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Questions tagged [external-disk]

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

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External HDD No Longer Accessible (ExFAT formatted)

I have an external HDD Toshiba MQ01ABD100 1TB HDD in an external enclosure. Recently it suddenly no longer accessible. When plugged to a Mac, it will prompt "The disk you inserted was not readable by ...
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0answers
17 views

Can't update to Mojave with an external SSD

I have a 2014 Mac Mini. I've seen a number of these issues but haven't found anything that could help. When trying to upgrade to Mojave, I get: you may not install to this volume because the ...
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0answers
25 views

MediaKit reports bad partition or no map found (-5324)

I am trying to recover an external drive (Western Digital, MyPassport, 4TB, WDBYFT0040BBK-0A) formatted in HFS+. /dev/disk0 (internal, physical): #: TYPE NAME ...
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15 views

Moved home-folder to external drive - after booting up Apps sometimes won't load

Bid on an 2018 Mac Mini on Ebay, when I realized that this impulse buy is an error (128GB internal drive) it was already too late. Solved that problem by moving my Home-Folder to an external ...
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1answer
89 views

Large external storage stops working after being connected for a long time

I have a 4 TB LaCie RUGGED USB-C external hard drive, and when it's connected to my MacBook Pro (13-inch mid 2014) for a long time without being used, it stops working. I do allow drives to sleep when ...
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1answer
54 views

exfat fsck crash on macos 10.14.4. Any workaround or fix?

I am trying to mount an external HD with exFAT, but apparently the latest unmount was non-successful, and now the disk requires an automatic fsck. When macos tries to perform the fsck, this happens ...
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1answer
20 views

My WD passport spins, lights up and connects but doesnt show as an available drive [duplicate]

My external hard drive fell. After that I plug it in and it lights up but doesnt blink, the HD spins then stops. The WD icon in the top right of my screen shows it there as plugged in but it doesnt ...
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1answer
92 views

How to ignore Spotlight index for a volume contain another macOS

Volume A: macOS A Volume B: macOS B How can I ignore Spotlight index of Volume B when using macOS A, while keeping index data and use index when switching to macOS B.
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1answer
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Bootcamp HDD is now in a USB3 external enclosure. Can I boot my iMac from it?

I installed windows 10 on my iMac with bootcamp and it worked great. I have since upgraded to an SDD and the old hard drive is now in a usb 3 enclosure. I'd really like to be able to boot from that ...
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2answers
521 views

How does the mv command work with external drives?

On the same drive I assume it would change something like a FAT table to repoint to the location of files. Question When going to a different drive (maybe even partition) does the mv command first ...
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1answer
27 views

Mount external disk at the same mounting point in macOS

I have an external disk, and I want to be mounted in the same mounting point (path) every time I connect. In ubuntu I edited the file /etc/fstab, I added UUID=5C2A-23AD /media/external1/ exfat ...
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1answer
91 views

Is there a way to get macos to recognize my external hard drive without rebooting the operating system?

I have a 4TB external drive connected to my 2015 macbook pro. It has 2 2TB partitions. I use 1 for time machine backups and the other for other files. From time to time when I plug it into the USB ...
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1answer
18 views

Recommendations for networking an encrypted OSX Extended format drive

I have a 2TB external USB drive. I formatted it using OSX Extended encrypted. I'd like to have it available on my local network preferably without having to have it permanently connect to one of my ...
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1answer
28 views

How do I move a folder and contained files in an external volume to another external volume using Terminal

I have two drobos. I want to move a folder (called A) from one drobo name (Behemoth) to another drobo (Galactus) using Terminal (Mac). I have tried ditto ~/Volumes/Behemoth/A /Volumes/Galactus/ but ...
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1answer
43 views

Brand new external hard drive formatted exFAT is mounted read only

I bought a new HDD, formatted as exFAT with mac. I moved files from my laptop to the HDD (moved, I mean, I also deleted them). It happened with a directory it got stucked. I quit the process of ...
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0answers
46 views

Time Machine won't be able to backup to my external HDD

My Info device: macbook pro 2018 13' os: Mojave (version 10.14.3) backup device: WD my passport 2TB partition map: GUID Partition Map partition name: backup (format: mac os extended(...
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11 views

Lost connection to NTFS external drive in the middle of use, now it won't mount

Problem: I was watching a movie through iTunes and 20 minutes in the movie just stops and says it can't find the file location. I recently moved my iTunes library to my external drive, but I watched ...
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0answers
72 views

Slow read/write speed (40MBps) with USB-C external SSD on Macbook Pro

I had a Sandisk Extreme Pro 500Gb PCIe NVME M.2 SSD. I got an USB-C 3.1 Gen 2 Enclosure for it. I have tried it on 3 different 2017 and 2018 macbook pros and an iMac. The Max read/write speed that I ...
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2answers
22 views

How do I copy files from macbook to external harddrive using single user mode?

