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

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32 views

Macbook Air reboots repeatedly

It's a Macbook Air with OS X El Capitan (10.11.1), an early 2014 model. I got it exactly 14 mouths ago without any issues until now. This morning I just opened the laptop and after a very short time,...
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62 views

External disc partitioning gone wrong

I would appreciate any help as this situation is beyond my skills. I was trying to follow an internet instruction for putting an OS X Installation on my WD external drive using my MacBook, to ...
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0answers
128 views

After 10.11.1 upgrade USB hub on Dell monitor won't mount drives

I use a Dell 2715Q 4k screen with a USB3 hub. With 10.11.0, I was able to mount my USB drives for time machine. After the update to 10.11.1, the Macbook does not see the USB drives. I can connect ...
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0answers
28 views

Restore RAID Mirror?

I had a 3TB mirror using Apple software RAID on Mavericks—the two disks are in a USB3 JBOD and the USB3 card in my Mac Pro only works with Mavericks or older. Last night I demoted one of the disks so ...
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0answers
96 views

Western Digital Firmware updater will not detect drive

I have two western digital for mac external hard drives. And both were disconnecting when I plug them into a USB 3.0 external four-way port, but not a USB 2.0 port. Found out this was a common problem,...
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1answer
45 views

Could I connect a macbook pro to an external hard drive for use with time machine

I want to know if connecting a macbook pro to an external hard drive for use with time machine when I am not using it, at night, will work. If I then disconnect it in the morning (regardless of the ...
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1answer
336 views

Read files from old windows-formatted external USB hard drive

Years ago, I used an external USB hard drive with my PC (most likely Windows XP at the time). I've been trying to recover some files off of the old drive, but I no longer have a Windows machine and ...
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4answers
18k views

Can't write on external HDD after upgrading to OS X El Capitan

I am using a LaCie external hard disk in my MacBookPro for 3 years. After having updated to OS X El Capitan, I am no longer able to write on the HDD and I have read-only privileges. Info shows that ...
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0answers
132 views

Unable to view files on USB hard drive connected to my AirPort Extreme

I have a external USB hard drive connected to my 5th generation AirPort Extreme. Sometimes, usually after a computer restart, I'm able to view the files. But after that, I'm unable to view them, as ...
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1answer
1k views

How to stop decryption of external drive

I've searched on the internet for a while and asked my question on apples website discussions.apple.com as well, however I haven't found and answer yet and people aren't responding on apple's site so ...
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1answer
38 views

Fastest means to copy many drives to one drive

I have data on 16 drives that I want to consolidate to one drive. The 16 drives are external with a firewire connection. Currently I have the one drive connected as an external drive on firewire. I ...
1
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1answer
37 views

Attaching External HD to Airport - Is It Secure?

I am thinking about attaching an external HD to my Airpot (ac), which I will use to back up my computer using SuperDuper on a nightly basis. However, I am concerned about security. I know that I can ...
1
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2answers
420 views

Transfer iTunes library and music to external hard drive

I have an iMac running OS X Yosemite 10.10.5, with iTunes 12.3. I want to transfer my music to an external hard drive, but here is the difference: I don't want to transfer it to another computer. I ...
2
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0answers
103 views

How to Restore the Mail Symlinks to External Drive on 10.11?

My Mac Mail has been working using an external drive for the library and all messages since 2013. However I upgraded to 10.11 today and need to find a way to reference everything on the external ...
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2answers
4k views

MacBook Pro can't mount an exFAT external hard drive when having too many files

I need to share files between Windows and Mac, so I chose exFAT as the file system for my external hard drive. But soon I found a serious problem, when I put too many files (like 5M) in the hard ...
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2answers
516 views

External hard drive won't show up on finder (theres more to this)

So I plugged in my hard drive, and deleted a file on it, a .nfo file. I forgot I had a file in the trash and so when I ejected the disk, my mac prompted me an alert like "disk is in use" with a force ...
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1answer
1k views

Is it unusual for “Verify Disk” on Disk Utilities to take so long on a Time Machine drive?

I have an external 3TB FW800 drive set up to be my Time Machine drive. I noticed some unusually high drive activity, and opened up Time Machine to see if it was backing up. Nope, TM showed previous ...
2
votes
1answer
29 views

What will Dropbox do when I boot my external backup drive?

My MacBook just died and I brought it into the store to get it fixed. Luckily I have a recent backup (from last week) that I made with SuperDuper so I can actually plug it into my wife's Mac and boot ...
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3answers
400 views

Use external hard drive to install applications to it

I have a 120 GB SSD on my Mac and it is almost 90% full. I have another 500 GB external hard drive and I want to install some big applications to that hard drive so it does not occupy space of SSD. ...
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1answer
955 views

Installing Snow Leopard on external drive with newer iMac version

I have two computers running different types of OS X. One is an iMac with Mavericks (10.9.5) and the other is a Macbook Pro with Snow Leopard (10.6.x). My Macbook Pro isn't working (HDD problem), so ...
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0answers
18 views

OSX-based app for copying a NTFS drive with verification + re-read?

I'm attempting to copy a friend's NTFS drive to my internal drive, wipe the NTFS drive and then format it to FAT32. However, the NTFS drive copy keeps timing out every few minutes. Any suggestions ...
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0answers
41 views

Cannot transfer files over 80MB to hard drive from dying external hard drive

My Seagate external hard drive is dying. I have been able to (finally) mount the drive and transferred smaller file sizes (Word docs, files under 50MB), but I cannot transfer any files over 50MB - ...
2
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1answer
249 views

Photos App : Using Photos App on a library that is stored on a USB Flash Drive

I would like to store my Photos library onto an external USB Flash drive. I have found other articles explaining that it was possible to store a Photos library onto an external USB SSD or HDD and ...
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0answers
94 views

Move the beginning of HFS+ partition

What I'm trying to do is move the beginning of the partition on an external HD drive. I have an external HD drive with two HFS+ partitions on it. I want to grow the first one at expense of the second ...
2
votes
1answer
293 views

Deleting of old backups in Time machine

I have WD-My book world of 1TB and I struggled for some time to set it up correctly to use it as a disk for usage of time machine on Mac OS X Yosemite. My question is the following-what is the best ...
2
votes
1answer
170 views

External Harddrive Permissions Changed / No Access

my external harddrive permissions have suddenly changed. I am getting mount errors in Disk Utility when I try to verify the disk. When I Get Info for the drive in question, it states that I have "NO ...
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1answer
866 views

Can you transfer your applications like photoshop from your old mac to your new macbook?

Is it possible using a passport external hard drive and tome machine to transfer applications from my old macbook to my new macbook? Please advise a safe way to do this if it is possible?
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2answers
5k views

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

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 ...
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0answers
92 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 ...
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2answers
463 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 ...
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2answers
1k views

WD External Drive Automatically Unmounts [closed]

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 ...
1
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1answer
29 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 crashes....
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2answers
360 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 ...
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0answers
57 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 /usr/...
1
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1answer
399 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. ...
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0answers
158 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 ...
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0answers
152 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 ...
3
votes
0answers
246 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 │   └── BC758E30-9A07-4193-BEE7-...
0
votes
1answer
615 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
2k 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 ...
2
votes
1answer
792 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
70 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
1answer
276 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
382 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
118 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 ...
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4answers
927 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, ...
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2answers
165 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
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1answer
135 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 ...
2
votes
0answers
269 views

Boot external Windows 8.1 installation on Mac Book Pro Retina 2015

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 ...
1
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2answers
380 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 ...