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

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7
votes
3answers
971 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 ...
3
votes
5answers
9k 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
0answers
13 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
14 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 ...
1
vote
1answer
974 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
25 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
30 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
76 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. ...
1
vote
2answers
982 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
2answers
67 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
2answers
3k 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
44 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
246 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 ...
2
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 ...
0
votes
0answers
36 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 ...
0
votes
2answers
62 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
60 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 ...
5
votes
3answers
2k 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
votes
2answers
6k 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 ...
14
votes
8answers
29k 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 ...
0
votes
2answers
28 views

I have Installed Windows 7 on an external drive and I want to replace this drive with a larger capacity one. What should I do?

I'm using a Mac Book Pro. I boot my Windows 7 from an external drive. As this drive is getting full, I want to replace it with a bigger one. What should I do to move the Windows 7 from the one old to ...
0
votes
1answer
81 views

How to write fstab rules for an NTFS volume if the volume has no LABEL or UUID?

Basically, I was following this tutorial to enable writing to an NTFS Volume (which works when the Volume has a LABEL or UUID). I have an external USB drive with an NTFS volume that doesn't seem to ...
0
votes
2answers
105 views

How do I install Mavericks onto external HD but from inside VirtualBox

I don't want to lock down my machine for the install. Can I hand it off to a virtual box process? Open virtual box Create virtual Mac Attach Mavericks install pen drive to virtual Mac Attach real ...
0
votes
1answer
152 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 ...
1
vote
1answer
5k 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 ...
1
vote
1answer
30 views

Prevent Mavericks from generating new volume name for external drive

I have an external HDD, formatted exFAT, I believe. Whenever it is re-mounted, it gets assigned a new volume name (e.g., "MyVolume", "MyVolume 1", "MyVolume 2"...). As far as I can tell, this happens ...
0
votes
1answer
88 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 ...
2
votes
2answers
427 views

Formatting USB Disk As EXT3 On Mac

How can I format a USB disk as ext3 using OS X Yosemite? I want to use it on another system that is linux based but I wish to format it first before connecting to the linux system.
1
vote
1answer
24 views

Mount combo (USB/COM) device

I've bought this simple navigator that works fine on PC using the software released by the company but there is no mac version for it. Under mac the navigator was supposed to be mounted as an external ...
0
votes
1answer
380 views

Fixing my external hard drive's partition map

Okay, so something really strange has happened, and it's a doozy, so please bear with me. Problem: I need to fix my hard drive's partition map So let me fill you in on what happened here. I ...
27
votes
2answers
20k views

How do I disable this message: “the disk was not ejected properly”?

Is there any way to disable the "the disk was not ejected properly" message? I use a KVM and need to switch between two systems and have a memory stick that is in the KVM. The problem is that it's ...
1
vote
3answers
132 views

How to synchronize contents of two external drives?

I have two external hard drives (ExFAT formatted) which I need to keep in sync. Specifically, drive B must mirror the contents of drive A and drive A must not be modified. How can I do this without ...
1
vote
0answers
93 views

iTunes library on usb drive connected to NAS not recognized anymore

I have my iTunes library on an external usb drive. I have no problem accessing it when it is plugged directly to my mac. I've recently bought a NAS device which allows me to connect a usb drive to it ...
5
votes
10answers
64k 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
35 views

Using Console.app - how to find disk force eject logs?

I've been having a number of issues with external disks force unmounting (most often while waking from sleep). Where can I look in Console.app to track down the potential issue?
3
votes
3answers
16k views

Access disk attached to Airport Extreme over internet?

According to Apple's product page, the Airport Extreme... "...can turn your external USB hard drive into a secure drive you can share across your Wi‑Fi network and access securely over the ...
2
votes
0answers
90 views

fsck not working to fix corrupted external drive

I am using an early 2011 MacBook Pro with the Mavericks OS. I've researched a similar issue on an internal drive but As far as I know, being in Single User mode won't help my situation. One of my ...
1
vote
1answer
811 views

External HD with a Filevault 1 home directory, readable from Lion?

I have the HD from my old Snow Leopard Mac containing my old home directory encrypted with Filevault 1. Can I mount this HD in a USB enclosure as an external volume on a new Mac running Lion, and ...
0
votes
2answers
58 views

Online backup strategy or software for computer and external drive

I'm looking for an online backup strategy for my photos but there's something that none of the systems I've looked at addresses... I keep my most recent photos on my mac and move them off to an ...
1
vote
1answer
111 views

How to reset a Seagate FreeAgent Go Mac External Hard drive to use with a new Mac?

I have a 500 GB external hard drive that I want to use with my new Mac (OS X Yosemite). I simply want to clear the external drive of everything that was on my old Mac (I don't want to transfer any ...
0
votes
0answers
21 views

folder became bigger when copy from one external disk to another

I have 2 external disks connected to OSX Yosemite, the new disk is 4Tb and old disk is 2TB, I tried to copy all stuff from old disk to new disk using rsync: rsync -a /old_disk /new_disk The old ...
15
votes
2answers
6k views

Can you make OSX mount just certain partitions when you connect an external HDD?

I have an external HDD with 4 partitions. My question is the following: is there a way of telling the OS to mount just two of them (One FAT and one HFS+) when I connect the HDD? It is rather annoying ...
2
votes
1answer
192 views

Automatically unmount external drives when shutting down OSX?

I'm running OSX 10.10 Yosemite. When I try to shut it down, if I have an external drive connected the shutdown stalls on a black screen with the mouse pointer visible, and movable. This happens even ...
0
votes
1answer
120 views

Automatically move all files from within a folder to external SSD, When external SSD is connected

I have a GoPro 4 which ends up creating very large high quality videos, when connected through USB the Gopro importer app automatically copies the files to a subfolder named by todays date in ...
0
votes
1answer
220 views

Disk Utility can't repair external hard drive, tried fsck whats the next step?

When I try and repair my external hard drives (I have two corrupt now some how both I think from improperly ejecting from the same machine), I get this message: Disk Utility can’t repair this ...
2
votes
2answers
1k views

Shortcut to eject all external hard drives but not MobileBackups

So far I've been using the following AppleScript to eject all external drives at once conveniently using a shortcut: tell application "Finder" eject (every disk) end tell This script is is ...
1
vote
0answers
57 views

CoreStorage encryption fails - Is it possible to have multiple encrypted partitions on an external drive?

I have a 2TB WD MyBook Studio drive connected via FireWire to my MBP. What I would like to have is two encrypted partitions. So what I do: Disk Utility > Partition and then right click on each ...
1
vote
1answer
98 views

screensaver causes error “share does not exist on the server” to endless loop

I've been trying to learn to automate my home Mac environment with Applescript. I've had some success, but am running into seemingly inconsistent and troublesome errors. In order to diagnose the ...
0
votes
0answers
294 views

WD Passport 1TB USB 3.0 Time Machine external HD not being recognized on Yosemite

After upgrading to Yosemite my external HD is not being recognized. My HD is a WD My Passport 1TB USB 3.0 and I have a MacBook Pro Late 2011 It does not show on Finder It does not show on System ...
1
vote
0answers
40 views

WD Drive Cannot be Repaired but program still running

I have an external hard drive that I use to run my iTunes, iPhoto library and store various other documents. Recently, it stopped connecting to my MacBook Pro. I can only see my WD Ultra external ...