Questions tagged [partition]

Creating a new disk formatting scheme or altering an existing scheme

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1answer
335 views

How to recover lost space after a bootcamp restore failed and APFS container failed to verify?

I gave 50GB to bootcamp for Windows 10. Today, I decided I no longer want Windows 10 bootcamp. I went to bootcamp, and clicked restored. Then it said something about being unable to recover the ...
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19 views

Skipping disk check with diskutil resize?

When running the diskutil resize command, is it possible to skip the disk verification step? While I realise this ordinarily a good idea to run, I'm currently struggling against an apparently ...
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34 views

SSD Partitioning upgraded MBA (Macbook Air Model A1370) SSD

I would like to 'ghost' a 128GB to a larger M.2 SSD. Based on my experience with upgrading a Macbook to a larger SSD, MS-Office will shutdown. The PC is a MacBook Air "Core i5" 1.6 11" (Mid-2011) ...
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1answer
75 views

can't boot into windows 10 bootcamp but partition is still good

I have a Macbook Pro 15" 2018 running High Sierra and I installed Windows 10 using bootcamp. I had duet display installed on both HS and Win10, and I installed Parallels Desktop 14 on the MacOS side ...
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1answer
56 views

Disk utility has no option to expand HFS+ volume?

I'm trying to expand my HFS+ volume (selected in picture) to use adjacent space, but there is no option to do it in disk utility (!) I just resized my APFS partition in order to create the free space,...
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2answers
81 views

Missing HDD space after removing Boot Camp partition

This is probably not the first case, but I have tried various methods to recover the lost 50 GB of space from different threads, but neither one of them work. (After removing Boot Camp partition, took ...
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1answer
57 views

iMac retrieve old linux partition after dual boot removal

On my iMac I installed a dual boot with Linux Mint. However, I realized that the videos were freezing some times, so I deleted the Linux partition. Now, the Mac is working normally, but instead of ...
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2answers
1k views

How to create “firmware partition” on HDD?

I have a problem with internal hard drive in my IMac, it doesn't work, but I have an external hard drive (HDD), and I want to run MacOS on it. I successfully installed MacOS and upgraded it to Sierra....
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1answer
112 views

After deleting kali linux partition, macOS partition startup Volume type FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF [duplicate]

First of all I know this problem and similar problems have been solved before, but I had tried the solutions from the other posts and I didn’t have luck. I know klanomath has a lot of experience and ...
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1answer
1k views

Mojave bootcamp assistant limits partition size

MacBook Air 2015, Mojave installed, 125 GB flashdrive We had a VM for windows, but with installing Mojave, deleted everything additional down to bare Mac OS and tried to install W10 with boot camp ...
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1answer
41 views

How to resize my partitions?

I have 3 partitions on my hard drive right now, and none of them are able to be resized (the apply button is greyed out when trying to partition). I also feel like my drives are messed up in some way ...
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1answer
31 views

Disk Space - Mac Book Pro

Disk Utility Info Shows: Volume capacity : 250,790,436,864 Available space (Purgeable + Free) : 18,254,333,896 Purgeable space : 1,570,408,392 Free space : 16,683,925,504 Used space : 230,210,576,384 ...
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1answer
144 views

(Mistakenly) Deleted all partitions except for disk0s2, can't mount or repartition

First of all, I apologize that I cannot remember exactly what version of Mac OS I am running, but I am 99% sure it's Yosemite. I recently tried to delete a second partition I had been using for a ...
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1answer
38 views

Erased both partitions of my hard drive and want to merge them. They show up as two different disks so I cant choose the partition option

External hard drive partitions showing as 2 different disks, can't merge or repartition. I have erased both and want to merge into one. EDIT: I have Reformatted both partitions to Mac OS Extended (...
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2answers
221 views

Merging APFS Containers using the Disk Utility Application

I recently deleted my dual boot from my mac, but I am now left with two partitions that I can't figure out how to merge. I would like it to be normal again with just one container: Macintosh HD. I'm ...
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1answer
57 views

Mac SSD Partition Type Incorrect

I have been using an external SSD as my primary drive on my iMac for over a year. I'm not sure if it got unplugged or nudged while powered up but it now doesn't work. I can mount the drive but I get ...
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0answers
49 views

Help! kernel_task / Mac OS System eating hard drive space

I have a very unfortunate problem. My Mac OS System is eating free disk space right before my eyes till my system becomes unresponsive. I already deactivated and deleted Time Machine backups. Finder ...
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2answers
219 views

MacBook Air not booting, Boot loader not available, Internet recovery not available

Recently I tried to factory reset my Mid 2012 MacBook Air. In order to do that: I booted into Recovery mode with Command + R. Then navigated to Disk utility and Erased Macintosh HD. Then I restarted ...
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1answer
35 views

How to resize main partition to full available physical space?

