Questions tagged [partition]

Creating a new disk formatting scheme or altering an existing scheme

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How to Delete Partitions

I recently purchased a used 2017 iMac 27". It has a 2TB HD and the guy who previously owned ran Windows on Bootcamp. I tried to use the Disk Utility app to merge the partitions but no luck. I keep ...
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macOS Mojave cannot upsize disk APFS

I am trying to resize my disk (make it bigger in size), but I do not know how. I search a lot of tutorials and read a lot of forums but nothing seems to work. /dev/disk0 (internal, physical): #: ...
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Give Free Space from “Free Space” partition to a specific partition

After some issues with my internal disk, I moved my OS on an external drive which is split into : - (disk2s2) Macintosh HD (Apple_HFS): my operating system; - (disk2s5) Volume 1 (Apple_HFS): My ...
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Mac HD won't mount - FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF Error [duplicate]

Same error as a lot of users here, but I'm running Catalina, so I'm not sure if that changes things and I would rather make sure I'm going about it the right way so I don't make things worse. I ...
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How can you tell / identify which macOS Recovery actually boots with a dual macOS installation in one APFS partition/container?

This is a question about after installing more than one version of macOS in a dual/multi-boot scenario, all installed in the same APFS container/partition. In the answer to APFS - Is it possible to ...
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Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF appeared when tried to remove Linux(UBUNTU 18.04) from dual boot from Mac

I earlier had dual-booted my MacBook Pro(2013), Catalina OS with Ubuntu 18.04 LTS. I wished to remove it, so I erased the unwanted partition in disk utility and restarted my mac, it did not show the ...
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75 views

How to install a second Win10 on a Macbook Pro 2019 with Catalina and Windows 10 already installed?

Since there is no real answer to this really specific case i hope someone here will be able to answer with detailed instructions on how to achieve this. I have a MacbookPRO (2019) and here is what i ...
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1answer
64 views

Unable to mount partition

I've combined two partition formatted as NTFS for dual boot system with bootcamp. I did this while running windows using a special program to adjust partitions. but after a necessary restart according ...
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1answer
37 views

Booting from MBR USB on Mac

I have a MacBook Pro8,1. For experimental purposes I've installed Windows 7 to USB (it's NOT an installer, a real OS on USB) via WinNTSetup on other PC. When I'm trying to boot from the USB with the ...
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Stuck on “Partitioning disk…”

I have been trying to download bootcamp for a while now, but every time it gets stuck on Partitioning disk... and "The system may be unresponsive" I have already looked at applesupport for this but ...
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Hard drive without partition scheme

I will try to be short with this. I have a 3tb hard drive that shows likes this: frosti:~ abelpinate$ diskutil list /dev/disk0 (internal, physical): #: TYPE NAME ...
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How to increase the size of the system partition (container) on Catalina?

This is on a Macbook Pro with a 250 GB disk that was originally split into two partitions, roughly 90 (Macintosh HD) and 160 GB (disk2). The machine is now on Catalina with the first partition being ...
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Startup disk doesn't show my windows partition

Macbook Pro late 2011 running High Sierra (10.13.6). I have swapped my HDD for an SSD and placed my HDD instead of my optical drive. I would like to install a Windows 7 partition on my SSD using ...
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51 views

MacOS GPT Messed up File System ('FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF')

I had tried dual booting Linux and macOS, and when I rebooted my computer the OS volume shows as type 'FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF'. I tried following OS volume shows as type 'FFFFFFFF-...
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Create encrypted partition for Time Machine from command line using diskutil or gpt, instead of Disk Utility?

I can use Disk Utility to create an encrypted partition, intended for Time Machine backups. I would choose the Mac OS X Extended (Journaled, Encrypted) format. However is there also away to achieve ...
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GPU problem-fix not working for partioned hard drive

My MacBook Pro early 2011 developed the same problem many people have: it stopped starting up. Trying to follow the instructions in this post: GPU problem - Boot Hangs on Grey Screen and partly this: ...
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Cannot mount HFS partition - imaged using dd

Running into an interesting problem that I've been at for hours: I imaged the data partition of a hard drive (fs type hfs) using dd. I did not image the entire drive (i.e. I am missing the MBR). I ...
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Is it possible to repair a Mac external hard drive's partition table, without access to a Mac?

