Questions tagged [hard-drive]

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

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Migration Assistant thinks disk is 2x as large as it really is?

I have a new 16GB/1TB Macbook Air and I'm trying to copy across my files etc from my old 16GB/1TB Macbook Pro, using Migration Assistant. There is about 420GB of the 1TB available on the Macbook Pro: ...
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Big Sur install bug on wiped out hard drive

I have kind of a complicated problem. Tried using Apple's FAQs and searched many forums. My equipment is iMac 27'' 5k retina i5 3.5ghz. I was having troubles upgrading to Big Sur. I was having the &...
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Booting ailing 2018 MBP using Target Disk Mode from a 2011 iMac running High Sierra - Additional help needed please

I've numbered each point – as there are a lot – in the hope it makes it easier to reply or ask me for further info. Thanks! The Problem What I've Tried So Far... Next Steps? Screenshots The Problem ...
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How to fix FFFF-FFF partition [duplicate]

I wanted to create a dualboot setup on my Macbook Pro so that I could run Big Sur along with High Sierra. Hence, I created another partition of size 37 GB (disk0s3) to install Big Sur on that ...
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Cannot mount previously mountable disk

I have a 2-TB SeaGate external drive in exFat format (I think). Yesterday I was able to mount it without a problem and, in fact, copied a bunch of important data to it. Today, it refuses to mount. I ...
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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,...
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Trying to restore older Macbook Pro 13 and 15in

Ok so im running out of ideas. i have two macbooks that im trying to restore. They both predate internet recovery and the hard drives were replaced. I do not have any disks for them so im trying to ...
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Cannot remove the bootcamp partition whether with disk utility or terminal

I have been trying to remove my bootcamp partition recently. When I run bootcamp assistant, it simply does not recognize the bootcamp partition, and prompts me to create another bootcamp partition. ...
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Mac/LaCie Backup With Time Machine

I have a MBP mid 2012, OS Catalina, with a Samsung 1TB SSD and want to get better about backups. I use backblaze but found it was not backing everything up when retrieving files. I bought a Lacie 2 TB ...
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What is the difference between erase and restore on macOS Disk Utility?

I want to re-format an external hard drive, but I'm not sure what the difference is between 'restore' or 'erase'. Does erase remove all files, or not? I don't want to lose the files, but I cannot back ...
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2013 iMac won't boot up

Not really good with all this, and would appreciate any help. I am using an old iMac (I think mid 2013) with the internal 1TB HDD that I think I had upgraded to Catalina. I have been having boot ...
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How to check if a new external hard drive has a bad block with free apps?

I bought a new 4TB hard drive and will use it as an external hard drive for storage via USB3.0 port. Before putting any data in it, I would like to check if there is a bad block or not. But so far, I ...
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What is the difference between erase and restore on Disk Utilily Mac? [closed]

Got a bit of vocabulary confusion. I want to re-format an external hard drive. But I'm not sure what the difference is between restore or erase. Does erase, removes all files. or not. I don't want to ...
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Suggestions on how to deal with a MacBook Pro that cannot be turned on

I bought a MacBook Pro 2016 in 2016. It served me very well for almost 4 years. Last year I suddenly couldn't turn it on. Tried everything on Apple's website but still didn't work. After about two ...
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Merge free space partition back to main volume

Can someone guide me how to merge my "free space" to main partition and how to delete and merge other unnecessary partitions?
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Is it normal that I am seeing 3 entries in Disk Utility with only having 1 internal hard drive?

I have a 2021 MBP with a 500 Gb hard drive. In Disk Utility I am seeing the following entries: Is this normal? Why is the same disk mounted in different locations, / and /System/Volumes/Data? And ...
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Why multiple macOS installation share settings?

