A storage device attached to a computer, but not enclosed within the computer's casing

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2answers
28 views

WD External Drive Automatically Unmounts [on hold]

I am running OS X 10.10 on a Mac Pro and I am connecting a 2TB My Book VelociRaptor Duo to it via Thunderbolt. If I leave the drive formatted in RAID everything works just fine. I need it formatted ...
0
votes
2answers
27 views

How to make a bootable external hard drive and boot up a Mac?

I have an iMac 27 inch, and one summer the room temperature was up to 40C, and I came home that day, and the hard drive was really slow. I then rebooted the machine and it took something like 8 ...
0
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0answers
25 views

External HDD Permissions Issue

I have a new 2TB Western Digital external hard drive (My Passport Ultra) that I want to use for backups. I have it formatted as Mac OS Extended, with 1 Apple Partition Map partition. When I Get Info ...
2
votes
4answers
8k views

“Couldn’t create temporary file.” error when erasing free space on external disk

I was trying to wipe the free space of an external USB 3.0 disk in OS X (Yosemite) disk utility. However, I receive the following error: EDIT: The disk is formatted as GUID / Mac OS Extended ...
1
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1answer
7k views

MacBook Pro won't boot with new hard drive, but a different MacBook Pro will

So here are the details. My friend and I both have 13-inch Mid 2010 MacBook Pro's. Same processor and specs since they were purchased at the same time, but originally had 250 GB hard drives. His hard ...
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0answers
12 views

How can I protect my ext HD files. No password [on hold]

I run a entertainment company, I'm opening a DJ division, I want to give them external HD's with our library on I want to restrict them from copying the data or corrupting it in anyway I want them ...
5
votes
3answers
3k views

External USB drive connected to Airport Extreme doesn't show up in Airport Utility

I have connected an external drive to my Airport Extreme, but it doesn't show up in Finder, and it doesn't show up in the list of drives when I connect to the Airport Utility. The same drive worked ...
0
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2answers
30 views

Backup disk suddenly won't work

Here's the error message I get: "An error occurred while copying files. The problem may be temporary. If the problem persists, use Disk Utility to repair your backup disk." When I try to follow that ...
0
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2answers
2k views

Difference in disk usage MS DOS vs Extended Journaled

Searches on Google and the Apple forums didn't get me any answers or couldn't clarify this for me, hence this question. I have two following external USB hard drives connected to my iMac: "Lacie1" ...
0
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1answer
231 views

External hard drive deep freezing Macs

A quite nice problem: I have an external USB 2.0 harddrive (Lacie Starck with 512GB) which was working fine during the last years. But now everytime I connect it to a Mac 3 seconds later a total crash ...
1
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1answer
18 views

Force Closing Finder, Deleting Files, Recovering Said Files?

Okay. So long story short, I was working in Adobe Premiere yesterday and saved a video to my external hard drive and it ended up being over 1GB. I began to drag it to another folder and Finder ...
0
votes
2answers
14 views

Import photos from external disk into iCloud Photo Library via MacBook Air with not enough HD space

I have 60 GB of photos on an external hard disk. I also have a MacBook Air with an empty iPhoto app. The MacBook has 15 gigs left of HD space. Can I import these photos directly into the iCloud Photo ...
0
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2answers
11k views

external hard drive found only by disk utility, cannot eject or mount

I'm using a Seagate GoFlex that seems to have encountered some trouble. The drive does not appear on the desktop or Finder. I've double checked that Finder > Preferences allows for it to appear in ...
0
votes
1answer
661 views

Should I reformat a disk if Disk Utility asks me to?

I have a FAT32 external disc that was suddenly unmounted as I was using it. When I reconnected it and tried to Repair it in Disk Utility, I got the following messages: Verify and Repair volume ...
1
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0answers
15 views

Problem ejecting external disks

I use a lot of external disks and often I use spotlight to locate files on these disks. Almost always, whenever I do that I am initially unable to eject such a disk. When that happens I issue ...
0
votes
1answer
65 views

Backup/sync Mac photo to external hard drive

It's already making me crazy - as a newbie with Mac. I have problem with backup/sync of my pictures. I would like to backup pictures from Photo library (Photo app) to external HDD but more like sync. ...
3
votes
1answer
2k views

How do I move my iPhoto library to an external drive available through Time Capsule?

