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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votes
1answer
5k views

OS volume shows as type 'FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF' [duplicate]

Yesterday, I have tried to delete an Ubuntu partition. Since, my Mac (13", MBPro mid-2014) doesn't boot. Now, I boot on Mac OS copy with an USB. i follow different subject of this forum (like this : ...
4
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2answers
7k views

macOS partition disappered after installing windows 10 using bootcamp

I use a macbook pro 2015 with macOS High Sierra. I installed windows 10 using bootcamp, which resized the macOS partition and created a 80GB windows partition. The machine boots into windows just fine....
19
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4answers
24k views

How can I merge primary APFS partition with other empty APFS partition?

Using the latest Macbook Pro with currently High Sierra 10.13.1, I was using bootcamp for a year, and I decided to get rid of the Bootcamp partition this morning. The Bootcamp utility would not let me ...
7
votes
2answers
7k views

Can't resize APFS Container: Not enough free space in Container due to APFS limits or tidemarks

When I try to resize my APFS container, I get the following error: Error: -69531: There is not enough free space in the APFS Container for this operation due to APFS limits or APFS tidemarks (perhaps ...
4
votes
1answer
2k views

Remove macOS from a APFS container?

I'm interested in taking a look as macOS Mojave but am not willing to install it on my main production machine. However, I do not have another Mac to hand so have found myself upon this guide from ...
13
votes
5answers
25k views

Can you update to macOS 10.14 (Mojave) without converting to APFS?

At WWDC 2018 macOS 10.14 or macOS Mojave was disclosed. I am currently on macOS Sierra (10.12) and am looking forward to upgrading to macOS Mojave once its released. I was wondering if it will be ...
11
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3answers
8k views

How to prevent conversion to APFS on High Sierra install

The current understanding seems to indicate that "all SSD" machines will have at least their main/root file system converted to APFS on the install of High Sierra. That means HFS+ is still a viable ...
8
votes
2answers
4k views

3rd party SSD with High Sierra

If I install High Sierra on a 3rd party SSD, will the main volume's file system be converted to APFS? The hardware is a Early 2011 13" Macbook Pro with a Crucial M4 SSD.
6
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2answers
7k views

APFS/High Sierra - `tmutil deletelocalsnapshots` not deleting snapshots

Listing local snapshots yields this > tmutil listlocalsnapshots / com.apple.TimeMachine.2018-01-30-194719 com.apple.TimeMachine.2018-01-30-211627 com.apple.TimeMachine.2018-01-30-224917 com.apple....
6
votes
1answer
848 views

APFS - Is it possible to install 2 macOS versions inside one APFS container?

As you might already now, a single APFS container can have multiple APFS partitions inside. Their advantage is the free space is shared between partitions. Today I decided to try out macOS Mojave ...
5
votes
1answer
2k views

200GB unused, but can't change APFS container size due to minimum requirement

I want to create a partition with a different filesystem but in order to do that I need to resize my APFS container. This container has 292,4 GB used space. Its minimum size is 500,07 GB. This ...
2
votes
2answers
11k views

Why was my drive not converted to APFS while installing macOS High Sierra public beta

I was wondering why my drive wasn’t converted to APFS after installing macOS High Sierra public beta. I tried to convert it to APFS after the fact, by booting into Recovery Mode and opening Disk ...
2
votes
1answer
789 views

APFS/High Sierra - tmutil deletelocalsnapshots will not delete snapshots - Error parsing argument

This is kind of an addendum to APFS/High Sierra - `tmutil deletelocalsnapshots` not deleting snapshots as I've discovered a new quirk in tmutil My snapshots all have am or pm appended. I have no idea ...
1
vote
1answer
845 views

How to remove a container disk and reclaim space with main partition?

I used to have a bootcamp partition but somehow while attempting to remove it its changed into a container disk. (don't know how this happened, I didn't explicitly create a container). diskutil list: ...
0
votes
1answer
1k views

Yet another corrupted partition table on macOS Mojave

I've seen a couple of posts on here addressing similar issues. Since I don't have in-depth understanding of what went wrong I have to describe what happened in my case and hope you'll help me. Thanks. ...
12
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4answers
13k views

What filesystems does iOS use?

I can't find this information documented anywhere. What filesystems do iOS devices use? Did Apple stick with HFS+? Is it different between devices and iOS versions?
6
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1answer
9k views

APFS: fsroot tree is invalid after Time Machine backup - how to recover and avoid in the future?

System MacBook Pro, late 2013, 1 TB SSD (brand new, recently replaced by Apple), APFS (no journaling, case insensitive), High Sierra 10.13.2, Time Machine to network HDD. What Happened Mac stopped ...
5
votes
3answers
661 views

How do I know if a time machine backup is running?

Due to APFS having a mind of its own and filling the hard disk with unwanted snapshots, I made a cron to run tmutil deletelocalsnapshots xxx. Later I found out that running this command while a backup ...
5
votes
2answers
42k views

Partition problem with APFS containers in macOS High Sierra

As always I'm so impatient and migrating with my main devices to the first developer previews the day they are available. Which as always bring me only problems but I just cannot help myself. So ...
4
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0answers
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 ...
2
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0answers
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.)...
10
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3answers
10k views

Migrate from HFS+ to APFS in-place

Using macOS Sierra, how do I migrate/switch/transition/upgrade the boot volume/partition from HFS+ to APFS in-place? Is this advisable, or perhaps already done by the Sierra installer?
8
votes
1answer
7k views

How to tell if I'm using HFS+ or APFS?

