Questions tagged [apfs]

A filesystem developed by Apple Inc first introduced in macOS Sierra 10.12 Developer Release and for public use in macOS High Sierra 10.13.

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702 views

Mac producing corrupt “dataless” local snapshots

On my MacBook Pro running 10.13.6 and formatted with APFS, I'm periodically seeing an issue where the machine is frozen when I try to wake it up, and requires a hard reboot to use again. After some ...
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1k views

Unable to find an APFS Container Reference after fixing FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF error

After following this guide and giving my partition the proper GUID, i can't access it. Is there a way to recover the container reference its supposed to have or at least a way for me to extract data ...
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277 views

Is it possible to clone directories in APFS?

APFS supposedly features cloning for files and directories I would like to figure out how this works, but I can't find a way to use this feature. The only man page which seems vaguely relevant ...
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How often does the Recovery Volume mount itself?

From my understanding about the new APFS System for macOS High Sierra, the Recovery partition disk1s3 will shortly mount and unmount itself to check for updates in the background. Ive noticed from ...
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723 views

Encryption of APFS volume won't finish

A few weeks ago I told all of my three external hard drives to encrypt. This went well, macOS (10.13.4) converted them to a APFS formatted encrypted volume, except for one drive. This drive doesn't ...
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443 views

Disk quota not getting set in APFS file system (MacBook Pro, macOS High Sierra (10.13))

I tried enabling quota on a file system(type APFS) mounted using this command quotaon /dev/disk1s1 but it throws: /dev/disk1s1/ not found in fstab. Previously it used to work in HFS type file system. ...
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537 views

Howto recover APFS without container (new APFS bug)

I recently formatted all my external drives to APFS. The result was this: diskutil list /dev/disk3 (internal, physical): #TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB ...
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65 views

Re-install MacOS (High Sierra) with terminal

This may be a bit of an open-ended question: I am would like to do an OS reinstall of High Sierra, but block it from converting the disk to the APFS format. This would necessitate the use of terminal ...
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67 views

How to prevent auto mounting of encrypted APFS volumes by diskarbitrationd

running 10.14.5 on a 2019 iMac. diskarbitrationd is responsible for noticing the appearance of new block devices and mounting them. this kind of auto mounting can be prevented by configuring /etc/...
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259 views

TimeMachine Backup of APFS SSD in Mojave Never Completes

I am trying to setup up TimeMachine to a network attached storage (NAS) drive. My setup is successful, but like many others with an APFS partition (instead of HFS+), TimeMachine never completes the ...
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16 views

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 ...
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3k views

Unable to format internal drive as APFS on 2018 MacBook Pro

I’ve recently ran a semi-routine clean install on my 2018 MacBook Pro. This involves the following steps (in the given order): Creating a USB installer with the latest macOS Mojave 10.14.2. Booting ...
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594 views

How can I convert a case-sensitive APFS partition into a case-insensitive one?

I want to convert my case-sensitive partition to case-insensitive on MacOS Mojave The only solutions I've found is iPartition (which is discontinued) and ideas on how to do this for HFS. Does ...
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1k views

How to rebuild a GUID partition table in a APFS file system SSD?

I looked at other answers for similar questions but not one works for me (maybe because the APFS). I have an external 1 TB SSD with two APFS volumes. Somebody plug my hard drive into a Windows 10 PC ...
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108 views

Recovering SSD after Ubuntu live USB corrupted partition table?

I'm running a mid-2012 MBP with a WD green SSD inside. I needed to install Ubuntu for university so I tried to do so via a live USB. While doing the installation I accidentally clicked on the option ...
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240 views

Move Volumes between Containers?

So I installed the Mojave beta on a separate container from my High Sierra install, but I really meant to install it in a separate volume. So now I have two containers and my Mojave install has run ...
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856 views

APFS - Other volumes in container problem

I ran into issues with my Macbook Pro running High Sierra 10.13.4. The problem is that Other volumes in container metric are showing over 176 GB of space taken and I am not able to reclaim it back. I ...
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330 views

How to install and migrate to High Sierra on an encrypted FS?