Like many others, the number of photos that we are storing these days is growing. Also, we have multiple iPhoto libraries on various computers. So it makes sense to consolidate photos into a ...
5
votes
1answer
6k views

OS X Yosemite attempts to eject external drives after sleep

I have 2 external drives that I use respectively for Time Machine and for all my work. I installed OS X Yosemite today and now every time my iMac goes to sleep (I never turn my macs off) it attempts ...
19
votes
9answers
41k views

The volume can't be ejected because it's currently in use

After working with an external USB backup disk I want to cleanly unmount the drive. When pressing the 'eject' button Finder warns me with the message: "The volume can't be ejected because it's ...
1
vote
2answers
2k views

My NTFS formatted external Toshiba drive is unreadable since update to Yosemite OS X 10.10.1

My portable external Toshiba hard drive is now unreadable on my MacBook Pro early 2008 aluminum computer. Since updating to Yosemite OS X 10.10.1, I cannot recover my files stored as Time Machine ...
0
votes
1answer
54 views

How can I use my SanDisk Connect Wireless Flash Drive with my 12" MacBook

I can access the drive on my iPhone, iPad and Android. I am having trouble figuring out how to get it to work with my Mac I am using Yosemite and I've done the latest firmware update on the drive
0
votes
0answers
36 views

Why is my external harddrive causing a kernel panic?

I've got a external harddrive that causes a kernel panic about a minute after connecting it to my MacBook. I can't work with it because it kernel panics before I can do anything. Is this a hardware ...
0
votes
0answers
16 views

MacBook keeps restarting when my external HD is plugged

This is a problem that happened a few days ago. Before this, I could use my external HD fine. I don't know why it keeps being restarted now. So it's definitely a hardware issue because it happens ...
1
vote
1answer
1k views

Recover Deleted Files on Mac OSX [External NTFS]

I have accidentally deleted some files on my Mac OS X Mavericks. Actually, I was trying to burn an .img file to my flash drive which was located at /dev/disk1 (at the same time I had connected a NTFS ...
2
votes
0answers
32 views

Spotlight says it is indexing an external drive, but actually no search

Spotlight says it is indexing: % mdutil -s /Volumes/TOSHIBA\ EXT /Volumes/TOSHIBA EXT: Indexing enabled. There is a .Spotlight-V100 folder: . ├── Store-V2 │   └── ...
0
votes
1answer
47 views

Time Machine backup from external hard drive stuck in trash

I got a new iMac after my old one died. As my old one was dying I made several Time Machine backups to a 1T G-Drive external. Unfortunately, I must have done it incorrectly because the backups have ...
1
vote
2answers
81 views

How to repair or back up external hard drive when disk utility can't repair it?

I have an external hard-disk with a single Mac OS Extended partition. This disk stopped working a couple of days ago. I tried to repair the external hard drive with disk utility but no luck. The error ...
0
votes
1answer
521 views

External Harddrive is showing in System Information but not Disk Utility

My harddrive crashed last night and since then I have not been able to access it on my Macbook Pro. I've restarted both my computer and hardrive multiple times and I've experienced the same result. It ...
9
votes
12answers
112k views

How can I repair a disk that disk utility says it can't repair this disk?

I have an external hard-disk with a single Mac OS Extended partition. This disk stopped working couple of days ago. I tried to repair the partition with disk utility but no luck. The error message is ...
2
votes
1answer
74 views

exFAT-formatted external drive loses folders

I have an exFAT-formatted 3TB USB drive connected to an iMac running 10.10.3. The system lost power and when it came back up, the drive wouldn't mount. I tried Repair Disk in Disk Utility, and it ...
0
votes
1answer
48 views

USB hard drive permissions

I have a JBOD with a couple of disks in that are mirrored using Disk Utility and have a single partition formatted as HFS+. The purpose of this drive is to hold an iTunes library (sharing to AppleTV) ...
1
vote
2answers
4k views

Error: “couldn't unmount disk” keeps coming up when formatting external HD to eXFat

I have a WD "my Passport" external HD that is currently formatted for a PC and I would like to format it to eXFAT. Every time I hit "erase" in disk util it just comes up with the error "couldn't ...
1
vote
1answer
42 views

How do i get old external drive data onto new external drive (but not also on computer HD) [closed]

EDIT:Let me try again. Sorry guys I'm fairly adept at understanding things in regards to these machines, but I'm by no means a pro. Just looking for some advice. MacBook Pro 2007 ==> Backed up to G ...
-1
votes
1answer
65 views

Is it possible to tell if a Macbook hard drive was booted internally versus externally (usb, firewire, etc.)?

