Questions tagged [partition]

Creating a new disk formatting scheme or altering an existing scheme

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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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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 ...
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472 views

Failed paritiong resizing partition in Mojave via Disk Utility (Planning to add it to Bootcamp) [duplicate]

(Using Mojave 10.14.1 on MBP Mid-2012) I was trying to resize my AFPS partition to add it later to my Bootcamp partition (in Windows) but the operation failed. What I did was to use Disk Utility's ...
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252 views

Extand main APFS partition on MacOS Mojave 10.14.3

As it can be seen from the screenshot below my APPLE SSD is of size 500GBs, but my Apple_APFS Container disk1 is of size 450GBs. There was a Container disk 2 of size 50GBs before but I successfully ...
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Disk Utility First Aid in recovery failed to restore volume to original state

I was trying to repair permissions today on my Mac so I ran the Disk Utility's First Aid on my drive and it said that there was an Invalid Index Key and that my disk was corrupt and I needed to run ...
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1answer
183 views

Unable to use disk removed from Synology NAS with a Mac - wrong partition size showing

I have 2 x 3TB disks I've removed from a Synology NAS. When I try to mount these disks on OS X, they show as only having a single 800GB partition. I've tried erasing in the Disk Util app, but it only ...
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2answers
39 views

Is data in an APFS container erased after main partition is reformatted?

I am trying to create a data partition for my user account so as if I need to re-install my computer, I do not lose any data that is on the other partition. If I had the following layout on my 512GB ...
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1answer
56 views

Professional Data Recovery solution: what to use?

I have a LaCie P9227 2TB drive partitioned 500GB for Time Machine and 1.5TB for Archive purposes. Two days ago the disk started failing (DriveDx utility indicated it as Failing), the TM partition ...
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1answer
25 views

How to partition free space in a Mac SSD

I have a Mac with a 250Go SSD. I used to have a Windows partition, but as I had no longer any use for it I wanted to free up its space. My error was here : instead of using BootCamp helper to delete ...
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diskutil mac error 69519

I needed to delete my bootcamp partition but bootcamp wouldn't let me, so I deleted the partition and also the recovery partition of windows from diskutil. The problem is when I try to add the free ...
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1answer
425 views

Tried to fix filesystem type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF and probably made it worse

I have a MacBook Air 11 inch which I recently tried to install Linux on with a swap partition and a root partition. In my stupidity I used the “disks” program under “try ubuntu now” to delete the ...
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GUID Partition Attribute not working on MacOS

I'm trying to prevent automount on a device. The device contains only one FAT32 GPT partition. I have set the GUID Partition attribute to 63 using gdisk (i.e. do not automount). I have also tried ...
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1answer
708 views

Reclaim removed APFS partition disk space

I've tried to use a case-sensitive file system, but I had some trouble. So I've split the hard drive into two partitions, added a case-insensitive volume and cloned it. That worked perfectly. Then I ...
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1answer
312 views

Missing HDD space after diskutil command

I wanted to merge 2 partitions disk0s2(unused space) and disk0s4(OS volume) My disk looked like this: /dev/disk0 (internal, physical): #: TYPE NAME SIZE ...
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1answer
98 views

can't shrink the system partition in order to clone and swap disk

I wanted to swap my 1TB old iMac HDD to a 1TB SSD but apparently it's not that easy with diskutil under mojave recovery system. From a disk to disk it's impossible since the disc is complaining to not ...
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0answers
117 views

Lost the Option to Boot into macOS After Quitting Internet Recovery (Bootcamp)

Background story: I have a MacBook Pro ("Core i7" 2.6 15" Touch/Mid-2018 2.6 GHz Core i7 (I7-8850H)) with Windows 10 installed using bootcamp. I am not sure about the macOS version, but it must be ...
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296 views

My Fusion Drive Partitioning Seems Wrong/Strange/Wonky

See below for diskutil list of my 3TB fusion drive (iMac 27" late 2014) running High Sierra: I assume disk0 is the HD and disk1 is the SSD, and disk2 is the virtual combo that is mounted as my "HD". ...
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1answer
563 views