Using diskutil, or other command line tools, how can I determine which filesystem I'm using? # sw_vers ProductName: Mac OS X ProductVersion: 10.8.5 BuildVersion: 12F45
6
votes
1answer
6k views

How to prevent auto mounting of a volume in macOS High Sierra?

I am trying to prevent 2 volumes from mounting at startup. I created a new fstab using vifs and added the UUIDs of the volumes I don't want to mount at system startup, but for some reason this does ...
4
votes
2answers
22k views

Is it safe to remove APFS containers?

I have upgraded my Mac to High Sierra. So I was just looking at the features when I saw APFS container in Disk Utility. I googled it and found out that it is used for multiple logical drives but I ...
4
votes
1answer
3k views

How does APFS encryption work?

I recently upgraded my 2013 MBP to High Sierra. This changed my unencrypted file system to encrypted APFS. Does Apple provide any information about how APFS encryption works? Does the account ...
2
votes
0answers
588 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 ...
2
votes
1answer
417 views

How many APPLE_APFS partitions is a disk allowed to have?

I am using macOS High Sierra Version 10.13.2. The following two examples indicate that a disk is only allowed one APPLE_APFS partition. The output below from a Terminal application window shows that ...
1
vote
1answer
370 views

How does iOS change file system format during upgrade to iOS 10.3?

During upgrade to iOS 10.3, the file system format will change from HFS+ to Apple File System (APFS). How can the process retain the user data when changing file system format (how reliable it is? ...
0
votes
1answer
610 views

How to mount an APFS volume as a user's home directory?

TLDR; I can mount an APFS volume on /Users/foobar, where foobar is not an actual user, but mounting fails when trying to mount to /Users/newuser, when newuser is an actual user. BACKGROUND: I'm ...
6
votes
1answer
2k views

APFS Encrypted vs APFS + FileVault?

I upgraded the SSD in a Mac Mini and I'm reinstalling Mojave via internet recovery. The disk is completely erased right now, and when creating a new partition it asks me if I want to choose APFS or ...
5
votes
1answer
140 views

Expected incremental backup performance on Mid-2015 MacBook Pro

I use Acronis True Image backup software on a new mid-2015 MacBook Pro Retina with a 2.8GHz processor and a 1TB SSD running High Sierra and APFS. Incremental backups, even when there's almost no ...
3
votes
1answer
1k views

How to convert internal boot SSD from HFS+ to APFS?

Many web pages claim that when you install 10.13 on an SSD, you have an option to convert to APFS. Many others claim that when you install 10.13 on an SSD, you will be converted to APFS whether you ...
3
votes
2answers
1k views

Lost APFS partition after resizing partition in windows

I was trying to resize windows partition using EASEUS partition manager in windows to free up unallocated space so that I can extend APFS partition in macOS but I failed to boot into macOS after ...
3
votes
1answer
436 views

Creating mountable snapshot view in macOS

I'm used to backup my user's home using rsync. However, I now have data (eg, running database) that shouldn't be backed up while being changed, and I'd like to keep the applications changing them ...
3
votes
2answers
426 views

Can an APFS volume be moved?

I have two APFS volumes on one disk. I wanted to shrink them to make a new volume for Bootcamp, but shrinking each one has left the free space separated. Is there a way to move the second volume ...
3
votes
1answer
1k views

Disk Could Not Be Partitioned - First Aid not helping

I am trying to install Windows by Bootcamp on my MacBook Air (2017) 128 GB. I am using the newest macOS, so High Sierra. Unfortunately I am getting "Disk Could Not Be Partitioned" error. I tried to ...
2
votes
1answer
2k views

'Other Volumes' storage increases after deleting secondary volumes

Long story short: ive noticed each time i create a secondary volume and removed it after some testing, the storage labeled 'Other Volumes' in the Disk Utility app has increased each time by half a ...
2
votes
1answer
214 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 ...
1
vote
1answer
186 views

What is the correct way to eject a APFS dmg from the command line?

Create a APFS DMG using Apple's Disk Utility application and call it test_apfs.dmg. One can mount it with: hdiutil attach -plist ~/Desktop/test_apfs.dmg which provides the following output: <?...
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2answers
2k views

Cannot partition w/ Boot Camp Assistant on macOS Mojave

Late 2016 Macbook Pro running Mojave 10.14.3, APFS-formatted (ugh). I have run Disk Utility to verify my disk, and I've run fsck -fy from single-user mode several times. Both of these have reported ...
1
vote
0answers
150 views

Disk format for HDD with both APFS and HFS+ volumes

For a HDD which will have both HFS+ and APFS volumes, is it better to format the disk itself in Disk Utility (on High Sierra) as APFS or HFS+?
1
vote
1answer
568 views

Failed attempt to fix macOS partition startup volume set to FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I attempted to fix an issue I encountered yesterday my MacBook Pro (13-inch, Mid 2012) following instructions in the top answer of this thread. I'm afraid I may have inadvertently destroyed my data by ...
0
votes
1answer
28 views

How can I prevent files emptied out of the Trash from accumulating in “purgeable space”?

I'm having the same problem as the person who asked this question: I cleared a bunch of files out of my Trash and instead of getting free space on the volume, I got 30 gigs of "purgeable space". ...