[ I am in the process of migrating an old MacBook Pro to a new one. ] I made a complete 8 GB USB "Install macOS High Sierra". I checked it (Disk Utility) from my running old MacBook Pro. I booted ...
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638 views

SSD + apfs Install option greyed out

I'm sure I've seen this before, but I upgraded an older MBP (2011) to an SSD. I boot to a High Sierra installer that i created and format it to Apfs, but then the drive is greyed out - it states it ...
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179 views

Apple MacBook Pro with Touch Bar gets error mesage when reinstalling macOS High Sierra: Could not establish pre start volume for APFS installation

I get the following error message when reinstalling macOS High Sierra: Could not establish pre-start volume for APFS installation. How do I resolve this?
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3k views

APFS on RAID: recommended course of action?

I recently upgraded my Mac Mini Server's dual SSDs and found myself needing to re-create the RAID-0 array from scratch. (I am running the mainline High Sierra 10.13.1 on a 6,2 MacMiniServer from 2012.)...
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533 views

Lost partition after trying to run BootCamp on 10.13 on APFS. How to recover?

After trying to install Windows via Bootcamp on (yes I understand what "beta" means) beta High Sierra 10.13 I was left with unbootable partition: I cannot mount this disk. It's shown as "Mac OS ...
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27 views

Bootable SSD and converting to APFS

I boot my iMac from an external SSD, which is a clone of my main HDD, running Mojave. I had no issues before, recently with the Catalina being released I downloaded the update and when I choose my SSD ...
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Why does conversion of non-bootable hfs+ external drive to apfs fail (on macOS Mojave)? com.apple.DiskManagement error -69888

The attempted conversion is failing. Does anyone know why? Disk Utility.app error: Converting “mySSD” to APFS Converting HFS Volume to an APFS Container which will export one APFS Volume The target ...
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How to Mount extended case-sensitive journaled volume on APFS directory, permanently if possible

Source: /dev/disk0s3 UUID=894D79A6-40BD-306A9784-BEBAB444B1A hfs, local, journaled case-sensitive Destination: /dev/disk1s1 UUID=F692F645-EE36-3CD6-AC09-BCD8FFCC6F3C apfs, local, journaled ...
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50 views

Why is my iMac able to write to an NTFS external drive but not my MacBook Pro

My iMac (standalone desktop running Mojave) which is formatted as APFS is able to read and write to my Seagate external drive (which is formatted as NTFS). Yet my MacBook Pro (which was formatted as ...
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20 views

Unable to view Trash on APFS-formatted external drive

I am on macOS Mojave running iTunes with its library stored on an external drive. Both my main machine and external drive are formatted in APFS. When I delete a song on iTunes, the file never gets ...
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42 views

Question about custom partitions, VeraCrypt and APFS

After a couple of years of delay, I've upgraded to High Sierra. Now, I have an external disk used for backup, with the following layout: /dev/disk6 (external, physical): #: ...
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379 views

Interpreting various First Aid error messages

Can someone provide documentation or their own knowledge to interpret the below messages? I've researched this diligently but no post has the same combination of messages that I have. There are 5 ...
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57 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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92 views

Unable to mount AFPS disk cloned with dd (no mountable file systems)?

We have a laptop that won't boot up correctly, however, we're able to get it into target disk mode. I did a diskutil list and I saw there was an [external] disk (which listed a single AFPS partition ,...
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194 views

APFS encryption passphrase questions

Out of curiosity, I have a couple of questions regarding APFS passphrases. Using diskutil I found out that each APFS encrypted volume includes several cryptographic users, which at least in my system ...
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971 views

Resizing APFS partition stuck on “Checking the object map”

I attempted to add a partition to my boot drive in macOS High Sierra. In the process, Disk Utility was going to resize my Container disk1. The boot partition is APFS and is in that container. On the ...
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730 views

How do I fix hard disk “Error: -69845: File system verify or repair failed”

