Questions tagged [apfs]

Apple File System (APFS) is a proprietary file system for macOS, iOS, tvOS and watchOS, developed and deployed by Apple Inc. It aims to fix core problems of HFS+ (also called Mac OS Extended), APFS's predecessor on these operating systems. Apple File System is optimized for flash and solid-state drive storage, with a primary focus on encryption.

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How do I consolidate container disks to my main volume?

I am using MacOs Big Sur (11.3) and recently removed my dual-boot data, hoping to use the storage on my main volume instead. However, once I did this, it left behind APFS container disks. How do I ...
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Recover files after accidentally formatting APFS to NTFS [duplicate]

I think most of these stories begin somewhat the same: I was doing X and then nothing worked anymore. In short I accidentally formatted my whole disk from APFS to NTFS. And my question: any chance of ...
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How to convert HFS+ partition to APFS on Mac?

After struggling with deleting Ubuntu from my Mac alongside with macOS, after deleting EFI volume it became free and unused. How can I convert it to APFS again and include that in my HD storage? Disk ...
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Can synthetic.conf links be used to 'hardlink' directories in macOS?

Can synthetic.conf (see its man page for more info) links be used to 'hardlink' directories in macOS? I.e., does adding /Users/sth/project/src /Users/sth/foo' to synthetic.conf work?
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Is there a way to share an APFS partition on Linux?

I want to share over the network a partition formatted as APFS using my laptop with Ubuntu 20. I was wondering if there is a way to share the partition "raw" so I can connect to it from my ...
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apfs resize error 49187

I have macOS Big Sur installed, and I'm trying to shrink the MacOS partition so I can make the Windows Bootcamp partition bigger. While booted to the OS, I get this error: ➜ ~ diskutil apfs ...
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How to restore from a sealed APFS volume when restore fails “because it has a broken seal”

I have been researching this for many hours over the last week. A description of my research effort is at the end of this post. Disk Utility will not restore an APFS volume "because it has a ...
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Is it possible to grep for a deleted file on an APFS Filevault enabled SSD?

Due to a bug in github desktop I lost about a month worth of work on a personal project. If I could recover just one python script from it it would save me a ton of time re-doing it. I've been looking ...
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APFS partition corrupted after Paragon Disk Manager has failed

I am using a MacBook Pro 16" with Big Sur with FileVault enabled and used Paragon Disk Manager (latest version) to resize Bootcamp partition in the 1TB Internal SSD of my Mac. However, operation ...
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Why is rsync crashing when I specify -X?

Can anyone explain why rsync is crashing when I use rsync -X to try copying an XFS file with extended attributes from a CentOS 7 system to a macOS Catalina one, along with the following debugging ...
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Install macOS Big Sur to HFS+ partition on a clean new HDD/SSD

Is it possible? May be by editing some scripts on the installation media... Or just by selecting a setting I've missed during installation. And prevent further converting HFS+ to APFS in the future. I ...
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I see my SSD like 3 disks on macOS Catalina after SSD replace

I've upgraded my Macbook Air installing it brand new SSD. Everything worked fine but I had to reinstall the OS so I did it via bootable USB. When I had to choose a disk I decided to erase the old one ...
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Is there anyway to revert my mac to HFS from APFS?

Most of the time spent on my mac is spent on bootcamp or linux distros, but i have noticed that the main partition cannot be accessed by windows since it is APFS. Since the only way to access APFS is ...
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Maximum volume of APFS

I was researching about the maximum file size and maximum volume of APFS. The most reliable documentation is this Apple's archived link stating that the maximum file size in APFS is 2^63 bytes, but ...
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MacOS Catalina: Extend APFS Volume

Following is the result of diskutil list command: I want to extend disk0s2 to take up available space (29GB) since I have 128GB SSD and I have deleted container disk of size 29GB. I tried with disk ...
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741 views

How to load MacOS from an APFS partition using GRUB2?

This is a Apple machine, not a Hackintosh. Before Apple switched to APFS, you could put this inside a menu entry in GRUB: set root=(your OS X partition) chainloader /System/Library/CoreServices/boot....
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Is it possible to create a firmlink on the latest version of macOS Catalina?

synthetic.conf creates empty, mountable directories and symlinks, not firmlinks. While I do know you can create another volume inside the APFS container and use synthetic.conf to provide me with a ...
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Format an APFS hard disk on Windows

I have an internal SSD that was installed on a Mac laptop I owned. I bought a new Windows laptop and I want to install this SSD on it, but the drive is formatted in APFS. I installed Paragon APFS for ...
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Why does an APK file size of 7.6 MB allocate 1.36 GB on an exFAT formatted external hard drive when reverse-engineered?

I have an apk file size of 7.6 MB. When I reverse-engineer this apk file through apktool, which is a reverse engineering tool for apk files, it allocates 1.36 GB on an exFAT formatted external hard ...
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My Apple APFS partition is entirely full, and now I can't delete anything anymore. How do I fix this?

