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

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-2
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1answer
18 views

Run OSX on external drive

I use a Surface Pro 3 (will upgrade to the 4 in a few months hopefully) and want to develop iOS applications but I don't want to buy a Mac. I've heard about Hackintosh, but I was wondering: can I ...
1
vote
1answer
8 views

Can I backup a Time Capsule to a HDD drive connected to its USB port?

I have a 2TB Time Capsule and multiple external HDDs. I recently bought a 4TB external drive, now I'd like all my files, in all my HDDs to go to the 4TB drive that is connected through USB to the ...
0
votes
3answers
2k 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
vote
1answer
6k 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 ...
0
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1answer
35 views

Transfer external hard drive Time Machine data to a replacement

My Western Digital external hard drive is full. How do I transfer data to its replacement? I want all the data to be saved to the new external hard drive so Time Machine will continue where it left ...
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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1answer
51 views

NTFS support for Mac

I am long time windows user with who just started using Mac. All my external drives(1 & 2tb 2.5 portable drive ) are formatted in NTFS. But I found that my mac cannot read or write on that. So, ...
1
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1answer
27 views

My MacBook won't recognize my external hard drive (Passport - that I use to back up the Mac!)

I'm not techie at all. But I manage the basics. I've always backed up my MacBook (2009) on a Passport. I just plug it in while the Mac is connected to power source & click the icon & it ...
0
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0answers
54 views

Errors copying files to external drive

I back up my data on NTFS Windows formatted external hard drives (different brand names), cloning each drive to protect against hardware failure. I copy from Mac, Windows, Linux, or Android machines ...
5
votes
6answers
14k 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 ...
0
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0answers
16 views

Backing up data to an NTFS drive

I have a 2TB external hard drive that is about half full of various photos and other things that I use it to hold. Now, I'd like to backup my MacBook Air to it, as I have no more room on my computer. ...
1
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3answers
3k views

Reformat Time Machine backup drive back to an ordinary external hard drive

I have a WDC Passport external drive which I used as a time machine backup. However, I do not want to use it as Time Machine backup anymore, I just want to use it as a regular external hard drive. ...
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
2answers
15k views

How to disable Time Machine for an external hard drive

My wife has a MacBook Pro and two external hard drives; both of which currently contain a Time Machine backup of her MacBook Pro hard drive. Now she wants to "turn off" Time Machine for one of her ...
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 ...
6
votes
11answers
81k 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 ...
0
votes
2answers
7k 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
0answers
1k views

How do I create a new playlist when all the options are greyed out?

I'm running iTunes 11.1.5 under Mavericks 10.9.2. Because I have a very large music collection I keep it on an external drive. I have six recorded lectures I'd like to sync with my iPad. How do I ...
0
votes
2answers
579 views

Implications of using a USB SSD drive to run VM images off

I'm running VMware Fusion on my Apple Macbook Pro (15 inch, Mid 2012, OSX 10.10.2), and have several VM images that are stored on an external USB3 disk (WD Passport). The external disk is fine for ...
0
votes
0answers
31 views

Pixelmator: I cannot open the image from Photos library that is on the external drive

My Photos Library is Inactive when I try to open an image from external drive, as it is on the image below. What should I do to be able work with images from my Photos Library? My photos Library is ...
0
votes
0answers
24 views

Trying to zero out an external drive that shows “unable to write to last block”, keep on getting an I/O error

I'm trying to zero out a drive to use it as a Time Machine backup, firstly tried to format and "unable to write to last block" showed up. I tried to zero it out, but it took a large amount of time, ...
1
vote
2answers
102 views

External HDD cannot be mounted

I really have a problem with my HDD. I was working on it, it was my local HDD installed on a MacBook 2009 but some day my Mac turned off suddenly and it didn't work again. I installed OS X on a new ...
0
votes
1answer
53 views

Backup Disk 'doesn’t contain an EFI system partition'

I have a 750GB Western Digital external HDD which I use for Time Machine backups (MBP, OS 10.10.3). Today I had the need to boot to recovery, which I did from said backup. But I was unsuccessful in ...
5
votes
1answer
5k 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 ...
1
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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 ...
0
votes
1answer
69 views

Apple Time Machine doesn't see my WD My Passport 2 TB using USB 3.0

I have Yosemite 10.10.2 on my Early 2008 24". Time Machine has been backing up to my WD external hard drives for years. I just purchased a new 2TB My Passport using USB 3.0. It's formatted in Mac ...
0
votes
1answer
49 views

How do I repair a hard drive that was being written to while my MacBook Air crashed? (Drive will not mount)

My external backup drive will not mount. I have tried to mount it in Disk Utility via the app and the command prompt but the attempt times out. Any suggestions? I backed up my HD the day before ...
1
vote
2answers
1k 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 ...
1
vote
1answer
285 views

Can one mount a FileVault 2 encrypted drive from Windows?

