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Questions tagged [hard-drive]

A hard drive is a device for permanent or long-term storage in computers.

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cannot mount Sandisk External SSD Extreme - APFS error 49218

After a reboot I am unable to mount an external USB-C SSD with Catalina 10.15.5 Disk Utility is recognizing the disk, I can see a "disk3" container with my APFS volume , but once I try to ...
3 votes
1 answer
7k views

Can I use Boot Camp without removing attached external storage?

I have an iMac with an internal Fusion Drive, and I've since wiped that drive installed macOS on an external Thunderbolt SSD for speed. I'd like to install Windows 10 on my iMac's blank internal drive,...
1 vote
1 answer
119 views

Hard drive full no matter what I try

I have run into the issue where no matter what files/applications I delete I cannot actually free up any disk space on my Early 2014 Macbook Air with 128GB of SSD storage. The most recent exercise ...
1 vote
1 answer
237 views

Erase Data from Uninitialised External HDD

My HDD has most likely been damaged after one day of usage (WD MyPassport 2TB). Is there any way if I can erase it? I am pretty sure I have something on it. Disk Utility cannot do it, 69825 error, ...
1 vote
0 answers
36 views

Why does my exFAT external disk show errors on Windows and corrupt PDF files after formatting on macOS?

I partitioned an external disk as exFAT on my Mac using diskutil and the following commands: diskutil list diskutil unmountDisk force disk2 sudo dd if=/dev/zero of=/dev/disk2 bs=1024 count=1024 ...
1 vote
1 answer
2k views

If I temporarily remove an external HD from my Mac, then re-introduce it a few weeks later, will Time Machine back it all up again?

If I remove an external hard drive from my Mac, then re-introduce it a few weeks later, will Time Machine back it all up again as if it were a new drive, or will it just back up the changes that were ...
0 votes
0 answers
20 views

Two separate Time Machine backups on single HFS+ drive?

I have been keeping Time Machine backups for two separate MacBooks on a single external hard drive by having two APFS volumes on the single APFS-formatted drive. No problems there. Both MacBooks ask ...
1 vote
1 answer
66 views

macOS BigSur keep booting from external backup disk (made with CCC)

My Mac is on BigSur and I am using Carbon Copy Cloner to create a one on one disk which is bootable also. I have this setup running for years now and never noticed any problems – also on BigSur it ...
1 vote
0 answers
22 views

Photos transfer from mac-book air to a hard disk

I have 7800 Photos on my photos of mac-book air, i need to transfer all the 7800 photos to a external harddisk. I created a separate folder with all the 7800 photos on the desktop now when i try to ...
2 votes
1 answer
3k views

APFS Partitions corrupted

I recently ran Boot Camp Assistant to remove the Windows partition from my 2017 MacBook Pro, but during the partitioning step I quit Boot Camp Assistant. After restarting the computer the next time, I ...
2 votes
1 answer
814 views

Is this a normal Disk Partition Configuration?

I'm new to mac I just got my first macbook used last week. I was trying to install Windows 10 via boot camp and it told me it could not due to some issue and to check Disk Utility. I have used Linux ...
0 votes
1 answer
900 views

"Share Disk" MacBook doesn't appear in "Network" section of the other Mac

One of my laptops (MacBook pro with apple silicon) went kaput recently, and I'm trying to back up the files before I reinstall the OS. I can get it to enter disk sharing mode, but I can't get it to ...
2 votes
2 answers
188 views

Why does Time Machine settings not see a network drive?

Current backup solution Macbook Pro 13" (2020) running macOS 14.4.1 Sonoma Seagate 1TB external USB 3 drive formatted as Mac OS Extended (Case-sensitive, Journaled)/Master Boot Record I would ...
0 votes
0 answers
21 views

500 GB external hard drive broken after Boot Camp

I am running macOS 10.13.6 on a Mac mini 2011 and I decided to get Windows 8 using Boot Camp. The installation went well, but I couldn't switch back to macOS. On a different question, I got advice and ...
2 votes
1 answer
345 views

Encrypted disk is "corrupt" but unencrypted is fine

I have a USB hard drive that I want to use as my Time Machine backup disk. I want it to be encrypted. If I partition it as an encrypted disk, it finishes fine; but then if I run First Aid, it says it'...
1 vote
1 answer
889 views

Slow Finder - Caused by external disks?