My MacBook pro shut down due to an error, and now I can't log in again. I've tried creating an image using Disk Utility but it fails every time. I have my hard drive connected to my MacBook but when I ...
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1answer
38 views

Use an external disk shared to Mac via Windows for Time Machine

I have an external hard drive with 3 partitions partitions a exFAT connected to a Windows 10 PC. I am able to mount and access the disks on my Mac wirelessly but cannot get TimeMachine to use this ...
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25 views

Can't reboot on external SSD with Bootcamp

a few months ago I bought a new Mac, since this machines are so pricy, I ended up buy a basic model with a small SSD and only 8GB of RAM, for this reason I have been trying to avoid running Windows ...
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0answers
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Finder thinks there are many nonexistent volumes named “m”

I have a clumsy but mostly working AppleScript that ejects all partitions on one of my external drives except for the partition called Data OWC4_500. The first commands in the script are tell ...
3
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1answer
27 views

Back up other drive using Time Machine

I'm trying to diagnose & fix some problem on my MacBook Pro - the machine randomly hard-crashes instantly & shuts down. I have a somewhat-old Time Machine backup of the drive on an external ...
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2answers
38 views

Using iCloud as file storage and synchronization service

I am considering to choose iCloud Drive vs Google Drive to store old music and photos folders present in external drives. Is it possible to upload large folders to iCloud Drive that are not present ...
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1answer
246 views

“Permission denied” when running macOS installer from command line

I'm trying to install High Sierra to an external drive, from a system which is running Mojave. I can't run the GUI installer (it warns me about trying to install an older version of the OS), so I'm ...
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1answer
18 views

Backing up another user’s mid-2013 Macbook Air

I have pretty much been a Windows user all my life but a family member has recently given me his mid-2013 i7 Macbook Air. This machine is logged in with his Apple account (I have the credentials) and ...
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2answers
74 views

How can I recover a Mac-formatted external hard drive?

My girlfriend has an external hard drive with a bunch of photos on it from her Mac. She needed to transfer the files to her PC but we soon discovered that Macs and PCs use different formatting ...
2
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1answer
146 views

Best practices to move macOS Mail.app storage to an external drive?

I have a system with fairly small internal storage (500GB) so I have attached a reasonably quick external storage device (256GB) that will be constantly mounted. To free up space on the internal ...
2
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1answer
33 views

External hard drives keep failing

A couple years ago, I learned my lesson. I had bought a WD My Book Thunderbolt external RAID. I didn't have a backup plan of course; it failed within a year, and I lost everything—this was about a ...
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1answer
132 views

Can't write to Seagate external hard drive on other macbook pros

I have a "new" 2gb Seagate external hdd. I used it to copy files off of my old Macbook pro, circa 2014, which worked fine. I just plugged in the drive into my new Macbook pro, circa 2018. I can ...
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1answer
41 views

Why my Mac Mini doesn't boot with external HDD attached?

Ext HDD is 3,5" 4TB WD RED (exFAT) in USB 2.0 box with external power supply (220v) When I restart my Mac Mini (late 2012, MacOS 10.14) in 90% the boot will end on black screen (no apple loading logo,...
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0answers
16 views

cloning external 1TB HDD to internal 500GB SSD

2015 iMac, non-retina, OS 10.13, to remedy bad data transfer, SSD can be totally erased external HDD OS 10.14, 200GB total used, this disk was "professionally" replaced yesterday with the SSD but ...
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1answer
82 views

Installing modern OS X version on 2013 with external SSD and missing OEM internal SSD

Background: I have a mid-2013 MBA I was given a couple of years ago without its SSD. I used it with an external USB 3.0 HD and upgraded the OS each new version up to Sierra, but could never get High ...
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0answers
23 views