I tried to create an NTFS partition on an HFS+ formatted Mac external hard drive, from within Windows. This hosed the GUID table. In order to try to recover the files, I had to turn off journaling, ...
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76 views

How can I properly remove Linux and resize the partition if it's showing FFFFFFFFFFFF-FFFFF-FFFFF without turning off my Macbook?

Having deleted both linux partitions from my device using sudo diskutil eraseVolume free none disk0s4 and sudo diskutil eraseVolume free none disk0s3 In an attempt to then have both partitions ...
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MacOS Recovery GPT add “No Space”

I recently messed around with running linux on my macbook. Big mistake. After resizing a partition, the Macintosh HD vanished. I have followed some instructions to get it back, but now I'm stuck at a ...
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111 views

How to rebuild Mac partition showing unexpected GPT table size

I'm attempting to rebuild a Mac partition for an external 3TB Hitachi hdd that recently failed to mount. Apart from an unexpected GPT table size which I'll show later, this drive issue seems similar ...
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244 views

How to uninstall Linux from a MacBook properly?

There are a lot of questions by those who have already bricked their macs trying to remove Linux so their questions usually stem from a position where one of the disk is labelled FFFF-FFFFFFFF-and ...
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How to hard format sd card on macOS?

I try to make sd card with raspbian software, but on my windows PC from work i don't have enough permissions to do it. Unfortunately it formatted into multiple partitions. Now i can see only one in ...
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Problem cloning the startup disk of a MacBook Pro running OS X 10.11.6 El Capitan

Before putting my question in detail, see Problem section below, I'd like to sketch the context in which it appears. Hardware-Software-Environment MacBook Pro Early 2015 running OS X 10.11.6 El ...
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How do I remove/delete a (possibly corrupt) partition from macOS High Sierra?

I have a partition (disk0s2) I can't seem to get rid of. The size is very tiny around ~3KB. Disk Utility is unable to remove/erase or repair this partition. Also, the '-' button seems to be disabled. ...
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Mac Partition won't boot after Bootcamp Partition Resize

I made a huge mistake. I resized my Bootcamp Windows Partition and messed up with my Mac partition; without any data, since my sister needed my backup hard drive for something urgent. To recover the ...
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Need help repairing mac partitions

In the process of trying to create a bootcamp partition I messed up my partitions. At this point, I just want to merge the empty 40GB drive with my main one, giving that storage back. Here is what I ...
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Can't remove a hidden bootcamp partition [duplicate]

I had a bootcamp partition that I'd wanted to remove. It seemed like it'd been removed using bootcamp, but it is still taking up a big chunk of space in the System storage, and now I can't find it to ...
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Is it safe to erase disk1s1 APFS Volume?

Bought a 2nd hand 2016 MacBook Pro with Catalina installed. Went back to Mojave (because some SW does still not work properly in Catalina). Now is see disk1s1 as empty APFS volume and disk1s5 as the ...
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110 views

How to delete APFS Volume

I am trying to delete a volume and have one whole disk left, without volumes or partitions. I played around with partitioning and deleting multiple times and now it seems, I can't do anything. This ...
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Mac Hangs on boot, Macintosh HD partition intermittent failures

I have the following problem: My 2016 MacBook Pro (El Capitan) hangs on boot. The progress bar loads to near completion, after that it stops. The laptop heats up and eventually shuts down. What I ...
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Recovering a partition not shown in Disk Utility

My MacBook Pro 2012 has 500 GB of HDD out of which 250 GB were used to install Windows 10. Today, I tried deleting the Windows 10 partition using Boot Camp. In the middle of the deleting process my ...
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GPT disk error installing Windows 7 64 bit on MacBook Pro 13 mid 2010 with High Sierra

I have spent 4 days now, trying to install Windows7 64 bit on my MacBook Pro 13 mid 2010 with High Sierra installed on it. I had installed in many years ago and it was really easy. I removed it when I ...
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Should I partition an external drive before or after using Time Machine?