I had two partitions: Machintosh HD with 250 GB space BOOTCAMP with 750GB space Later my Machintosh HD had a problem where it went into a boot loop. So to recover, I went into recovery, erased the ...
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1answer
33 views

I am trying to clone a 2TB drive that has mac os x 10.6.8 onto a smaller drive but dont know what I am doing

I have a Mac Pro that I cant install an OS onto at the moment because I do not have snow leopard. I do have a bootable 2TB Western Digital drive that comes from an identical Mac Pro that has 10.6.8 ...
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0answers
21 views

How do i delete my partitions on my mac? [duplicate]

I have been unable to get rid of all the partitions in my drive, they can't be seen inside of my disk utility and i wondered if anyone could help me. Diskutil list returns: /dev/disk0 (internal): #: ...
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1answer
202 views

MacBook Pro - can't boot into Windows, how to fix the MBR?

Following the post FFFFFFFF problem with hybrid partitioned drive, not able to fix with the guide in other topics, I was able to fix the FFFFFFFF partition problem and managed to boot into macOS, and ...
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1answer
771 views

diskutil list shows 20 disk partitions, I only know 3, what are the rest?

Following the post FFFFFFFF problem with hybrid partitioned drive, not able to fix with the guide in other topics, diskutil list gives me the following big list of disk partitions, what are the /dev/...
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1answer
150 views

FFFFFFFF problem with hybrid partitioned drive, not able to fix with the guide in other topics

Like many other uses who reported the same problem, I tried to install and delete Ubuntu in my 13' mid-2014 MBP, messed up and got FFFFFFFF-FFFF-FFFF-FFFFFFFF partition, tried to follow the solutions ...
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0answers
49 views

Wrote over partition map, now unable to boot even after attempted repair

Long story short - I was attempting to install bootcamp on my MBP and I suppose I wrote to a partition on my main ssd instead of the secondary ssd as intended. I attempted to create a new partition ...
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36 views

How to make Boot Camp partition bootable again after update?

I use an early 2011 MacBook Pro 15". It has partitions for Mac OS 10.13.6, Windows 10 and Ubuntu 18.04. Recently, when I tried to update Mac OS, the update failed with a message warning that the ...
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0answers
45 views

Enlarge APFS container with free space

The container scheme of my hard drive is the following I have more or less 87 GB free, that are not contained in this list. I have removed the container of size 87 GB with the command sudo ...
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3answers
106 views

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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2answers
73 views

Need Help Fixing Partitioning after Deleting Core Storage Booter and Windows

I know there is a plenty on the Internet, but I am afraid to touch it since the data on my partition is valuable for me now. My situation: I have MacBook Air with OS Yosemite 2011 11" (128G). I ...
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0answers
39 views

How to recover data after Bootcamp utility crash HFS+ Encrypted?

There is internal SSD: 1/4 - HFS+ - Secondary System Volume with macOS Sierra Audio HD 1/4 - HFS+ - Shared Volume between two systems Shared HD 1/2 - APFS - Main System Volume with macOS Mojave Mac ...
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1answer
520 views

How to install High Sierra on a second partition on a MacBook which already runs Mojave?

I am running macOS 10.14 Mojave on a MacBook Pro with a single APFS volume. For testing I would like to intall macOS 10.13 High Sierra on a second volume / partition to be able to switch between the ...
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0answers
242 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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2answers
1k views

how to covert macOS Extended Journaled to apfs?

