Questions tagged [partition]

Creating a new disk formatting scheme or altering an existing scheme

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Using disk utility to expand an already existing partition MAC OS 10.15

I have an external Hard Drive that has around 5 partitions. Among them there is a partition, say, Partition 1 of 500GB. There is another partition, say, Partition 2 of 20GB. I want to get 100GB of ...
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MacOS partition formatted FFFFFFF etc after bootcamp install

My macOS partition has been changed to FFFFFFF format as seen in the attached images. There’s a similar question regarding this topic, however I would like to preserve the data on the partition in ...
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Need help to add a 3rd partition to external drive

so I have a WD external drive with 2 partitions and I'm trying to reclaim some space from one of the partitions and make a 3rd partition. Im using disk utility. Ive tried 3 times and I get the same ...
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Install backup of my old Mac on my new one

I got a new MacBook Pro with Catalina on it. I made a APFS formatted Copy of my old Mac and want to install it on a separate Partition on my new MacBook Pro so that when I start the new MacBook I can ...
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Macbook Pro (2015) Only Booting From GNU GRUB [duplicate]

I'm having an issue where my Macbook Pro (2015) does not identify the correct startup disk so I cannot boot from MacOS which I would like to do. I recently attempted to remove Ubuntu from my computer ...
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Can't boot to macOS anymore after resizizing macOS partition

After installing Ubuntu as a second system on my Macbook following this tutorial https://www.maketecheasier.com/install-dual-boot-ubuntu-mac/ everything was just working fine and I was able to boot ...
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APFS Partition Encryption Just… Disappeared?

When I installed my new hard drive (Samsung 860 EVO 500GB SSD) in September on my mid 2012 13-inch Macbook Pro (running Mojave), I also set up a partition to store sensitive files. The partition is ...
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Cannot partition external drive

I have an external drive that I just cannot partition. It's blank, so i have used Disk Utility and diskutil to erase, verify,repair etc., but nothing works. It gives me this sort of thing: Error: -...
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How to make Mac Partition boot again on Catalina/Ubuntu 20.04 Dual Boot?

I am using a 2011 MacBook Pro 15", this is the model with the AMD GPU problems and I have used the NVRAM modification to disable the AMD GPU and then Dosdude's patch to install Catalina. This is ...
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Is it safe to close laptop while “Shrinking APFS Data Structures”?

I just learned that the "shrinking APFS data structures" phase of creating a partition on a mac can take many hours, often overnight and I need to go from one place to another but I started ...
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Cannot resize partition Mac Os

I removed a container disk 1, in order to allocate more space to Container Disk 2. but still cannot increase the size of container disk 1 which is 100G. my disk capacity is 251G. Here is the detail of ...
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After Disk Utility crashed while adding a new partition, main APFS container (macOS + user data) became unbootable

I'm running macOS High Sierra on early-2015 Macbook Pro. I used to have two more partitions: one with Bootcamp, and the other one as a shared FAT32 folder. As far as I remember, at some point I made ...
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1answer
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How to format a Time Machine SSD so it can also host the backup for external booting

I want to split an external 1TB Nvme SSD into 500/500 partitions - so one partition can be a target for Time Machine backups, and the second partition can be used as a target to be an external ...
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MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports) running Mojave (10.14.3 (18D42)) is does not recognize external boot drive

I just got a new Macbook Pro, I was previously using an MBP (13-inch, Mid 2012) running Mojave. I have a 1TB SSD that has a partition with a Windows 10 installation (I followed this tutorial: https://...
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Is it at all possible to update Mac OS without sabotaging the bootcamp Windows installation in my scenario?