APFS is a copy-on-write filesystem, which means that any modification including deletions require writing new metadata, not just changing existing metadata. The new metadata requires free space. At ...
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Rsync from Mac OS to synology with btrfs having issues with file and directories that contain umlauts and similar characters

I want to copy a folder from my local Mac (Catalina with APFS) to my Synology (btrfs filesystem) on my local network. And all files that have an umlaut in it (ö,ä,ü,....) gets in trouble somehow. ...
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Fake a mount to local folder

Every so often I need to locally debug Groovy scripts that write files to a subfolder in /mnt on the server. Is there a way to fake this mount on my local machine to another folder (in /tmp) so that I ...
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How to mount System Volume using APFS snapshot

I am not able to mount System Volume (root) using APFS. I only see my Data Volume. $ mkdir /tmp/snapshotbackup_root $ mount_apfs -s com.apple.TimeMachine.2019-10-29-174444.local / /tmp/...
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Mac Pro 5,1 firmware update for booting APFS

When High Sierra came out, I opted to not update my filesystem version, out of caution. Now that it's been out for a while, and my MacBook Pro has had no issues, I'd like to upgrade my Mac Pro 5,1 to ...
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How to find firmlinks

macOS Catalina introduces "firmlinks" to the APFS filesystem. Is there a way via a CLI tool to determine whether /Users is a firmlink and where it is firmlinking to? I'm looking for something similar ...
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How to create a firm link in latest APFS

I'm running the macOS beta for Catalina (10.15) and I'm trying to find out how to create a firm link. (Not a hard link, soft link, alias or anything like that.) The WWDC keynote mentions a new feature ...
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Determining status of cloned file on APFS

Apple is now using APFS across several product lines, including macOS. This new filesystem has some nice features for minimizing how much actual disk space is consumed, such as sparse file support ...
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Can I expand an APFS volume across multiple drives

I have installed a 2nd SSD in a Mac running Mojave. Is it possible to expand the current active volume across the 2nd SSD? I would rather do this and have a single volume instead of moving home ...
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git-p4 and huge file sizes

I am trying to convert a Perforce(p4) repository to git (preferably to Helix4Git, a git server implementation by perforce). I reduce my problem to a simple use-case in order to find the solution for ...
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1answer
6k views

How to resolve APFS overallocation error from volume “VM” without reformatting disk

I ran Disk Utility's First Aid on my drive's APFS container. One of the volumes, called "VM", gives the following warning: warning: Overallocation Detected on Main device: (26707978+1) bitmap address ...
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Unlock FileVault encrypted drive knowing only user password

I have an external disk which is clone of a MacBook internal disk. I used it as an external boot disk from time to time. Today when I tried to boot from it on a new MacBook it stopped working and I ...
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Healthy APFS volume trapped by broken container

How do I mount a healthy APFS volume belonging to a broken APFS container? The volume has FileVault enabled. All data sits in a external disk. Update The external USB disk was prepared with ...
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141 views

APFS encrypted sparsebundle won't fully compact

I have an APFS encrypted sparsebundle saved on my HD. It is not a time machine backup, rather something I created and maintain manually. On occasion I perform an hdiutil compact to reclaim HD space. ...
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Creating a base image for macOS High Sierra with Apple File System (APFS)

I used to be able to create a single dmg file of a Mac disk drive (contains all partitions including recovery partition) and then deploy it to another Mac as per these instructions: https://support....
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best process after drive upgrade (High Sierra APFS with FileVault encryption)

I am running MacOS 10.13.5 with APFS format SSD and FileVault encryption. I need to upgrade the drive from 1/4 TB to 1/2 TB. I want to avoid having to reinstall all my applications and data after re-...
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rEFInd doesn't start Mac OSX

I had rEFInd running fine previously. Then I updated to Mac OSX Mojave beta. After the update, rEFInd was missing. So I just reinstalled it. However, it didn't work. Went back to 10.13.5 fresh ...
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How do I mount a raw APFS filesystem from the commandline on macOS?

Creating a raw image with an APFS filesystem in it is pretty straight-forward: $ hdiutil create -megabytes 1 -layout NONE -fs apfs -volname unicode unicode.dmg created: /Users/daniel/test/apfs/...
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Installer .pkg from terminal fails to APFS volume

Had a .pkg I've been installing from command line to various systems for ages with no problem, recently noticed it's been failing with the following error message: Cannot install on volume /Volumes/...
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How to mount APFS on Linux or Windows?

Is there any way to mount APFS partition read only or read/write on Linux or Windows?
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APFS broke find command

I just upgraded to APFS on an external drive. Now this is happening: find /Volumes/FDDISK | head /Volumes/FDDISK /Volumes/FDDISK/.HFS+ Private Directory Data /dir_2354142ISK/.HFS+ Private Directory ...