Questions tagged [external-disk]

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

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17
votes
2answers
8k 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 ...
5
votes
5answers
14k views

Enabling Time Machine for a USB HDD with NTFS

When I've plugged in my USB HDD (WD Passort Elite) for the first time, the system had asked me whether I want to use this HDD as time machine drive. I've chosen smth like 'decide later' and continued ...
60
votes
9answers
67k views

How to view progress when encrypting a disk?

Mountain Lion allows one to encrypt any disk by right-clicking on the disk in the Finder and selecting Encrypt from the contextual menu. Is there anyway to check on the progress of this encryption ...
26
votes
14answers
281k views

How can I repair a disk that Disk Utility says it can't repair?

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 ...
3
votes
1answer
18k 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 have ...
1
vote
3answers
2k views

After update, now I'm getting “Disk not ejected properly” every time my Mac sleeps

Been running El Capitan since it was officially released. Updated to 10.11.4 a few days ago. I have a WD Elements USB 3.0 drive connected to my Mac mini (directly to the rear ports, not via a hub). ...
65
votes
9answers
48k views

How can I skip the Trash when deleting a file?

I frequently connect different external USB hard drives and flash drives to my computer and I would like to facilitate deleting files and regaining disk space from them. If I simply delete the file, ...
23
votes
7answers
91k views

What is the best way to clone a disk between two Macs?

What is the best way to clone a disk between two Macs? I ask this every couple years or so and every time I get the same answer. "Use Carbon Copy Cloner", they say. But the unfortunate fact is that ...
5
votes
1answer
7k views

Is it possible to backup iOS devices to an external drive?

I have a new Mac Pro with a small 256GB SSD. I have a larger 2TB drive that I run backups to. My girlfriend has a MacBook Air with a tiny 128GB SSD. Our problem is our iPhones have 50GB of music, ...
3
votes
1answer
147 views

Using an external HD as my applications folder

I need to install more applications - can I use my external HD (samsung T5) and add an additional applications folder? I have loads of space on it and it the speeds are great.
4
votes
1answer
428 views

Accidentally ejected External drive while downloading file, now having problems reading

I'm hoping someone can help! I recently downloaded a torrent directly onto an external hard drive, (using a 2009 MacBook Pro and 1TB Seagate Expansion portable Drive) somehow during the download the ...
4
votes
2answers
3k views

iTunes videos on a different harddrive?

since the TED HD podcast and iTunesU my iTunes library is getting bigger and bigger and thus free space on my MacBook HD smaller and smaller. I'm getting an iPad2 soon and would like to sync my TV ...
3
votes
1answer
3k views

Partition on HFS+ external drive: “Invalid number of allocation blocks”, file system check exit code 8. Unable to repair, even in recovery mode

As the title says, I'm getting the error "Invalid number of allocation blocks" on a particular HFS+ partition of an external drive. I am unable to repair, even in recovery mode. Log results when I ...
1
vote
1answer
3k views

Installing & running OS X 10.8 Mountain Lion from an external hard drive onto my Snow Leopard Macbook Pro?

I am currently running Mac OS X 10.6.8 Snow Leopard on my late 2010 Macbook Pro. I am perfectly fine with running Snow Leopard at present, but I feel I may be missing out on features or indeed updates ...
99
votes
10answers
142k 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 ...
29
votes
7answers
52k views

External drive does not mount after plug off without eject

I accidentally unplugged my hard drive without properly ejecting it, and now the drive does not mount when plugged in. What can I do to make it work again? I can see the disk in lsusb and diskutil ...
16
votes
6answers
7k views

How do I make Spotlight stop indexing my Backup drive?

I have a 2TB external drive I use for Time Machine. At random intervals, it will decide to spin up and my entire UI freezes until it's finished. This is incredibly annoying. It appears that this is ...
11
votes
1answer
2k views

Disable File System Cache for USB Devices?

Possible Duplicate: Disable “the disk was not ejected properly” message When I have a USB Device like a SD Card, USB Drive or external hard drive, I always need to unmount it, ...
20
votes
7answers
54k views

What format for my external drive allows use with Mac and Windows?

How can I use my external hard drive on Mac OS so I can modify/edit files on both OS's: Mac and Windows? How should I format it?
10
votes
6answers
16k views

How to run Applescript on Disk mount

I want to run an Applescript when I mount a specific disk. It isn't if the script is located on the disk or not, it should just run when OS X mounts the disk. I tried to accomplish this with folder ...
3
votes
2answers
4k views

How to enable NTFS 3G? [duplicate]

It is a common issue Mac users, when you try open NTFS external storage you allowed only read mode. And of course there are some solution. One of them it is NTFS 3G - free alternative. I followed ...
15
votes
4answers
38k 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 ...
4
votes
3answers
5k views

Setting up iPhoto library on external HDD

Is there any way to set iPhoto library on external HDD instead of main HDD. I have a lot of photos and am running out of space on my MBP. I was thinking to achieve it by symlinks or something. It ...
3
votes
2answers
7k views

Which format for external disk for performance?

I'm using OS X Mavericks and just got a new external hard disk. I don't need to share it with a PC (so no need for FAT) but I do want it to have better I/O performance. I'm a bit confused by the ...
3
votes
3answers
18k views

What's the fastest way to get data off Time Capsule and onto an external drive?