So long story short, I tried to install linux at some point in the past to my mbp, and end up damaging all partition tables and had to go to the Genius Bar to get it fixed. The thing is, I am somewhat ...
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Bootcamp: no bootable device – insert boot disk and press any key (Third Party Utility gdisk did not work)

I updated my 2012 mac pro today to High Sierra. I could not boot into windows 7 on boot camp thereafter. I got the dreaded black screen with "Bootcamp: no bootable device – insert boot disk and ...
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I have 2tb disk I created a 1TB partition to install windows. Now I can't merge that partition with my disk and I can't even find it [duplicate]

Now I just want to identify that disk again and merge with my MacOS disk so I can use the full 2TB again. That's my disk utility list : /dev/disk0 (internal, physical): #: TYPE ...
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1answer
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Copy apfs system partition to another mac

I have a MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports) that has broken keyboard and battery, so I will need to send it to Apple Store for service. I have another MacBook Pro with similar specs ...
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Unable to delete High Sierra partition

I have a partition I am unable to delete. Admittedly I'm in uncharted waters. I'v used Disk Utilites in the past with success, this time I'm stumped. The partition I want deleted is the one labeled ...
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How to overcome Mac OS installation errors?

I'm passing my old 2012 macbook onto my dad and I'm reinstalling Mountain Lion to wipe everything clean, but I'm encountering some problems in doing so. The installation downloads everything correctly ...
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How can I get a slice at Device ID disk1s5 to show up at disk1s1 (only the s part of the DeviceID

I'm reposing this question as per a comment on the previous post (for clarity). I've also now included my diskutil list results. My brand new MacBook Pro 16" had "Macintosh HD" at ...
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How can I rename Device ID from disk1s5 to disk1s1

My brand new MacBook Pro 16" had "Macintosh HD" at disk1s1 and "Macintosh HD - Data" at disk1s2. I didn't realize the USB-C cable that came with it wasn't Thunderbolt 3 so I ...
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Partition showing all FFFF after Partioining and computer not booting

You all that answer questions are SO amazing! Thank you for your very valuable time. I've seen other similar questions about this and the answer seems to be computer /HD specific and I don't know how ...
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Resize Windows NTFS partition using space from macOS partition

I would like to take 50 GB of Mac_drive and move it to the drive Photos_Backup. Is there any way I can do this? I would like to not wipe or delete the drive and keep all of the data on Photos_backup.
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Boot Camp Cannot Partition for Windows

I purchased a 2020 13in MacBook Pro about a week ago, and today I tried installing Windows using Boot Camp for school related reasons. While trying to install it, I got an error in Boot Camp Assistant ...
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Cannot resize APFS container even though there is a free space directly after it - diskutil error: -69743

I upgraded to a larger SSD (120 GB to 250 GB), and copied my existing mac SSD to a larger one with dd (clonezilla live usb). It is a hackintosh with a latest OpenCore 0.5.9. However, I cannot resize ...
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bootcamp doesn't recognize windows partition to remove; also cannot install command line tools

The problem started when I tried to install the newest version of command line tools (11.5). https://developer.apple.com/download/more/?=command%20line%20tools At the step where I was supposed to ...
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Add free space in Disk Utility

I want to take the free space of 200 GB and add it equally to the MacOS partition and the Windows-Bootcamp Partition that is currently 34.3 GB. Can someone please help me through this process? Thanks.
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Catalina can not access multiple partitioned HD over USB3 with FUSE

An external HDD has multiple partitions, NTFS, FAT32, ext3, ext4. When mounting external HDD over USB3, only the NTFS partition is visible in the apps Finder and Disk Utility. FUSE was installed on ...
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What is ASRNewVolume and why is it taking up so much space on my disk?

When I look at my Storage usage in About my Mac, I see a partition called "ASRNewVolume_1606" which is taking up 32GB of unusable space. I went to Disk Utility and I can't restore the ...
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Partition doesn't get removed?

I'm trying to remove the free space partition from disk utility. I get this error when I try to do so.
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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 ...
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A partition of my external hard drive doesn't mount on mac

My external hard drive has 2 partitions, partition 1 for normal uses and partition 2 for time machine back up. Both were working fine and I have so many backups in partition 2. Suddenly my partition 2 ...
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I cannot restore my external 1TB HDD Drive

I was running out of space on the APFS partition "Mass HDD" I have another partition that I recently formatted back to APFS too but I am unable to now get rid of it so I can restore the &...
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Encrypt external drive without format, no finder option

I have a LaCie Rugged 4TB drive that I want to encrypt. It's partitioned in two, 3,8TB "Rugged" (Mac OS Extended Journaled) and 200GB "Transfer" (ExFAT). I want to encrypt the &...
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is Windows not supporting NTFS Bootcamp?