This question has materialized after this strange interaction: multiple instances of macOS, installed on different hard drives on the same machine, share settings. Example: I have this MBR 16”, 2020. ...
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Can I delete 500GB worth of iNodes on my HFS+ 4tb Harddrive

I'm trying to free up some space on a 4TB hard drive and using TreeSize to scan all the directories, it came up with a HFS+ Private Data folder which has around 500gb of iNodes. I'm fairly confident ...
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MacBook Air won't boot MacOS from new SSD but works with Ubuntu

Losing my mind trying to problem solve this one. Have replaced an old SSD after it failed. Figured a new SSD would do the trick but after installing Mac OS on it and installing it in my MacBook all I ...
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Bootcamp Disk Partition Error (APFS error code 49187)

First of all, I downloaded the iso file to bootcamp and opened the Bootcamp assistant. After the support program was downloaded, the disk went to the partitioning stage but started giving an error. ...
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"Disk you attached not readable" - PMBR/MBR corrupted?

Background: Purchased 2 12TB WD Gold drives about 2 years ago and have been using them in an external enclosure without problem. After upgrading my Mac mini server to 11.4, the message "The disk ...
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Is there a RAID type that combines Zero and One?

Both of my 16tb RAID 0 Time Machine drives failed simultaneously last week! Probably because they were both bought on the same day over 10 years ago. In the hope of avoiding this crisis happening ...
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Big Sur: Time Machine couldn't complete the backup

I keep getting the following error in Time Machine: I am backing up my macOS drive (Macintosh HD - Data) to an external drive (EsEsDe), and I'm being told that the backup cannot be completed because ...
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2 votes
1 answer
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MacOS Reclaim free space on Disk for APFS container after deleting APFS Container [duplicate]

I have an 8 TB disk in my Mac. I had 2 APFS containers on it (disk7 and disk8). After deleting APFS container disk8, I get this: The space that the deleted APFS container disk 8 used up is lost and ...
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Installing Mac os x 10.11 El Capitan on clean hard drive using Windows

I have a Mac Pro early 2008, I've been using it for a while. It's 16Gb ram, 1Gb graphics card and 2 TB hard drive. I lost its original hard drive and now I have a clean drive. How can I install Mac os ...
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4 votes
1 answer
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Save storage space with clean install of macOS?

I just got a used Macbook Air with 128 GB drive. It had Big Sur, but after reset it's back at Mojave. So this OS must have been saved on the disk [Edit: no, it was probably downloaded]. Will I save ...
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1 vote
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MacBook Pro (Late 2011, A1297) hangs on 'promiscuous mode enable succeeded'

I am new to macOS and bought this late 2011 MacBook Pro second hand for someone. It booted once however now trying to get it to boot it hangs on en2: promiscuous mode enable succeeded I know that the ...
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Missing corrupted external SSD

I have an external SSD that has become corrupted due to writing files while the Mac feel asleep. There's nothing important on the drive, so I'm not worried about any data loss. My problem is that the ...
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-1 votes
1 answer
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How can I test the sustained write speed of a drive on macOS?

I would like to get an idea of the sustained read and write speeds of a drive that I have connected to my Mac. As you may know, most drives do not consistently read and write at the same speed as it ...
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Moved Photos library to iCloud, but it's still taking hard drive space

I recently noticed that my Photos is taking a large amount of storage space on my hard drive. I enabled iCloud Photos, and the upload looks to be complete, but the size of the library has not ...
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2 answers
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Bootcamp partition space disappeared after removal through Bootcamp Assistant failed

I'm running macOS 11.3.1 on my 2013 MacBook Air and wanted to remove my Bootcamp and reclaim the space. Had around 40GB free on my macOS partition and the Bootcamp one was 50GB. So I ran the Bootcamp ...
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1 vote
2 answers
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Dual-boot macbook air 2013 Kali & Mojave deleted kali now unbootable

Please excuse my english, I have a macbook air 2013 which dual-boots Kali and Mojave. The macbook when powered on boots into Kali and if i wish to use Mojave, i boot holding the option key. Recently, ...
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2 votes
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Recover data from corrupted APFS external volume

In less than 2 months, Finder has managed to corrupt 2 external hard drives and make the data inaccessible. First time I gave Apple the benefit of the doubt, but when it happened AGAIN on another ...
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1 answer
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Time Machine: Backing up the local drive onto an external AND a partition of that external to another external

