Questions tagged [hard-drive]

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

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Large difference in reported free disk space

I have a strange discrepancy in the amount of free disk space that's being reported. The finder says: My iStat Menus says: Which is the same as df -h reports: remco@Prosperpine ~ $ df -h ...
6
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4answers
26k views

Recovering data off of a dead hard drive

My hard drive died in my macbook and it no longer will start up. It will not mount in an external enclosure but disk utility is still reading that the hard drive is there, and I tried to repair disk ...
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5answers
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Paragon NTFS for Mac 14 doesn't see NTFS disk (OS X 10.11 El Capitan)

I upgraded my Yosemite to El Capitan few days ago. Also recently Paragon sent me an e-mail with an offer of free upgrade from version 12 to 14. Since I bought ver. 12, I decided to install version 14. ...
6
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2answers
18k views

Error-“Unable to write to the last block of the device.”

I am trying to setup a new hard drive into my Macbook Pro. However, I keep getting an error in disk utility that states, "Unable to write to the last block of the device." I saw another person was ...
6
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2answers
1k views

Prevent Spotlight from indexing future hard drives

Using Mavericks, how can I prevent Spotlight from indexing all drives except my primary internal drive? In my work, I connect dozens of new drives every week, and I do not want the .Spotlight-V100 ...
6
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3answers
21k views

How to fix “Error: -5341: MediaKit reports partition (map) too small” after upgrading to a larger hard disk?

I recently bought a new SSD drive, as my stored data amounts outgrew the old one a little bit. After copying all data using dd if=/dev/disk0 of=/dev/disk1, I want to enlarge my system partition, but ...
6
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2answers
5k views

Aperture: Library over multiple Hard Drives

I switched to Aperture some time ago. And right now, the moment has come that I want to save some space on my internal hard drive. What I found on the Apple website is this: I can't seem to find this ...
6
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3answers
7k views

MediaKit reports not enough space on device for requested operation

I have a 4TB WD external hard disk that is partitioned as follows: /dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: ...
6
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1answer
2k views

How can I do a fresh install of OSX Mountain Lion onto my SSD for my Macbook?

My macbook is sluggish and has so much stuff that I don't use anymore and just want to start over from scratch basically. I did a time machine backup just in case something goes wrong. New blank SSD ...
6
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3answers
7k views

Best file system for an external hard drive sharing between OS X and Windows

I would like to buy an external hard drive that I'll use on Mac OS X and on Windows, but I don't know the best file system for it (reading and writing on the both system). I know I can used FAT32 ...
6
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1answer
2k views

How can I recover files from a failing hard drive?

I am in the process of trying to recover files from a failed MacBook hard drive. While I've already replaced the drive in the machine itself and installed a fresh copy of OS X, I have the old drive in ...
6
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1answer
473 views

Is it safe to unplug a drive while MacBook is asleep? (i.e., does sleep unmount drives?)

Is it safe to unplug a drive while MacBook is asleep? (i.e., does sleep unmount drives?) I think probably not, at least if a file operation was running when you put the computer to sleep, I guess it ...
6
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1answer
4k views

can i delete “developer-old” folder?

I've got a "developer-old" folder besides for my "developer" folder. "developer-old" contains "headers", "SDKs", etc folders. It'd be nice to delete this folder bc it takes up 10GB. Can I?
6
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2answers
404 views

How do I force Time Machine to back up to a USB HDD, instead of a .sparsebundle on that USB HDD?

I use an iMac as an external monitor for my MacBook pro (OS X 11.6), over a thunderbolt cable. I usually have a USB 3 hard drive attached to my MacBook pro as a Time Machine backup. Last week I ...
6
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2answers
3k views

Unable to format pendrive, diskutil error

When I insert my USB Pendrive in my iMac i see this message: I tried to format it both with DiskUtility and with diskutil command in terminal but I get this error: iMac:~ User$ diskutil eraseVolume ...
6
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2answers
7k views

Repair an exFAT drive on Mac OS X after it's been improperly disconnected

Very often an exFAT external disk stops appearing in OS X. It doesn't appear in Disk Utility, Finder, diskutil list or About this Mac/System Report/USB. The only way I have found to fix it is to boot ...
6
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3answers
12k views