I encrypted an external drive with FileVault 2. Now it would be great if I could access it from a Windows PC. Is this outright impossible? I found no definitive answer either way.
0
votes
1answer
7k views

External Seagate Hard drive for Mac - Compatibility

I am looking to purchase a Seagate External Hard Drive for my MacBook Air. The products claims it works only with PC (windows), however, I have read multiple places that I can just format the drive ...
0
votes
0answers
37 views

how to mount internal hd after booting with external drive?

I am running macosx 10.6.3 and trying to mount/access the internal hd through diskutility: it does not show up here. I tried this: ...
0
votes
1answer
77 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
vote
2answers
70 views

Simple Low-Cost Network Backup System - Drobo? Alternatives?

I'm hoping to graduate from manually copying important files to multiple external desk or portable drives; affordably. We have 3 Macs and an iPad or two. I have just now learned about Drobo, who as I ...
2
votes
2answers
629 views

Will Time Machine delete old backups for other computers on the same drive?

I have an external 500 GB HDD that I've used for Time Machine backups for three different computers: An old PowerBook G4 A white MacBook My current retina MacBook Pro I now have less than 100 GB ...
1
vote
1answer
155 views

USB 3 not working on Yosemite MacOS 10.10.2

I have a MacBookPro11,3, Intel Core i7, 2,5 GHz, ROM: MBP112.0138.B14 with Yosemite natively installed. I also use FileVault. Here are my problems with external USB 3: One of my FAT32 external hard ...
9
votes
4answers
16k views

How can I write-protect (make read-only) a USB drive in OS X?

I have a USB drive with some archive data on it that I'd like to access from a Mac running Snow Leopard. However, I want to ensure that the data on the drive is preserved and no modifications are made ...
0
votes
1answer
59 views

Treat external HD like internal

Out of necessity I decided to migrate all my personal/work data to a new external hard drive (HFS, encrypted) and left the internal HD for the OS. Because of the fact, that I am now fully reliant on ...
3
votes
2answers
1k views

Drives and dmg's mounting okay but not appearing in the Finder sidebar

Drives and dmg's are mounting okay on my Mac, and I can find them at /Volumes/. However, they aren't appearing in the sidebar in the Finder. What's the best way to start fixing this?
7
votes
3answers
997 views

How to get a mac to wait longer for external disk to wake up upon resuming from sleep?

My Mac has an external disk attached, and I often get "disk not ejected properly" warnings after resuming the computer from sleep. These warnings appear only when the disk has spun down during the ...
1
vote
0answers
28 views

Data spread on two disk, but only one Time Machine backup

I have an MBA with 500GB SSD; However I have 850GB of data; I would like to split the data to something like 300GB in the SSD and 550GB in an external drive; And I would like to have one Time Machine ...
0
votes
0answers
31 views

USB drive causes “OS X Can't Repair The Disk” error repeatedly

I've got a 2.5" 1 TB external that I've used for a couple years now. Initially it was in an OWC enclosure, and then more recently its in a Sabrent enclosure that I bought off of Amazon to get USB 3.0 ...
2
votes
0answers
114 views

Can't erase unmountable external HD

My external HD isn't mounted and can't be repaired by Disk Utility. However, I'm also unable erase the disk: $ diskutil list disk2 /dev/disk2 #: TYPE NAME ...
0
votes
1answer
87 views

External Drive showing only in system profiler

I have had a 1TB Western Digital Ultra external hard drive for nearly year. Out of nowhere it will not show in disk utility but it does show in system profiler. I have a Macbook pro mid 2012 running ...
1
vote
0answers
88 views

Encrypted External Drive Using Apple's Password Generator and Forgot the Password: Can It Be Salvaged?

I have a partition on an external HD with some Time Machine backups. I decided to encrypt the partition using Finder and used Apple's built-in password generator to create the passphrase. ...
0
votes
2answers
99 views

External Drive Won't Show Up Even Though It's in Disk Utility

My disk utility shows that the path is verified when I repair and verify the disk. It shows up fine in disk utility. But even after that, it doesn't show up on my hard drive, either on the left nav ...
1
vote
1answer
85 views

Failed to mount partition of Mac OS Extended (HFS+)

As a matter of fact, my 1 TB External hard disk has three partition: "MAC OS", "NTFS" and "FAT32". All of the partitions worked very well in the past. However, I just discovered that my Mac OS ...
3
votes
4answers
273 views

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 ...
0
votes
2answers
123 views

Can I boot OS X or Windows Boot Camp from an external USB Type-C drive?

Currently I boot OS X and Windows Boot Camp from an external Thunderbolt HDD. LaCie just announced a new external USB-C (USB 3.1) hard drive enclosure. Will I be able to boot OS X or Windows Boot Camp ...
1
vote
1answer
90 views

Suddenly some folders are unreachable from my external hard drive

I have a MacBook Pro and I partitioned the internal SSD into two parts (150GB and 50GB). One of them (the 50 GB part) contains a bootcamp with Windows 8.1. I also have an external hard drive, which is ...
16
votes
8answers
33k 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 ...