My Macintosh HD is running Sierra from which partition for mojave was made which doesn’t has APFS option. Installed Mojave 10.14.2 on a MacBook Pro mid 2012 which has HDD and volume formatted in ...
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1answer
291 views

Time Machine partition won't mount

I have an external drive with two partitions, the first of which I use for Time Machine backups. The other day I got a message telling me that my drive had been unplugged without being ejected first (...
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1answer
588 views

Lost space after removing bootcamp

So I removed bootcamp and now there is a partition called "free space" that I can't remove. Here is my output from diskutil list: Here is the screenshot from disk utility showing the partitions: ...
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0answers
80 views

Bootcamp not enough space [duplicate]

I am trying to install Windows using bootcamp in my Mac (Mojave 10.14.3). However, bootcamp tells me that I do not have enough disk space while in fact I have. I haven't got any local snapshots. In ...
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0answers
323 views

Bootcamp - can't save Windows support software, not enough space on available disk

So I keep getting the above error at the following step, Downloading windows support software - OK Partitioning disk - OK Copying windows files - OK Saving windows support software - ERROR I have ...
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1answer
148 views

How to fix CoreStorage not mounting? Broken GPT, GUID, volume etc?

I have an external hard drive with two partitions, each one formatted as "OS X Extended (Journaled, Encrypted)". The second partition mounts and asks for a password, but the first one does not. The ...
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1answer
92 views

Asign unallocated free space on external volume to (new) partition OSX

I formated a external USB drive to mount with 10 different volumes. (Actually I forgot how i made this work) The drive will not show as being partitioned in drive utility in OSX but show all volumes(...
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1answer
178 views

Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF no backup [duplicate]

trying to delete a disk partition, the disks utility has given an error and now the Macintosh HD volume was not in APFS. But of course, being different, does not match anything with mine. It also ...
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2answers
23 views

can't boot on win10 without alt (option)

on an air macbook air 2017, I deleted OSX and installed only Windows 10 from a usb cd drive. Everytime I boot the computer, I have to push on ALT to select the only one item: Windows. Otherwise I get ...
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0answers
26 views

Blocking Disk Utility? [duplicate]

I'm looking for a way to prevent someone from creating a new partition on my hard drive in order to get around restrictions I've set. I've already tried setting an administrator account to no luck. ...
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0answers
100 views

Completely clear/delete/erase/wipe/destroy a USB drive using the gpt command line utility?

I want to completely delete all GPT (meta)data off an USB drive, so I can create a fresh new GPT. So I do: sudo gpt destroy disk3 No errors, seems OK. However if I do: sudo gpt -r show disk3 I get:...
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2answers
1k views

Can't resize APFS container

On a 120GB SSD hard drive in a MacBook only 68.68GB are available. The missing 51.32GB are not even shown as a free space. Here is what the output of Disk Utility looks like: As you can see on the ...
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3answers
3k views

Cannot partition w/ Boot Camp Assistant on macOS Mojave

Late 2016 Macbook Pro running Mojave 10.14.3, APFS-formatted (ugh). I have run Disk Utility to verify my disk, and I've run fsck -fy from single-user mode several times. Both of these have reported ...
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1answer
77 views

Recovering OS X partition after FFFF volume error and gpt add error

I am currently running a 2014 13'' rMBP. I recently tried to delete a Bootcamp partition in Disk Utility. When I tried to reboot my system, it did not boot OS X (Mojave) and instead could only boot to ...
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0answers
47 views

Bootcamp assistant cannot partition drive

I am trying to install Windows 10 1809 via bootcamp assistant on my 2016 MBP and it keeps showing me the following error: Here is the output from diskutil list: Carsons-MBP:~ carsonclark$ diskutil ...
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0answers
958 views

Problem installing Bootcamp (Windows 10 on Mojave)

I'm trying to install Windows 10 on my non-Retina Mid-2012 MBP. It previously had a Bootcamp Windows 7 that I had to remove manually by deleting it's partition via Disk Utility. I'm trying to install ...
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0answers
33 views

How to remove a Windows 7 bootcamp partition from Mojave? [duplicate]

I installed Windows 7 via bootcamp several years ago with much older version of macOS but now when I want to delete it via Boot Camp Assistant, it doesn't recognize my bootcamp to remove and also ...
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0answers
20 views

Can't see newly created parition (and formatted as ExFat or NTFS) in Bootcamp (Windows 7) [duplicate]

I'm trying to resize my Bootcamp partition and finally shrunk my AFPS partition smaller and formatted the new partition to NTFS (and later to ExFAT) in hope to be able to see it in Windows and merge ...