Questions tagged [external-disk]

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

177 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
6
votes
0answers
310 views

Stop iTerm2 from using disk (disk cannot be ejected)

How can stop iTerm2 from using the mounted disk I cd'd into? Sometimes, even when i cd out, it's still blocking the disk. I have to ⌘-Q the entire program which is very irritating. It's just idling ...
5
votes
0answers
1k views

Can't add shared drive as Time Machine drive

Solved by this. Can't post as answer due to low reputation on this network site. on the server (in my case the iMac) in the settings --> sharing tab, disable file sharing (no need to reboot or ...
5
votes
0answers
302 views

Can I put my Photos library on an external hard drive also used for Time Machine?

So, I am new to Macs, and I have a MacBook Air. I've got lots of phots to import into the Photos program, so I decided to stick them all on an external hard drive. I have also used that hard drive ...
4
votes
0answers
239 views

Recover data from external hard drive partition Mac OS X

A couple of weeks ago, I dropped my external drive while a program was writing data to it. The drive seems to spin up fine, without beeps/scratches. The drive also has EFI and Recovery partitions. One ...
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:...
4
votes
0answers
222 views

photolibr is preventing my external disk eject

I have my Photos library in an external usb3 disk. Usually, photolibr prevents the disk from ejecting, even if Photos is closed: kukuruzasIII:yoAlcalde_mobile olmo$ lsof | grep DATOS photolibr 504 ...
3
votes
0answers
4k 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. ...
3
votes
0answers
532 views

USB Drives not showing up after Mac was sleeping

I am constantly encountering the following problem with my Mac(s). This has been happening with two different Macbook Pros (13" late 2011 and 13" 2017) with numerous MacOS versions, including the ...
3
votes
0answers
104 views

Directory is not recognised on macOS but works well on Ubuntu and Windows

I have a removable hard drive in NTFS format that is connected to macbook pro through usb. For some reason finder doesn't show one of the directories. First I thought that I removed it by mistake, ...
3
votes
0answers
847 views

External Hard Drive Corrupted, Invalid Record Count

I have an external hard drive that I unplugged without safely ejecting and now it won't mount. I can see it if I write diskutil list, but when I try to mount it fails. It is a WD My Passport Ultra. ...
3
votes
0answers
1k views

USB-3 drive ejects unexpectedly while writing large amount of data on it

I have a 5 TB Seagate external drive connected to a 2012 MacBook Pro (non Retina) through a USB-3 connector that always gets ejected while I am copying files to it. When I try to copy large amounts of ...
3
votes
0answers
2k views

How do I mount an encrypted disk in single-user mode?

How do I mount an encrypted disk in single-user mode? I tried using one of the answers to “How can I mount an encrypted disk from the command line?”; but when I tried using “diskutil” as suggested, I ...
3
votes
0answers
238 views

External USB3 hard disk not mounting (10.11.6)

I have an external USB3 hard disk which used be my Time Machine backup drive. It is not mounting in Finder, but is showing up if I diskutil list. It sounds like it wants to mount - in fact, it sounds ...
3
votes
0answers
1k views

How can I repair hdd using Disk Utility if First Aid options (Repair, Verify) are all greyed out?

Would really appreciate any help in fixing an external drive so can use with my Mac again. I had a power loss & when computer rebooted it was unable to see the attached Freecom 320Gig Hdd (FAT32 ...
3
votes
0answers
1k 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-...
3
votes
0answers
7k 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 ...
3
votes
0answers
298 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. ...
3
votes
0answers
426 views

Raid two external hard-drives with read/write support on Windows & OS X

I have a USB 3 HDD enclosure that currently has two 1TB drives in it. I am looking at buying another external USB 3 HDD drive (not an enclosure). I am currently running the external enclosure with the ...
2
votes
0answers
51 views

Folder on external, NTFS formated, drive empty after mounty and fstab changes

I have Mojave installed on Mac and an external NTFS formatted hard drive. a) tried to get writing permission via the terminal sudo nano /etc/fstab LABEL=NAME none ntfs rw,auto,nobrowse b) installed ...
2
votes
0answers
23 views

Stop macOS from ejecting external disks on logout

I have a Mac Mini running 10.14.6 and hosting file sharing and Time Machine backups on an external drive. Every time a user logs out of the console, the external drive is ejected. This happens even ...
2
votes
0answers
184 views

How to fix “Operation not supported” on mac os

I am trying to install the Flutter onto my computer onto an external drive I have followed the instructions on their website to try and install it. https://flutter.dev/docs/get-started/install/macos. ...
2
votes
0answers
135 views

[Catalina]: GetMasterBlock: Error 1 opening /dev/rdisk2s2 during read-write mount

After upgrading to mac os catalina, I am unable to mount my external SSD drive in r/w mode. The external SSD drive is my time machine backup drive. $ sudo mount -v -u -w /dev/disk2s2 /Volumes/...
2
votes
0answers
432 views

Time Machine can't back up to an attached external USB drive

Mac "A" (iMac, macOS 10.14) has an attached USB hard disk "EXT" (3TB, GUID, macOS Extended, Journaled). Mac "A" can use Time Machine successfully to back up to external drives shared from other ...
2
votes
0answers
235 views

Not Admin | Firmware password error | Recovery Mode wont boot

This probably sounds pretty sketchy, so I’ll preface my question with a brief run down of how I got here... Pretty sure I was hacked... It’s a mid-2012 running High Sierra on a SSD harrdrive. ...
2
votes
0answers
876 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 ...
2
votes
0answers
17 views

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 ...
2
votes
0answers
65 views

Error Code -36 Copying Files from Windows NT Formatted Drive to exFAT Drive (select files only)

The gist of the problem is this: I have a large amount of video and audio footage that I need to consolidate from multiple drives - namely this Windows NT Filesystem formatted Seagate Expansion Drive ...
2
votes
0answers
32 views

Why am I receiving this error when attempting to unmount external CF card?