So I couldn’t seem to partition my Late 2013 Mac with Bootcamp to run Windows 10.. it would just continue to show the partition part of the step for hours and hours. I became pretty sure it wouldn’t ...
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Cannot mount or erase or use first aid on a partition of WD hard drive

i wanted to use this partition for the Time Machine, i tried creating this partition on windows machine as it won't erase the data. using AOMEI app. it was later formated with FAT32. then i came to my ...
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Wierd problem after doing a triple boot OS-X, UBUNTU 20.04, KALI-LINUX

I've successfully did a triple boot on my Macbook-pro but somehow even after creating separate EFI partitions, all my grub files ended up in the first EFI partition. So I separated them manually. ...
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1answer
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Using Partitioned External Harddrive with Bootcamp

I tried connecting my external harddrive to my computer while booted in Bootcamp, but it wouldn't recognize the drive. I'm pretty sure this is because it was formatted for Mac computers. If I ...
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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'...
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Separating EFI partitions of Ubuntu 20.04 and Mac OSX on Macbook Pro

I installed Ubuntu 20.04 alongside OSX on my early 2015 Macbook pro by following this answer. And somehow I messed up. I created a separate 400MB EFI partition for Ubuntu but, the system automatically ...
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Cleaning EFI partition after dual boot on Macbook pro

I'm in the process of setting triple boot (OSX,Ubuntu 20.04,Kali-Linux) and as of now I did a clean install of Ubuntu 20.04 alongside MacOS by following a part of this. However I noticed something ...
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Partition limited and greyed out

I'm trying to partition my hard drive in order to install Ubuntu. I'm using MacOS Catalina. Upon selecting the device and clicking partition, I encounter that most of my hard drive space is greyed out ...
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Triple boot OS-X Catalina10.15.5, Kali-Linux 2020-2, Ubuntu 20.04 on MacBook Pro

This question is the next event of this post. https://superuser.com/questions/1561735/need-help-booting-into-mac-os-lost-during-triple-boot-mac-os-win-10-ubuntu-20?noredirect=1#comment2377602_1561735 ...
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Used Bootcamp to get Windows 10 on MacBook Pro (Mid-2012, Catalina) says “no bootable device - insert boot disk and press any key”

My late 2012 MacBook Pro is running Catalina. I used the Bootcamp Assistant to format a blank flash drive, copy my Windows 10 ISO file (downloaded from the provided Bootcamp assistant link) onto the ...
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Damaged Mac GPT with Microsoft partition

I've got external 3GB disk - that was formated under OSX, with partition (i guess exFat) so i could use it to move some data from my old windows 7 PC to Mac OSx I did it twice without problem, but ...
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Resize APFS partition and move it to another hard drive

I have a 500 GB external USB disk that contains a 465GB "APFS container", with Mac OS X Catalina, bootable (with the trick "Press and hold the Option (Alt) key immediately after turning ...
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Apple bootable drive converted to fffffff type and getting issue of resource busy

In tried the situation on OS volume shows as type 'FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF' But still getting error of resource busy. Even in tried diskutil umount disk0s2 still same error. ...
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Mac OS unfixable disk errors (Mismatch between extentref and fsroot & alloced_size of dstream does not match calculated size)

I'm trying to install Windows along side my Mac OS (Catalina 10.15.15). I'm using bootcamp, but it always get stuck at partitioning, telling me it can't partition the disk and check it and fix it with ...
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Win10 - Windows could not update the computer's boot configuration. Installation cannot proceed

I am trying to install Windows 10 on my MacBook Pro 15-inch 2019, (macOS Catalina 10.15.5) using Boot Camp. I have two different Win10 ISO files. They both gives me this error: Windows could not ...

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