I want to install Windows 7 on an external drive

I've read two articles about booting Windows from external drives as opposed to a stock Bootcamp install. Here are the links: http://kevtg-compuproductive.tumblr.com/ http://bleeptobleep.blogspot.fr/...
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1answer
11k views

Unable to erase, reformat, or repartition USB drive

This afternoon I attempted to mount a .iso of Windows 7 to a bootable USB drive. It's about 370GiB, so more than enough to store it. I did the following to get myself into this mess. Note,/sda/disk2 ...
5
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3answers
330 views

Time Machine External Drive

What factors are important when selecting an external hard drive for time machine backups?
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4answers
59k views

Sometimes Mac doesn't recognise my external hard drive

I have a Western Digital My Passport Ultra 1 TB external hard drive that is formatted FAT32 and a 16 GB Silicon Power USB thumb drive and both of them uses USB3 but my MacBook Pro sometimes doesn't ...
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3answers
5k views

My external disk made a clicking noise. What should I do?

I have a USB2+Firewire external disk that made a clicking noise, and Mac OS X immediately unmounted it and put up a dialog box saying that a peripheral is misbehaving. The disk made a clicking noise ...
5
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1answer
2k views

External Hard disk 500 GB free but can't copy 8 GB data

I have WD external hard disk, which was working fine. Its MS-DOS formatted. I have downloaded a file in .mkv, which works fine, and isn't corrupted. Upon copying the 8 gb file, it says "The file is ...
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5answers
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How do I temporarily relocate my Time Machine backup files

I have a 1TB WD My Passport external hard drive that I've been using for Time Machine backups. I recently had an issue with it where I can't save to it anymore because it was corrupted. The way to fix ...
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4answers
4k views

Is it okay to install OS X on an external drive, and then install that drive as an internal drive?

My internal drive is suffering hardware failure, so I bought OS X Snow Leopard (to upgrade my iMac from Leopard), a new drive, and a cheap external USB 2.0 enclosure. My plan is to install a clean ...
5
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2answers
66k views

Cannot Unmount Mac OS X Base System Disk

My Mac running Lion was being slow, so I was decided to reinstall OS X. I don't have any Time Machine backups. Everything went file, but in the middle of the installation, it got stuck, and later the ...
5
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2answers
678 views

What process is accessing the hard drive?

I can hear the hard drive chugging away when it should be idle. Some process is writing/reading from it in semi-random bursts, let's say once every second. Very annoying and wasteful. I tried ...
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2answers
3k views

Can I use an Advanced Format drive in a Late 2010 13" MacBook Pro?

I have the 13" Late 2010 MacBook Pro, and the 250 GB Hard Drive is way to small, so I'm looking to get a bigger one. I wanted to upgrade to a 750 GB WD Scorpio Blue (WD7500BPVT), but I've read ...
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4answers
3k views

iMac won’t boot up from internal drive but can boot from external drive, but internal drive can boot other Macs

I am seeking suggestions on what may be going in with an iMac I am currently troubleshooting, as it’s displaying behaviour I do not recall seeing before. Short story This iMac refuses to boot up. It ...
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3answers
4k views

Recover deleted Encrypted OS X Extended volume

I accidentally formatted an external 1TB HD to FAT file system using Disk Utility in Mac OS. The disk used to be HFS+ encrypted. Encryption was done when I created the OS X Extended partition, not ...
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2answers
92k views

Hard drive died, how do I get the OS X on new hard drive? [duplicate]

I have a huge problem. My hard disk seems to be dead. I did a lot of things but I guess it's really gone. The thing is that I don't have CDs o DVDs of the OS X Lion (it's a macbook pro A1278 bought in ...
5
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2answers
6k views

How can I tell which volume the operating system is on?

I'll admit that I am kind of rolling multiple questions in to one here so please forgive me and try not to knock me for it. I am new to Mac but I'm trying to port one of my Java applications to OS X. ...
5
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1answer
9k views

Good application for detecting state (health) of SSD disk?

