading windows support software - OK Partitioning disk - OK Copying windows files - OK Saving windows support software - ERROR I have ...
2
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0answers
36 views

Accidentally deleted disk, how to restore data?

While installing bootcamp I accidentally deleted (clean) the entire disk, now my entire data is gone. I saved it as it was in an image on an external disk. Disk utility won't mount the file and even ...
2
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0answers
476 views

Mid 2015 retina MacBook Pro: Startup slow after SSD Upgrade

I've recently upgraded my Mid 2015 retina MacBook Pro's original 500 GB SSD to a 2 TB Samsung EVO 970 NVMe M.2 coupled with a recent model Sintech SSD adaptor. I am running macOS High Sierra 10.13.6. ...
2
votes
0answers
40 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 ...
2
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0answers
89 views

Recovery Volume mounted in `/Volumes` after checking for updates

From my understanding, with the new APFS system for macOS, the Recovery volume mounts itself briefly when it checks for updates; however the Recovery Volume on my MacBook Air is still mounted in /...
2
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0answers
107 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 ...
2
votes
0answers
446 views

Can't Install Mojave because of file system error: Object map is invalid

I wanted to upgrade macOS High Sierra to Mojave but installation failed with this error: File system verify or repair failed. Using Recovery Mode I tried First Aid from Disk Utility and it failed ...
2
votes
0answers
382 views

Bootcamp stuck at partitioning disk, lost half my disk space

recently I attempted to install windows on a macbook air 13’ mid 2014 256GB using boot camp. It was going well until it got stuck at the partitioning disk step, the blue loading bar was full and my ...
2
votes
0answers
844 views

SuperDuper - how to restore a backup?

I have working, bootable backup on external drive called "SuperDuper" and my internal drive where I want it restored is "Macintosh HD". I just reinstalled MacOS to make sure it is not a software ...
2
votes
0answers
50 views

Creating a Windows installation media using a partitioned hard drive

I have a 1TB external hard drive that I have partitioned 10GB of (WINBOOT). I want to use that 10GB portion as installation media for Windows 10 with Boot Camp Assistant. However, when I go to make ...
2
votes
0answers
811 views

APFS - Other volumes in container problem

I ran into issues with my Macbook Pro running High Sierra 10.13.4. The problem is that Other volumes in container metric are showing over 176 GB of space taken and I am not able to reclaim it back. I ...
2
votes
0answers
503 views

kernel_task writes huge amounts of data to disk (> 1TB) - how to diagnose?

My MacBook (2016 with TouchBar) running macOS 10.13 has a 512GB SSD. Looking at the activity monitor after a couple of weeks of uptime (most of it spent in standby), kernel_task shows 1.43TB (!) of ...
2
votes
0answers
156 views

Pause External Disk Encryption

I have a large external drive that I would like to encrypt using my laptop. Based on the size of the drive, I believe the encryption will take several days. I would really like to be able to unplug ...
2
votes
0answers
59 views

Where have my 125 GB free space gone?

I have a Mac Mini server (macOS Sierra, 10.12.6) with a RAID 1 hard disk, which (when I Screen Share into it) has 716 GB of free space: However, when I connect to the disk via File Sharing from my ...
2
votes
0answers
311 views

Failed to mount HFS drive using diskutil-mount, while /sbin/mount works fine

I have a disk image file (.dmg) with a single partition that points to an HFS+ formatted filesystem, which is observable via device file /dev/diskNs1s1. The record for the single image in the ...
2
votes
0answers
38 views

Format a partition to NT and lose access to partition

I have a 2 TB external drive. It contains two volumes (disk2s1 & disk2s2): ~ diskutil list /dev/disk0 (internal, physical): #: TYPE NAME SIZE ...
2
votes
0answers
661 views

Time Machine won't back-up to external hard drive, any way to fix this?

Problem When I try to make a back-up using time machine, the back-up gets to about ~500 MB and than halts. The following error is given: An error occurred while copying files. The problem may be ...