Reinstall vmware fusion and vm cannot run

First I explain why I reinstall vmware fusion: ubuntu on vmware fusion cannot detect my external hard disk. This forum tells me to reinstall the vmware fusion while my security is unlocked(for more ...
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0answers
94 views

How to mount FAT32 partition on MBR disk containing a logical Linux partition

I have a USB stick which contained a single FAT32 partition and was working fine. Then I ran the Ubuntu Server 18.04 installer, shrinking the partition and adding a logical Ext4 partition to install ...
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0answers
7 views

External disk automatically reconnects after unmounting

I have a weird problem on my 13" MBP (Early 2015) running MacOS 10.14.3 Mojave. I have an external USB disk with a MBR partition scheme and one big exFAT partition that allows me to exchange files ...
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0answers
10 views

Copy mp3s listed in a m3u-file to another harddrive

Over the last decade or two, I've collected quite a lot of mp3-files. I had them organised on an external / internal hard drive on Windows computers, and created a bunch of playlists with my favourite ...
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1answer
35 views

How do I resolve a non-unique HD Identifier problem?

I use a HD with a caddy adapter for saving some files. macOS attributes a unique identifier for each external drive connected. But I needed to swap my adapter for the same disk, and now it's not ...
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2answers
53 views

Recognize externel hard drive as internal

I need my 2018 Mac mini (Mojave) to recognize the external hard drive as an internal one so I can use Bootcamp and install Windows on it. I tried the answer in "How to let MacBook Pro recognize my ...
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0answers
24 views

How to stop my external (USB) hard drive from sleeping/parking when not used

[MacBook Pro mid-2014 retina, Macos Mojave 10.14.1] I have a 3TB WD Elements (5400rpm) usb3 hard drive plugged into my laptop which I use for storing larger files since my laptop only had 500GB. I'...
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2answers
80 views

My External Hard Drive's format changed to FAT16 without any reason

I have an ADATA HD710 1TB external hard drive which I use mostly in my Mac Mini 2011 and I have created two separate partitions for my drive. One of the partitions has APFS (Apple File System) format ...
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0answers
18 views

mount external drive not ejectable

I mounted without any problem an external USB drive and I can see on my Mac. I wonder if there is a way to let system identify it as "internal" drive and not as USB plugged device. It's a low profile ...
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1answer
33 views

How do I move files to external HD via Terminal?

I am trying to move a couple of folders from my Desktop to an external Hard Drive as Finder is not working. When I type command mount, I get the HD listed, but when I try to use command ls or cp I ...
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1answer
12 views

Macbook Pro can only startup with external hard drive connected [duplicate]

Here are the facts: 13 inch, mid 2012 It gave me the grey screen with the flashing question mark folder one day, and I got an external hard to install the MAC OS X operating system like the apple ...
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0answers
106 views

My Passport Ultra transfer speed

I bought this device to replace an older HP external drive. This WD drive comes with a USB 3C cable and a USB 3 adapter. Im using it on a MPB - USB3 port. WD will only give me "theoretical" speed ...
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1answer
19 views

Is it a bad idea to daisy chain to an internet router through an external drive?

I'm interested in setting up a wired connection to my router, in order to achieve a faster internet connection than I can get from built-in 802.11n. My 2012 Mac Book Air has only one Thunderbolt 1 ...
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0answers
10 views

Best way to copy FILENAMES, MODIFIED DATE & SIZE in multiple nested directories on external drives? [duplicate]

I want to create lists of ALL FILENAMES, MODIFIED DATE & SIZE in multiple NESTED directories on some external drives? I am a long-time Mac user but completely ignorant of UNIX-OS X command line ...
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0answers
696 views

Mac asks me to run Disk Utility in Recovery, while in Recovery

I have a WD EasyStore Drive, and for some reason it was bugging out with Time Machine today. I decided to run First Aid on the drive and it found a corruption it wanted me to fix via Recovery mode. ...
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0answers
16 views

How can I mount a removable device as un-ejectable [duplicate]

I have a Micro-SD card which I keep permanently inserted in my MacBook Pro using a nifty Mini-drive. I doubt it should matter, but this is a 13" early 2011 MacBookPro, running High Sierra (hardware ...
2
votes
1answer
578 views

Can’t mount external drive - Mojave

came up here after a lot of looking around. Even seen a couple of examples of my issue, JT not sure what to do. Have tried a bunch of stuff and still cannot not get drive to mount. Apple says to wait ...