I plugged an external drive into Time Capsule using the USB input on the back. Then I used Finder to move data from the Time Capsule's drive to the USB drive. Finder says it'll take over 24 hours to ...
2
votes
3answers
6k views

Automatically launch a program or action when an external drive or disk is connected

I have an external drive. Is it possible to launch a program or perform an action when I connect it or plug it in?
5
votes
2answers
8k views

How can I use my iPod touch as an external disk?

I have a 2nd generation iPod touch (8GB), but I don't know how to make it work as an external disk. I think I saw a checkbox somewhere but I can't find it anymore. I've searched the Web, but the way ...
3
votes
3answers
2k views

External hard drive very slow to load after dropping it and can't be repaired with Disk Utility

Today as I was using my WD HDD, it fell off my corner. After I fixed the thing, I plugged it into the Mac and it loads the HDD but it's very very very very slow. It also does not work sometimes. The ...
3
votes
3answers
2k 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 ...
3
votes
1answer
164 views

USB Hard drive has very small chance of being recognized by Macbook Pro each time it is connected, but works with other machines

I have a WD "My Passport" 1TB external hard drive. It isn't recognized by my Macbook Pro (retina, 2013) or a friend's very similar model, but it works with every other machine I've tried, including ...
2
votes
1answer
828 views

How to create a bootable disk for an older Mac? [duplicate]

The file system on an older Mac mini (early 2009, latest supported OS 10.11) got corrupt, and disk utilities ended up in an infinity verify-can't-repair loop. Thanks to a insightful tip I could mount ...
1
vote
0answers
34 views

Data loss due to lost connection when transferring from Mac 10.14 SSD to External HDD [closed]

I did a cut and paste (Comd+C then Comd+Opt+V) on my Mac 10.14’s Finder to move some .mov files from my internal SSD to my WD My Passport External Harddrive (connected by USB 3.0 with a USB-C to USB ...
1
vote
1answer
3k views

External hard disc not ejected properly

I have a late 2012 Mac mini running OS X 10.8.2. My iTunes library lives on an external Seagate drive, which has its own power supply. When my Mac mini goes to sleep it will frequently wake up with ...
1
vote
1answer
809 views

USB external hard drive is mounted on one MacBook Pro but not another

I have a Hitachi rpm-5400 160GB hard drive in an Orico USB 3.0 hard drive case. The hard drive is formatted as ExFAT. I plugged this drive on my Mid-2012 Non-Retina MacBook Pro and it mounts fine in ...
40
votes
8answers
137k 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 ...
40
votes
4answers
84k 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.
41
votes
5answers
39k 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 ...
10
votes
4answers
13k views

How can I create a new Recovery Partition on EXTERNAL disk?

I want to enable encryption on an external FireWire disk. The disk has been formatted a while ago (2+ years), and when choosing "encrypt volume" from the Finder context menu, Mountain Lion refuses ...
10
votes
3answers
4k views

Can I configure my Macbook to unmount all external drives when I close the lid?

I have a new 13" Macbook Pro running Mavericks. This computer is connected to an external USB drive which I use for my Time Machine backups and for external storage Time Machine backups occur a few ...
4
votes
2answers
38k 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 Internet....
10
votes
2answers
4k views

Can Time Machine volumes be easily encrypted with FileVault 2?

Now that File Vault 2 can encrypt the entire disk and encrypt external drives, can I have a fully encrypted Time Machine volume?
15
votes
10answers
13k views

How to Eject All External Partitions Quickly?

I have an external disk with two partitions on it that I keep plugged into my MacBook Pro when I'm at my desk. (One is for Time Machine, the other just for extra storage.) Sometimes I need to grab my ...
8
votes
5answers
33k 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 (...
7
votes
2answers
3k views

Clone one Mac and restore it on multiple Macs

I am going to setup a bunch of MacBooks Pros with the same settings. I could go through every Mac and install all the programs but here is what I would like to do. I would like to setup one Mac with ...
5
votes
5answers
37k 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 ...
4
votes
2answers
4k views

Why does OS X now think I have two partitions on my external USB drive (plus random connection issue)?

I have an external USB drive that I have plugged into a USB hub, which gets unplugged from my computer about once a day. Most of the time I remember to unmount the drive before disconnecting so that ...
4
votes
2answers
8k views

How to let MacBook Pro recognize my external hard drive as internal hard drive?

I'd like to install Windows 7 on my MacBook Pro, but as the internal hard drive cable is not working, I'm using it with an external hard drive plugged in which OS X is installed on. When I try to ...
4
votes
1answer
5k views

Boot MacBook Pro into non OS X operating system from external harddisk

I have a MacBook Pro and an external HDD with Ubuntu, I can use this HDD to boot other machines into Ubuntu but no amount of pressing option would make my MacBook Pro think that the drive is bootable. ...
4
votes
0answers
1k views

Eject / unmount ghost external disk on macOS

I use MacBook Air Mid 2013 (1.3 GHz Intel Core i5, 4 GB 1600 MHz DDR3, Intel HD Graphics 5000 1536 MB, 128GB flash storage) running macOS Sierra 10.12 $ sw_vers ProductName: Mac OS X ProductVersion:...
3
votes
4answers
30k views

Copying applications from applications folder to external and reinstalling osx

Is it possible to copy all my applications from the applications folder onto an external, format my mac, reinstall OS X and finally copy the applications back into the applications folder for ...