How can I resolve the Error: -69845: File system verify or repair failed error I'm getting when trying to verify my hard drive? So far these are the steps I've taken: In Terminal I ran: diskutil ...
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235 views

APFS Container corrupt after resizing Boot Camp partition from Windows

I have a bad problem. I shrunk my APFS volume from 850 GB to 750 GB so that I can expand my NTFS Boot Camp Volume from 150 GB to 250 GB. After shrinking everything worked fine. Then I started Boot ...
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35 views

Mac startup drive vanished after hard reset

The machine in question is a 2015 model 5K iMac running Mojave. It has a fusion drive that had a partition for OS X and a partition for Bootcamp running Windows 7. I went to restart and it seemed to ...
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100 views

Recovering GPT from a failed Mojave upgrade

Background: My partner decided to upgrade her work iMac to Mojave. Apparently, towards the end of the process, it hung on a black screen, said an error had occurred and would try to recover. It cycled ...
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146 views

Cannot boot APFS Volume after time machine restore

First time i've seen this, but had a kernel panic from an installation, so booted into recovery, did a time machine restore. The log says it completed successfully, but upon boot I get the message: "...
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121 views

Mounting volume while in Recovery Mode keeps rebooting

My computer crashed while editing a video with Final Cut. I have been unable to boot up since then - the OS crashes immediately after typing my password at the login screen and reboots. I’ve been ...
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63 views

Accidentally erased APFS partition while resizing Windows Bootcamp disk

This is my first post here. I recently wanted to add some more space to my windows' partition so I shrunk Mac HD by 60GB and rebooted. I then used windows to join the unallocated space with its ...
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176 views

Recover overwritten Encrypted OS X volume (APFS)

Is there a possibility to recover a 2TB APFS partition that has been altered by a fomatting command to a new 2TB APFS partion (i.e. the real data has not been deleted, encryption password is knonw, ...
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2k views

Repair APFS Container - Physical store disk listed under wrong APFS container reference

High level - have an APFS container that won't mount or repair. In Disk Utility I have the external drive (disk3) with the "APFS Physical Store" unmounted below. (disk3s2). I then have a mystery ...
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12k views

How to disable discrete GPU on MacBook Pro High Sierra permanently?

yesterday I tried the solution for my MacBook Pro under Sierra from the forum under this link: MacBook Pro: How to disable discrete GPU permanently from EFI? I tried the following steps under Sierra ...
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323 views

Cannot create large sparse files

I'm using APFS to create mostly empty files. They get filled progressively later, but first I want to create them with a logical maximum size (and a null physical size). My problem is that there's a ...
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623 views

How can I remove straying Preboot folders in /Volumes?

When trying to eject a drive with Alfred, Preboot 93 showed up. I know they are APFS container volumes but when checking the /Volumes directory it shows that there are a lot of Preboot drives straying....
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493 views

What is the “rm” process in Activity Monitor

The rm terminal command is being invoked (by an app, not through terminal), and the process has been running for a while at 100%. Here it is in Activity Monitor: Why is it seemingly stuck working so ...
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8 views

Is there a way to create APFS snapshots on external drives?

There are many guides explaining how to create and manage snapshots on APFS via tmutil, but all of these seem to only work within the framework of Time Machine local snapshots. Is there any way to ...
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6 views

Diskutil won't resize APFS container Error: -69521

200GB unused, but can't change APFS container size due to minimum requirement I've got this exact same problem here, same error, same message, I tried everything in there already but nothing ...
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25 views

mac merge 2 apfs containers, free container is not first on disk

I got a used macbook pro off of ebay. The previous owner had a recovery image taking up 420G on a separate containers. I am trying to merge the containers, but the system does not like it because ...
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59 views

Unlocking APFS volume window doesn't accept input

After upgrading macOS to from 10.11 El Capitan to 10.14 Mojave and with that got the main disk converted to APFS (and also encrypted), the computer cannot be booted. Boot screen shows a white ...