My setup: I have an iMac that gets backed up via Time Machine to an external SSD that is partitioned to have storage for Time Machine and for working off a photo catalog in Lightroom directly from ...
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Can't create new partition (to increase windows partition size): internal error

I need to add some space to my Windows partition without erasing it. macOS Mojave, 10.14.6. According to this tutorial I was going to create a partition using Disk Utility, and then erase it and join ...
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1 answer
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Kernel_task running 100%+ which is throttling the MacBook Air

Thanks in advance for any and all help. My MacBook Air has come to a crawl because the kernel_task is running at 100%+. I have researched this issue extensively and have decided on following the ...
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1 answer
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SSD issue on macbook pro

I tried to install FreeBSD on a Macbook pro 2015(early) and it totally formatted my SSD. When I tried to rollback to macOS from the recovery menu, I cant see my SSD(although the laptop is working with ...
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2 votes
3 answers
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APFS with external hard drives (non SSD)

I bought a new external hard drive for my Mac. What is the best file system in 2021 to format the external hard drive? I would like to encrypt the hard drive and I only use it with Macs so I don't ...
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I can't see the volume "Macintosh HD" in Recovery mode for Catalina

I have a MacBook Pro with an external monitor, and I am trying to force that monitor into RGB mode by following these instructions: https://discussions.apple.com/thread/250732856. The instructions say ...
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1 vote
1 answer
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How to do after fsck_hfs fails to repair "invalid directory count" after 3 attempts multiple times?

I have an OsX installation that doesn't get past the apple logo. The progress bar loads and then shuts down midway. I have rebooted as single user mode and noticed that /sbin/fsck -fy complained that ...
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Need help configuring specs for new Mac and my software needs [closed]

I have to buy a new Mac and I have two programs I'm hoping to optimize with the new set up. I know I can ask them in the Apple store but I know there's a lot of smart peeps on here so would love any ...
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I can't add/resize a partition with more than 36 GB - there is plenty of free space

I wish to install Linux and shrink my existing volumes + add a new partition with 600 GB for Linux. diskutil list /dev/disk0 (internal, physical): #: TYPE NAME ...
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How to copy every single file and folder in Macintosh HD to an external drive?

I'm starting fresh with a new install of Big Sur. I'm trying to make a copy of Macintosh HD. Copy to an external drive. I keep getting this: "The folder “Macintosh HD” can’t be moved into one of ...
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2 votes
2 answers
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Can't access external SATA HDD via enclosure

Just bought EW7055 enclosure. When trying to connect to MacOS, I'm getting "not readable by this computer" error. Tried with MacBook Air+Catalina and MacBook Pro+BigSur. Same result. Here ...
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2 votes
1 answer
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Should I be worried about a case-sensitive data volume?

I've got a late-2014 27-inch Retina iMac with a 3TB fusion drive. It's at my workplace, which I haven't been to in over a year as I write this in mid-2021. For various reasons, the machine needed the ...
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1 vote
1 answer
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Determining File System of volume

I would like to know the FileSystem is used by Hard Disk/Volume Here one List with some FileSystems: HFS+ APFS NTFS exFAT extFS Ext4 Here the pictures... For me that information is not clear. ...
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Smartctl doesn't show SMART data for any of my NVMe drives

I have a number of NVMe M.2 drives which I connect to my MacBook Pro using a Yottamaster USB enclosure. However, when I try to view SMART data for any of these drives, I'm met with a generic error: $ ...
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1 vote
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Difference in free space on 2 mirrored drives?

I have two 16 TB external drives, formatted as APFS, attached to my MacBook Pro running Catalina 10.15.7. Drive A is mirrored to drive B (and I have verified they actually are mirrors using both ...
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1 vote
1 answer
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Disk Is Full Error When Copying Large Folders Onto Empty HDD

Bought myself a brand new Seagate HDD (formatted in exFAT). I tried copying over a bunch of folders to back up (160 GB worth) and I am met with the below error message. This is strange, because there ...
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2 votes
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Moving files from a Broken iMac

My 2013 iMac crashed and I can't access it any form. Not Safe Mode or Recovery. I removed the drive and want to access some of the files. It's old and was slated for replacement later this year. ...
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