Fix a sometimes happening prohibitory sign 🚫

Well, I know there's an answer to a similar question here: Getting a 🚫 sometimes on boot, but this is slightly different. My system is running on external drive. Actually on an external ...
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1answer
186 views

I'm Unable to Boot into Mac OS Partition, partition type FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF [duplicate]

I've seen similar answered questions like this. I'm unable to boot into my MacOS partition. Long story short, I had Windows BootCamp, removed it and then later installed Ubuntu Linux, then tried to ...
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1answer
246 views

The startup disk cannot be partitioned or restored to a single partition. Windows 10 and Mojave iMac Fusion Drive

The startup disk cannot be partitioned or restored to a single partition. The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp ...
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FusionDrive not mounting because the GUID Partition is messed up after removing one physical drive

so I got a really delicate situation going on. I exchanged my mechanical HDD with a SSD and turned the 1TB HDD into a external USB device. So far so good, everything works like a charm. Yesterday I ...
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Not able to access data/partition on HDD after removing it from iMac

hope I'm right here. I'm quite lost as of now. tl;dr Can't properly access data from an 3 TB HDD I removed from my dead iMac and hooked up via USB (2.0) to the new one. Recovery software tells me, ...
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2answers
184 views

Resize system partition?

I found some questions like that here but it doesn't help me. I use Paragon hard disk manager & disk utility to resize it and have screenshot like below. But I can't add free space to main osx ...
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1answer
56 views

Problem when extending windows partition using Disk Utility

I tried to partitioning the macOS partition to have some space to extend the Windows partition using Windows OS. When trying to switch back to Windows OS, I could not find it. Even when restarting and ...
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1answer
178 views

`diskutil list` shows type Windows_NTFS, but `Disk Utility.app` shows type ExFAT. So What is the type?

I just bought a new external ssd drive (connected to USB3 port of Macbookpro). and then run $ diskutil list /dev/disk1 /dev/disk1 (external, physical): #: TYPE NAME ...
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1answer
27 views

Unable to partition internal Toshiba drive for OS X re-installation,

Trying to resurrect an older MBP and I'm at my wit's end on how to go about it. Hoping you all might be able to shed a helpful light on things. The MBP in question is circa 2012 and immediately boots ...
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1answer
2k views

Installing Ubuntu on Mac with macOS Mojave

I tried to follow steps in the article Installing Ubuntu on Mac with macOS and Windows already installed. But I have a different file system. And cannot resize with diskutil. diskutil resizevolume ...
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158 views

Manual Windows 10 installation on Macbook Pro mid 2014 using unetbootin

Just some some context before i ask my actual question. I know my mac is older so I have been using a USB to use bootcamp. I have tried installing Windows 10 using the Bootcamp assistant multiple ...
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149 views

How to make a bootable USB drive from a dmg containing multiple partitions

I have a USB flash drive of the Mojave installer from which I created a dmg containing two partitions: the installer partition and a custom EFI partition. The drive booted and installed fine. How do ...
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43 views

The startup disk cannot be partitioned or restored to a single partition. Windows 10 and Mojave 10.14

I installed windows 10 through bootcamp and I want to remove the partition. However, upon opening up bootcamp assistant it said that the startup disk cannot be partitioned or restored to a single ...
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150 views

Create a partition that both Windows and macOS Sierra can access via Disk Utility

After I installed macOS Sierra I decided I wanted to also have Windows for gaming. I installed Windows 8.1 via Boot Camp Assistant and gave it about 110 GB of space. After some time I realized that ...
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Can't partition HD after failed boot-camp install

I have tried to Install Windows using Boot Camp, so I've allocated a partition for it (50gb) It didn't work, and now I can't get it back using "Disk Utility" and also "Boot Camp" continuously keeps ...
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214 views