Is it possible to tell from system.log or other logs whether a macbook pro hard drive was booted internally or taken out and booted externally (from USB, for example) ? I'm thinking the "BSD root" or ...
1
vote
1answer
30 views

Software to duplicate external hard drive formatted ExFAT

I have an external hard drive with a 2.9TB ExFAT partition that I keep my photos and other media on. (ExFAT so that I can also see and edit my media on Windows computers.) I just bought a second hard ...
0
votes
4answers
49 views

Extract .zip directly to external hard drive

I have a huge .zip which extracted takes up to 100 GB, and storing that amount of data on my MBP's SSD is not an option. Is there a way to extract a zip file directly to an external hard drive, ...
1
vote
2answers
44 views

how to see all files on external hard drive

I have 200g of content on my 500g External Hard Drive but according to "get info" 471g of space is being used up, what am I not seeing? (To arrive at 200g I manually added all folder sizes using 'get ...
1
vote
1answer
39 views

Can files be exchanged between FAT32 and HFS+ partitioned drive?

I just got a LaCie 1TB external hard drive and I have a MacBook Air with OS X 10.8. I often exchange movie and music files with friends that have PCs. If I were to partition my drive to have 250 ...
1
vote
1answer
46 views

How can i get itunes to backup my iphone with limited disk. I linked the backup dir to an ext drive with space yet still won't backup?

On OSX yosemite, a machine with limited disk space free. In order to backup my iphone, I've linked the ~/Library/Application Support/MobileSync/Backup dir to an external drive. iTunes, correctly ...
2
votes
0answers
137 views

Boot external Windows 8.1 installation on Mac Book Pro Retina 2015 with Yosemite

In the past I’ve been able to run Windows 8.1 on a Mac Book Pro Retina Mid 2012 installed on an external hard drive using WinToUsb. I had OSX Mavericks installed on the internal drive. After turning ...
7
votes
6answers
23k views

How to eject my external drive when my Mac refuses because of Spotlight?

I have plugged an external disk to my Mac. Now, I want to eject it. But my Mac stubbornly refuses and says that an application may be using the disk. I have not launched any app neither opened any ...
1
vote
2answers
117 views

Can't see a specific external hard drive

I was trying to make an NTFS hard drive writable on my macbook. I tried the way mentioned in this link: https://www.maketecheasier.com/write-ntfs-partition-os-x-yosemite/ Now I can make changes on my ...
0
votes
1answer
37 views

Can't Boot from Snow Leopard anymore after having installed mavericks on an external HDD

I have a Macbook Pro running Mac OS X 10.6. I wanted to test how mavericks works on my computer so I downloaded the OS and then I installed on a external USB HDD. Everything work as expected. I can ...
0
votes
1answer
58 views

Importing Photos from Lion to Yosemite Photo Library to External Storage Device

I recently upgraded to Yosemite. Before that, I used to have my library stored on my external hard drive. Now I am panicking because while I was able to move my Yosemite Photo library to my external ...
0
votes
1answer
50 views

Unable to change volume size on WD My Passport Wireless

I have been trying to partion my WD My Passport External harddrive that has already got data on it. All of the guides I see on the internet tell you to resize the current volume to do so. I don't have ...
13
votes
3answers
27k views

Is it possible to install and boot Windows on a Thunderbolt drive?

I know the BIOS emulation of the EFI firmware in Macs does not support booting from FireWire or USB drives, and the EFI version of Windows doesn't seem to be compatible with Apple's EFI ...
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votes
2answers
106 views

Installing Windows on External HD. Other guides to difficult for me

I have a Macbook Pro Retina 13" mid 2014 model. I have 256 GB Disk Space and want to install Windows mainly for gaming but other programs as well but I do not have enough space for my needs. My ...
0
votes
0answers
17 views

External FW800/USB 3.0 drive slows down many system operations on my MBPs

I have experienced this issue for a long time on my old 17" MacBookPro8,3 and now seeing it on a new 15" MacBookPro11,5. Often the drive connected now through USB 3.0 will spin-down to rest state when ...
0
votes
0answers
17 views

Connect to external drive wirelessly, securely and easily

I'm moving from using a laptop as my sole computer (MBP, early 2011) to having two active computers (the MBP and an iMac). Instead of keeping all my data on my MBP, I'd like it all on an external ...
0
votes
2answers
177 views

USB Flash drive not mounting OS X

Some months ago I bought a USB flash drive 16 GB, and I have used it on my Windows machine with no errors or bugs, whatsoever. Since that I need to move some files from my Mac, the flash drive does ...