Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [hard-drive]

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

5
votes
0answers
73 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
votes
0answers
357 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
votes
0answers
50 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
votes
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 ...
5
votes
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 ...
4
votes
0answers
893 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 ...
4
votes
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
votes
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
votes
0answers
40 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
votes
0answers
41 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
votes
0answers
84 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
votes
0answers
68 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
votes
0answers
556 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
372 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
votes
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
votes
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
votes
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
votes
0answers
133 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
votes
0answers
73 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
votes
0answers
286 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
355 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
votes
0answers
120 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
votes
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 ...
3
votes
0answers
91 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
votes
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
371 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
votes
0answers
71 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
votes
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
405 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
votes
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
273 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
26 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
votes
0answers
73 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
votes
0answers
75 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
399 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
302 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
45 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
782 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
409 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
147 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
57 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
246 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
37 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
622 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 ...
2
votes
0answers
2k views

When restoring disk in DiskUtility.app, showing error “the volume on device dev disk2(source volume) is not of type Apple_HFS or Apple_UFS”

I got a new MacBook and now I’m trying to make an exact copy(clone) of my old Mac to the new Mac. Tried migration assistant, but I found it not reliable since there are still a lot of settings in my ...
2
votes
0answers
22 views

When is the Disk Utility external HD Backup usable as a restore point?

My Mac just had a white screen and disk repairs have been coming back with disk cannot be repaired. I was able to complete a Disk Utility backup to an external hard drive. Is this usable as a ...
2
votes
0answers
292 views

How to expand SD Card disk size (clone smaller SD Card into Larger one)

I am trying to clone the content of my 16GB SD card onto a 64GB SD Card. What I tried first was to just copy all the files from the 16 to the 64 manually. This did not work out, the tool using the ...
2
votes
0answers
28 views

Impossible to initialize a preformatted HD

I bought a preformatted (NTFS) external drive and I want to re-format it with APFS using High Sierra (last upgrade). It is impossible. Whatever is the file system chosen, I always gat an error. What ...
2
votes
0answers
581 views

Macbook Flashing Question Mark backup

I had the unfortunate luck of getting the infamous flashing question mark folder when I booted up my 2012 macbook pro. I have never used timemachine before, so I can't call backups. So i've been ...