Invalid number of allocation blocks in Disk Utility Repair

First of all I hope @klanomath is still active over here as I'm having a similar issue as described in following thread: Partition on HFS+ external drive: "Invalid number of allocation blocks&...
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38 views

Bootcamp the startup disk cannot be partiitoned

I cannot install Bootcamp because it gives me an error message of "The startup disk cannot be partitioned". This is the result of diskutil list /dev/disk0 (internal): #: TYPE ...
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1answer
74 views

MacBook Pro HDD in Gparted - Main partition “unknown”

I've been given a defective MacBook Pro, seems to be a model from around 2011 - still has a DVD-Drive and a normal HDD. The MacBook had water spilled over it; so I disassemed it and took the HDD out ...
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1answer
107 views

Windows 10 won't install in EFI Boot mode when hybrid partitions are present on Mac-Pro 5.1?

I am trying to install Windows 10 in EFI mode on a Mac Pro 5.1, to co-exist with Snow Leopard, also installed in EFI mode, in GPT partitions, and Windows XP, installed in BIOS mode, in an MBR ...
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2answers
756 views

APFS Volume not claiming available APFS Container space

I'm at my wit's end with this, and I can't find anything about it in documentation or questions, so I thought I'd ask one. I had an APFS Fusion Drive that included two drives: (120+500) GB. I cloned (...
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253 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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1answer
45 views

Can't merge “Free Space” with Macintosh partition

I have deleted a messed up bootcamp install and now I am stuck with 50 GB in "Free Space" that I am unable to "delete" or merge with my Macintosh partition. Anyway to do this?
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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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1answer
172 views

Resizing a partition to increase into space before itself

Simple Explanation: Expanded Explanation: All I want to do is delete disk0s9 and have disk0s4 resize and take up the empty space. I want to Delete container disk4 (disk0s9). I don't want the ...
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1answer
42 views

Crash during Boot Camp restoration. How do I remove my Windows partition?

As mentioned in the title, my OS crashed while removing the windows partition. Now Boot Camp Assistant doesn't recognize the pre-existing Windows partition anymore. See diskutil results below. How ...
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1answer
442 views

how to turn on hardware virtualization on Macbook pro with BootCamp with no OSX

I haven't been able to turn on hardware virtualization on a Mac with BootCamp (Windows 10). All the solutions I have found say that I need to restart and choose OS X ( including How to turn on ...
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1answer
393 views

Unable to boot into Mac OSX after updating dual-boot Ubuntu, Partition Type FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

On my Mac OSX Mojave machine.. I installed Ubuntu 18.04 to attempt to dual boot on the internal Apple SSD. Worked for a while, but after some updates to Ubuntu... hitting the power button boots up to ...
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1answer
371 views

MacOS partition shows up as FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF (Mojave)

I suspect this this may be a duplicate, but I'm not sure what I should do considering almost everyone else has another macOS version or other partition size and I'm not sure how to generalize another ...
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1answer
33 views

Flash drive no longer visible within Windows

I recently formatted a USB flash drive on my Mac (El-Capitan) and made a bootable Mojave installer drive. It worked great and there were no issues, until I needed to reformat it to use on Windows ...
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1answer
289 views

Is it possible to recover a deleted APFS volume?

Nothing’s been changed or formatted. The “container” is not mounted and the volume I accidentally deleted still shows up in the Boot menu at startup. How would I go about recovering this APFS volume?...
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After a failed bootcamp installation of Windows 10, I am stuck with multiple partitions

I canceled a bootcamp install of Windows 10 because it was taking AGES to work. Anyhow, I now have a partition on my MacBook I cannot seem to get rid of. If there is nothing on the extra partition (...
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And yet another… corrupted partition table

I have an external hard drive that has two partitions and one of them is not being mounted. The one that is not being mounted has data I would like to recover. Right before the problem I had installed ...
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How to fix misnamed filesystem in GPT?

I restructured my drive in Windows messing up my partition table as the software I used did not recognize apfs. In Mac recovery mode disk0s2 is recognised as a Linux Filesystem. It won't let me run ...