Sometimes I receive the following error when trying to unmount an external USB, CF, or random drive: dissented by PID 17728 (/usr/bin/login) I attempted to cd out of the drive directory, and into my ...
2
votes
0answers
780 views

reformat a GPT external HDD to MBR/exFAT

I am currently looking for a solution (if it exists) to change my external 4 TB SATA HD from a GUID Partition Table to an MBR with an exFAT volume. I did not see an already answered solution but if ...
2
votes
0answers
586 views

External Drive Encrypted Journaled - Show Password Hint

I encrypted an external hard drive using MacOS Journaled Encrypted about a year ago. I'm confident that I was prompted to provide a password hint when I entered the original password and formatted the ...
2
votes
0answers
49 views

Store infrequently used files on external HDD

Is there a utility that enables storing infrequently accessed files from a Mac on an external hard drive to free up disk space similar to the feature that moves such files to iCloud? I would like ...
2
votes
0answers
281 views

Lost Partition on External Hard Drive When Setting Up Time Machine

I had an external hard drive with two partitions (Thing1, Thing2). Thing1 contained manual file backup data and Thing2 was empty and was my targeted drive for Time Machine. I opened Time Machine and ...
2
votes
0answers
708 views

External hard disk not mounting

I have a WD My Passport Ultra Hard Disk. I am trying to use it on El Capitan. Its not showing up in the Finder. When I open Disk Utility, it just keeps loading forever and does not show any ...
2
votes
0answers
1k views

External hard drive : Problems were found with the partition map

I have an external hard drive which carries all my most precious files (some are backed up on a second hard drive, but not terribly recently). I decided to "encrypt" this hard drive (which I ...
2
votes
0answers
48 views

What HDD to use as an *external* internal drive instead of optical drive in a MacBook Pro early 2011?

I was wondering if there are any recommendations on which HDD (Brand, Model) is best to be used in a MacBook Pro early 2011 13" (running El Capitan). I'm planning on exchanging my optical drive for an ...
2
votes
0answers
725 views

Hard Drive: I can see it in /Volumes, but it does not show up in Finder

I'm connecting my external Hard Drive on my Mac. It's a NTFS drive. It used to show up normally on Finder's sidebar and Desktop as well, but it doesn't anymore. But it does show up in /Volumes folder....
2
votes
0answers
204 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 ...
2
votes
0answers
307 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 ...
2
votes
0answers
72 views

Time Machine backup to run my MacBook on another

My MacBook is in the shop for repair. I have my Mom's MacBook, but the hard drive has failed. I'm wondering if I can use the time machine backup of my computer via USB to basically run my hard drive ...
2
votes
0answers
6k views

Disk Utility: Invalid Disk Label @ cksum mismatch

I have a WD external hard drive. I've been running the routine tests to make sure all my stuff is safe lately. In Disk Utility, I did Verify Disk on both the disk itself as well as the main partition, ...
2
votes
0answers
2k views

Recover partition from NTFS drive with folder structure

I ran disk utility and looked for errors on a NTFS drive that was working fine but had been ejected abruptly after the computer was forced to shut down. After that a bunch of errors just appeared in ...
2
votes
0answers
3k views

Why can't I search files and folders on my external NTFS drive on Mountain Lion?

I have tried to re-index my external drive by removing it from Spotlight's privacy settings and putting it back there. I tried with mdutil in the terminal and I've got the following log: bb:~ bb$ ...
1
vote
1answer
13 views

macOS Catalina - Spotlight Search Problem with External Hard Drive Mac OS Extended (Journaled)

I have an external hard drive that I am having trouble with in Catalina. The drive mounts properly but Spotlight will not search it. The drive formatted as Mac OS Extended (Journaled) and is set up to ...
1
vote
0answers
31 views

External USB powered DVD writer doesn’t power up using macOS Catalina when using direct USB C to mini USB cable

I have owned three different models of the new MacBook Airs (2018, 2019 and 2020) running macOS Mojave (10.14) and macOS Catalina (10.15) and noticed a strange issue today when connecting a USB ...
1
vote
1answer
50 views

Restoring iPhone Backup from External Hard Drive

I had recently organised all the storage on my Mac and was finally able to back up my MAC and my iPhone. In order to create more space, I found an article online which told me how to move the back up ...
1
vote
0answers
99 views

How to Install High Sierra on External Drive

I'll try to keep this as simple as possible but it's a little complicated. I am trying to install High Sierra on an external disk. The computer I'm using is running Mojave, however, so it won't run ...
1
vote
0answers
19 views

External SSD not visible to MacPro

Strange one this. I have a new bare SSD I'm trying to add to my system. When installed in the enclosure I have set aside for this drive it will not show up on my system. To confirm the enclosure is ...
1
vote
0answers
32 views

New MacBook with USB-C does not recognize an older DVD drive via USB to USB-C adapter

I just got a new MacBook and a QGeeM adapter between USB and USB-C. Trying to connect an older Apple DVD drive that has the usual USB connector. The new MacBook doesn't recognize that a device has ...
1
vote
0answers
85 views

Mailbox set as read-only when symlinking from an external storage

I have multiple mailboxes and I want to save space by moving some of them in an external storage. I'd like to still be able to view the email using Mail.app even if said mailbox is now located in an ...
1
vote
0answers
33 views

How to import photos library from a Mac SSD to Windows?

Following the death of my Macbook Pro, I have an SSD with all my photos on it, stored as a Photos library. How can I extract all the photos that are in it and transfer them to Windows? My photos are ...