If I partition my external drive into two parts, I'd like to be able to remove the partition at a later time in case I decide Time Machine should take up the whole disk. Similarly, if I'm using Time ...
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89 views

APFS, two data volumes on a single OS partition for dual booting

I'd like to be able to switch between two Data volumes on the same macOS installed partition. My thinking is that I could have one data volume for home and one for work. This would, essentially, ...
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Recover accidentally reformatted encrypted drive

My external USB-HDD formatted in HFS+ (journaled) and encrypted was reformatted yesterday by accident to HFS+ (journaled) - but no encryption. The standard data rescue tools fail to find any of the ...
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iMac 27“ Mid 2011 - Can‘t reinstall macOS

I‘m trying to reinstall macOS Sierra on my Mid 2011 iMac. I have a single 1 TB HDD and single partition called „OS X Base System“ that takes up 999.35 GB‘s. When I try to partition the Base Volume I ...
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How can I encrypt a 128Gb SD Card in Sierra (10.12.6)

I cannot erase a MicroSOCX SD Card (128GB) using a GUID partition map. I only get errors. Without a GUID map, I cannot partition either. I have tried it on both the main volume and the dependent ...
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Uninitialised disk after erasing one partition on HDD

I have a 1 TB HDD and I had three partitions on it. Two partitions had data on them and one was empty. However, when I was trying to move some files to the empty partition, it gave the error "file ...
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Resizing APFS partition after cloning [duplicate]

After cloning my 500 GB SSD on a new one of 960 GB, I'm having some issues to resize the partiton. Here the diskutil list output: /dev/disk0 (internal, physical): #: TYPE ...
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1answer
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Cannot use diskutil verifyVolume, trying to boot back into macOS after deleting Ubuntu partition

After deleting my Ubuntu partition and restarting my computer, I am unable to boot into macOS. I've followed the steps outlined here: macOS partition startup Volume type FFFFFFFF-FFFF-FFFF-FFFF-...
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Bootcamp Partition Help - Container Disk issues? - Trying to get SSD to original state :)

I mistakenly erased my Bootcamp drive through Disk Utility, and now my partitions and SSD are partitioned incorrectly. Trying to get my SSD back to its original state - no partitions. data loss is not ...
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Resizing APFS container and partition

I was tring to increaze the size of the Windows 10 Boot Camp partition with Disk Utility but I made a mess. I decreased the Mac partition with Disk Utility which created a new partition. After that ...
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2answers
81 views

Recovering HFS+ partition

I have 2TB Toshiba 3.0 HDD. (1863 GiB). I have rewritten accidentally the GPT partition table and I need to recover it. Old partition table. I need to recover it It had FOUR partitions. GPT table ...
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93 views

Bootcamp “Missing Operating System” on external drive

I've been using an external disk drive to use boot camp on my MacBook Pro (13-inch, Mid 2012). It's 1TB, so recently I added a partition to store extra files on it (350GB for boot camp, 650GB for ...
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How to fix prohibitory symbol on startup?

I have a Macbook Pro Mid 2012 with an SSD installed. The laptop was running a version of OS X 10.13 (High Sierra). The computer froze while I was working on it and I was forced to do a hard reset ...
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Missing disk space after failed bootcamp partition

So a bootcamp installation failed and now I'm out 400gb of space on my drive. I have looked and found solutions but unfortunately I don't have the sufficient know-how to apply them to my situations. ...
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290 views

Bootcamp says Disk Could Not Be Partitioned on Catalina Version 10.15.2

I have macbook air 2015 on Catalina Version 10.15.2 . So previously I had ran into this issue MacBook filesystem FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF after deleting linux partition and thank god I ...
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MacBook filesystem FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF after deleting linux partition [duplicate]

So I have MacBook Air late 2015. I’ve been using bootcamp for a while. Yesterday I installed rEFInd to use triple boot for Linux. Made partition for Linux. Later I decided to delete this partition ...
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1answer
25 views

How to use a 2 TB external hard drive containing existing data as TimeMachine backup storage without losing data already on it?

I have an 2 TB external hard drive. It is formatted as NTFS format, supported by ntfs-3g which is installed using Homebrew. There is already about 500 GB data existing on it that I need to keep. I now ...

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