I've been finding Finder slow on my brand new Retina MacBook Pro. I've got two external disks connected to my Mac most of the time. One is a Time Machine backup, the other is a Clone, also for backup....
2 votes
1 answer
6k views

Format a SSD from Mac OS Extended to NTFS

I have a SSD formated in Mac OS Extended, and I want to format it to NTFS because I will use it on Windows. To do it, I installed Paragon. I rebooted my MacBook. I checked if the driver was actived, ...
1 vote
1 answer
409 views

Can't unlock APFS external drive

I've recently come across an issue with my external HDD (2TB, LaCiE) drive which is formatted with APFS. I have three volumes under a 2TB container which are all APFS (Case-sensitive, Encrypted). ...
2 votes
1 answer
1k views

Disk Utility with extra Mac HD after clean install on Monterey (formerly Big Sur)

Not sure if I need to re-format and re-install again. Is it normal to see so many Mac HD, and should I try to remove the extra ones? Had some HD issue where somehow there was no space left and thus ...
1 vote
2 answers
833 views

External drive with Time Machine not visible

mac os monterey 12.5.1 My external drive 2to is split into two partition of 1to One called backup001: it is formated mac os, and it uses for timemachine for a long time. it works ok. Another ...
2 votes
1 answer
215 views

Resize first partition on MacBook Pro M2, having two partitions with each MacOSX installed

I'm having a MacBook Pro with M2 chip from the company I work for. It is allowed to use the device with a separate OS installed on it. That's why I currently have two partitions, each with another ...
2 votes
1 answer
5k views

RAID 5 options on macOS Big Sur?

I'm given to understand that Disk Utility in macOS Big Sur does not support RAID options other than RAID 0 and RAID 1. I've got a multi-drive enclosure that I'd like to setup for RAID 5. Are there ...
2 votes
1 answer
70 views

2009 Mac with Upgraded GPU

Well I feel really silly. I had a stable running 10.13 with a metal supported gpu but I wanted to clone the drive as I move into Mojave. So I thought, oh I’ll start it up on an old hard drive running ...
0 votes
1 answer
378 views

Reformatted Windows HDD shows up twice in Disk Utility

Had a 1TB hard drive in a Windows laptop that I replaced with an SSD. I've put the old hard drive in a USB enclosure so I can use it as an external drive. I plugged it into my Mac and opened disk ...
1 vote
0 answers
48 views

Not able to access 500 GB space from my external drive

I have a 1.5 TB WD Elements hard drive. There were two containers with 500 GB space and 250 GB space respectively. I wanted to delete both of them and merge them in my 750 GB APFS volume. I was able ...
0 votes
0 answers
50 views

Macbook Air 2013 - 256GB SSD shows as 1.2GB in disk utility

I have "inherited" a 2013 MacBook Air with a 256GB SSD. The machine was formerly used with Windows 10 but I threw that out, along with the MacOS, and tried to install various versions of ...
0 votes
0 answers
28 views

Moving files to a new volume; keeping same Time Machine backup

My desktop (iMac) system includes the internal SSD and an external storage disk; call it 'A'. Both are backed up with Time Machine on another external drive, 'B'. Now, 'A' is getting full. I want to ...
2 votes
1 answer
243 views

Old iMac Hard Drive not readable as external

My friend's iMac would not boot. I ran TechTool Protogo using a thumb drive with TTP 9 to test the hard drive. It reported several hundred failed sectors on the drive, so I recommended we replace it....
1 vote
1 answer
341 views

External Drive not showing up, light blinking, iMac

External Drive disconnected during backup but now it won't show up again. The light keeps blinking. How do I fix this problem? What I tried and didn't work: New USB cable Connect it to a different ...
1 vote
0 answers
49 views

Diskutil partitionDisk Error: A writable disk is required (-69772)

I'm trying to format an external disk (identified as /dev/disk4) using diskutil partitionDisk on macOS. However, I'm encountering the following error: Error creating partition map: A writable disk is ...
0 votes
1 answer
35 views

"Device not configured" after external HD improperly unmounted

I accidently unplugged my external HD before the eject was done :-/ /Volumes/Red is still there and can't be deleted. The HD still mounts but as /Volumes/Red 1. How can I remove /Volumes/Red? $ gls -...
2 votes
2 answers
3k views

Unable to Wipe and reformat an SSD Drive - wiping volume failed

I've run through a range of solutions offered on the forum The disk came from a Windows 10 machine and I wanted to wipe and install another OS but have been struggling. I gave up on the actual PC as I ...
1 vote
1 answer
76 views

TechTool Pro surface scan No bad blocks, SMART failed

I have a HDD which stores pdfs. So far I haven't had problems accessing the files. I ran a complete surface scan using TechTool Pro which said no bad blocks. Right before I ran the surface scan the ...
4 votes
1 answer
12k views

Macbook boots up to grey 'prohibited' symbol

I'm having an issue with my '09 13" Macbook Pro. When I boot it up, it seems to be booting normally until about thirty seconds in, when the Apple symbol is replaced with a kind of 'no-smoking' symbol, ...
2 votes
1 answer
116 views

moving backups between external hard disks

One of the external backup disks I use to back up my personal laptop filled up when I was too busy to buy another, so (in a rush) I grabbed another project's backup disk and added my laptop to it too. ...
0 votes
1 answer
100 views

Undo a diskutil partitioning attempt?