On my MacBook, I want to see the health status of my SSD. How can I do this? Which app to use?
5
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1answer
18k views

Can't launch or uninstall Disk Drill

I've got these two icons in my menu bar, which appear to be an application called Disk Drill (see red rectangle): Basically, I want to uninstall Disk Drill and have these two icons removed from my ...
5
votes
4answers
11k views

Macbook's harddrive free space changes seemingly randomly

Over the last few days my hard drive has gone from a few GB of free space, to zero KB, absolutely full. I then deleted about 1GB of files, and now the free space has gone down to 640MB, and then went ...
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2answers
2k views

APFS partition inaccessible, container missing

I'm running macOS Mojave on a late-2015 4k 21.5" iMac. I have lost access to my internal hard drive, but I can use my iMac by running macOS from an external drive or through recovery mode. When I ...
5
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3answers
12k views

iMac 27" late 2012 SSD upgrade

I'm the proud owner of an 27-inch iMac 2012 with high-end configuration, but the 1TB fusion drive keeps being the bottleneck. As my warranty has expired now, I want to upgrade the 128GB SSD to a ...
5
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2answers
62k views

Can Recovery Mode install OS X onto a blank SSD?

I want to install a new Solid State Drive (SSD) into the Mac. Can I just build in the SSD, start the MacBook in Recovery Mode and install OS X from there on? After reading a lot on the internet I ...
5
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1answer
23k views

VirtualBox VERR_NOT_SUPPORTED opening Windows 10 partition/vmdk

I'm trying to virtualize my physical Boot Camp partition, so I can do small Windows tasks from Mac without restarting. I followed mostly this tutorial but also read others. But now when I try to ...
5
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1answer
10k views

Reformat exFat with specific Device Block Size and Cluster Size

I have an 512 GB SSD on my MacBook Retina with one of the volumes disks0s6 formatted with exFat to use it on both Mac and Windows. diskutil info disk0s6: Device Identifier: disk0s6 ...
5
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1answer
679 views

How can I track the progress of dd after I've already started it?

I'm migrating my HDD to an external hard drive so that I can do a clean install of macOS Mojave. I'm using dd if=/dev/disk02 of=/dev/disk15s2 to accomplish the task. disk02 is the Macintosh HD (SATA-...
5
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4answers
23k views

How to upgrade firmware and reperform a Samsung 840 Evo on a Mac

i got one of these Samsung 840 Evo Basic 500GB on an iMac (used externally in a TB case - standalone, not Fusion). I know there's a firmware update out which is already available for Mac users too ...
5
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2answers
13k views

Is there room for two drives in the 27" 2012 iMac?

I've looked around a bit, but can't find anybody saying whether there is room in the new slim iMac for an extra internal SSD. I used this tutorial about a year ago to add an additional SSD to my Mid ...
5
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2answers
44k views

Powerful external hard disk health checker on Mac?

Is there any powerful program in Mac to check the health status - mainly bad sectors - of an external (USB) hard disk, and to recover them?
5
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3answers
10k views

Clone the Windows partition with Carbon Copy Cloner?

I have bought a new Hard Drive and I want to switch from my old disk to my new one. Time machine will do the job for my Mac partition, but not the Windows partition I guess. So I'm looking for way to ...
5
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2answers
121 views

What are the risks with low disk space on a Mac?

I've seen some suggestions about not allowing free disk space to go critically low or ... to have no less than about 15% of your drive's capacity free ... Currently, I've been silencing the "disk ...
5
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1answer
5k views

Encrypt external HDD without erasing data on High Sierra?

I'm running Filevault on my internal hard drive, but I realized that I never encrypted my external drive. Currently it's running Mac OS Extended (Journaled) and I'm not seeing any encrypt options ...
5
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1answer
9k views

Resizing dual boot partitions in Yosemite

I have a dual boot Macbook Air with Yosemite and Ubuntu. I would like more space on my Ubuntu partition and need to therefore reduce the size of the Mac partition. I assume this will cause some damage ...
5
votes
1answer
375 views

How do I get rid of errors for disconnected networked drives?

Every time I log into OSX 10.9.4 (and several slightly older versions since I've been updating) I get several pop-ups asking me to connect to a remote/networked drive that I've previously configured, ...
5
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2answers
9k views

Why do I get back more disk space when I restart my Macbook on Mountain Lion 10.8.3?

I frequently run low on disk space on my laptop. When I'm down to my last gig or so on my 256MB SSD (as reported by iStat Menu), I'll get various warnings from the OS and apps saying that I'm running ...
5
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1answer
11k views

What kind of encryption does Mac OS X Extended (Journaled, Encrptyed) use?

Since my primary hard disk is encrypted with FileVault2, I also wanted my backup drive to be encrypted. I plugged in my external drive, brought up Disk Utility, and went to erase/format the disk. I ...