I accidentally reformatted /dev/disk2 (when I wanted to do it for /dev/disk5...) Users-MacBook-Pro-3:~ user$ diskutil list /dev/disk0 (internal): #: TYPE NAME ...
3 votes
1 answer
643 views

Manually Decrypt Partially Cloned APFS Volume

I recently attempted to clone a failing external drive to a new external drive. The clone failed part-way into the process. The original drive hardware has now fully failed, so I'm trying to recover ...
1 vote
1 answer
367 views

What is nvme0n2 on MacBookPro13,1?

While trying to install (dual-boot) Pop!_OS 20.10 I found /dev/nvme0n2 of size 8KiB on my MacBookPro13,1 which made the live-installer of PopOS crash just before loading the partitioning page and the ...
3 votes
2 answers
348 views

External Thunderbolt SSDs not showing space after deleting files

I have two external Samsung X5 2TB Thunderbolt 3 SSDs. Both of them work fine after I reformat them. But when I delete files (and empty the recycle bin), the space on them does not increase. In ...
0 votes
1 answer
539 views

WD Blue SSD stuck in a boot loop

My Mac is stuck in a boot-loop with a third party SSD. So I recently pruchased a WD Blue 500GB SSD to replace my HDD in my 13" MBP mid-2012. At first I wanted to clone my HDD to the SSD, looked ...
1 vote
0 answers
27 views

Overcome file recovery on Time Machine: error -36

I'm helping a friend who has suffered a big loss of data. She keeps some Time Machine snapshots on an external drive but when we try to recover a file we get an error message "...some data can't ...
0 votes
1 answer
223 views

legacyScreenSaver taking 67GB on disk -- OK to delete?

I noticed something called "legacyScreenSaver" takes 67GB on disk and feel it’s too much for me. I looked deeper, and I found that it's actually for the screen saver I do use, Aerial. It's ...
17 votes
3 answers
36k views

How to always keep a local copy of documents/folder in iCloud?

I'm now using iCloud on macOS 10.12. Many folders and files (for example on my Desktop, etc.) are no more physically present on my hard drive, they have been pushed to the cloud. I have two questions. ...
2 votes
2 answers
190 views

macOS recommended maximum disk space usage?

I was told by a mac repairman that I should leave about 10% of the disk space empty, otherwise, my SSD and/or the machine would die. Is this true? I've never heard of such a thing in my life. He also ...
3 votes
3 answers
5k views

"Could not mount disk2s1 after erase" error for external SSD on mac ventura

I am unable to mount my segate external SSD. Everytime I restart macbook pro, I dont see volumes from my external SSD. If I try to mount manually from Disk utility, I get below error. Could not mount “...
0 votes
1 answer
48 views

Third-party backup SSD not appearing

I've been using a third-party (LaCie) SSD for Time Machine backups ever since the HD in my Time Capsule router stopped working. (The SSD is plugged into the Time Capsule which also is my router.) But ...
1 vote
1 answer
35 views

1.41 GB volume not mounted since oclp/sonoma installation on MBP

I was checking my disks after the successful installation oclp 1.4.3/Sonoma 1.4.1 on a MBP 14,3 2017 with Touch Bar. Why I have an 1 Not Mounted volume on my main (startup) disk?
 I googled for this ...
1 vote
1 answer
127 views

Attempting to repair a split Fusion Drive

I attempted to activate FileVault on a late-2013 iMac, which has a 1TB Fusion Drive. However, the encryption process became stuck after several hours, so I had to reboot. This is when the issue ...
1 vote
1 answer
684 views

Mac not booting after moving SSD and HDD to another Mac

I had a mid-2011, 2.5GHz, AMD graphics, Mac Mini with an SSD and HDD using OWC’s dual drive setup. The SSD drive had the OS (10.11 I think) and the HDD had my home folder and an old version of OS X (...
0 votes
1 answer
35 views

Lost garage band files can I build my project on Xcode?

So it’s been a year since my computer crashed and corrupted my hard drive. I lost most of my audio files on GarageBand. I have one project I really want back and in the file it has 2 audio tracks ...

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