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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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How to convert multiple partitions to APFS?

I have an external SSD drive which has 4 bootable partitions holding monthly backups. It has a GUID partition map; each partition is MacOS Extended Journaled (HFS+); each is 250GB in size with about ...
aMike's user avatar
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1 vote
0 answers
209 views

Cannot Access my Files on External APFS SSD in "Other Volumes"

On my external SSD, which is formatted as APFS (Case-sensitive), there are a lot of important personal files (around 219 GB). When I plug the drive into my MacBook Pro (M1 Pro, 2021) and open it in ...
vaely's user avatar
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96 views

iMac Late 2012 Unable to boot. Fusion Drive APFS no HFS+

Reference old question: 2013 iMac with APFS Fusion Drive. Fails to boot. How to recover data? I have removed both the SSD drives from the iMac. Purchased a new Mac Mini M2 running macOS Ventura 13.3. ...
Arun's user avatar
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How to correct the GPT of this non-booting fusion drive iMac?

Question renamed from: « Diagnosing what's going wrong with the fusion drive of an iMac 27'' 2019 A2115 EMC 3194 » after the origin of the problem could be located. Having a non-booting iMac using ...
OuzoPower's user avatar
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1 vote
1 answer
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Is there any way to change location of APFS local snapshots?

I use APFS local snapshots to recover my Mac, but I wonder if there is a possibility to change snapshot location from Mac built-in SSD to USB flash drive or external SSD?
Alexander's user avatar
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0 answers
229 views

External APFS SSD partition stops mounting after a while mount even after erasing/reformatting

I have been trying to use an APFS partitioned Samsung T7 shield 2 TB for a couple of weeks now but keep running into the same issue. After a few days of use, one of my partitions will no longer mount. ...
Mushll's user avatar
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1 answer
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Used iMac just boots to Utilities, can't reinstall OS or sign in under my Apple ID

Trying to update an iMac (2015, I believe?) a friend gave me. They've fully signed out of it, and I have erased the hard drive in disk utilities, but I cannot get it to boot to anything. When I choose ...
Michael's user avatar
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2 answers
127 views

How do I keep a full Time Machine restoration from changing the filesystem type?

I'm stuck on upgrading from Mojave to Catalina. (Yes, I'm late to the party.) My most recent Time Machine backups continue to be from my Mojave system on an HFS+ Mac OS Extended (Journaled) filesystem....
August's user avatar
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0 answers
2k views

Disk Utility reports 'invalid internal_flags' on Mac APFS drive

Why doesn't Apple address the 'invalid internal_flags' warning that shows up after running Disk Utility? Disk Utility doesn't fix the issue, and when I called Apple, they pretty much brushed aside any ...
sum2jar's user avatar
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2 votes
2 answers
431 views

External APFS container with 3 volumes with different look

I have a 2TB external HDD which I have formatted as APFS. I have 3 volumes (MacbookAirOdd, MacbookAirEeven, MacbookAir_Linda) as such: I thought the 3 volumes were all created the same way. The ...
todivefor's user avatar
2 votes
1 answer
1k views

Time Machine backups of Multiple Macs to external drive with APFS: Should I use separate containers, or one container with different volumes?

On an external drive, I have 3 APFS containers each with 1 volume in them respectively. The 3 containers and their respective volumes are used for Time Machine backups from 3 different Macs. The APFS ...
P A N's user avatar
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4 votes
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90 views

Can APFS containers be resized while retaining their contents? (Case-sensitive, encrypted)

Can APFS (Case-sensitive, encrypted) containers be resized while retaining their contents (e.g. not having to reformat them) in MacOS? I have an external hard drive with 3 different Time Machine ...
P A N's user avatar
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1 vote
1 answer
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the unbootable (unbeatable) imac

have an imac that's been dead since an update tried to reformat the internal hybrid/fusion hdd to APFS. the mac can only boot into single user mode. recovery hangs, safe mode hangs, boot disks hang. ...
austin's user avatar
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134 views

Is there any way to decrypt a hardware-encrypted internal SSD?

My mid-2019 MacBook Pro has a fault on the mainboard that causes it to crash soon after (sometimes while) it boots. I’m trying to get the data off the internal SSD. When I boot it in target mode (by ...
joriki's user avatar
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70 views

Does the Apple File System Reference specify the wrong encryption algorithm?

I’m trying to understand encryption in APFS. The Apple File System Reference (p. 136) states several times (steps 2, 5 and 7) that unwrapping is performed “according to the algorithm described in RFC ...
joriki's user avatar
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Is an APFS formatted drive underpinned by HFS+?

When I formatted my drive with APFS this is the output that Disk Utility delivered. It says right at the beginning Formatting disk7s2 as Mac OS Extended (Journaled) with name External HD. So is an ...
Alex Ixeras's user avatar
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2 votes
1 answer
408 views

How can i give the "free space" on my internal ssd to the APFS container, where macos is installed? [duplicate]

I had Ubuntu installed in dual boot on my macbook pro 2018 with macOS Ventura 13.2.1 . Now I deleted the partition on which Linux was located and saw in Disk Utility that I don't have all of my SSD ...
Consti's user avatar
  • 23
1 vote
2 answers
471 views

Is there a way to convert OS X Mavericks from Journaling to APFS

I have a really old Mac that I just pulled out. It appears to be running OS X Mavericks and I would like to update it. I first need to convert it from Mac OS Extended (Journaled) to APFS. Does anyone ...
Pikachoo111's user avatar
1 vote
2 answers
2k views

How to enlarge a APFS container with free space before it? [duplicate]

/dev/disk2 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk2 1: ...
coolboy's user avatar
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Recovering time machine backup on failed external disk partition

I have an external disk with apfs filesystem that contains my encrypted time machine backups. The filesystem get corrupted and I'm not able to mount it any more. Disk Doctor is not able to fix the ...
Hubidubi's user avatar
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1 vote
1 answer
257 views

Shell script to reboot from different volume

I have two installations of OSX (both Ventura) on my machine on two separate APFS volumes. I need to often switch between the two machines. I am only aware of the option to press and hold the power ...
Rahul's user avatar
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10 votes
4 answers
2k views

/dev/disk/by-id on macOS?

Suppose that we are doing some operations on drives using for example diskutil. Usually we use /dev/diskX to indicate which drive we are working on, but the number X could change next time we connect ...
Ma Joad's user avatar
  • 411
3 votes
1 answer
284 views

Is APFS more reliable than HFS+ for a network (sparse bundle) drive?

I do Time Machine backups from my laptop to an SMB network drive. No doubt this is inherently unreliable because mounting a disk image over a network connection can result in the disk needing repair ...
Chris F Carroll's user avatar
1 vote
1 answer
470 views

Can I use an APFS snapshot to generate a list of all files changed since an earlier point?

I just clean installed macOS on a new VM and now need to set it up with various preferences and stuff to customize it. What I am curious about is where all those customizations actually get stored. I ...
natevw's user avatar
  • 283
0 votes
1 answer
51 views

Encrpyted APFS + replace motherboard means data lost?

I had to replace the motherboard on a MacBook Pro 2015 A1502. It was running on encrypted APFS. When I try to mount the partition in Recovery Mode, it doesn't accept the password. I'm thinking it ...
barrymac's user avatar
  • 111
0 votes
1 answer
412 views

Is it at all possible for Big Sur to be booted from an HFS+ formatted volume?

For various reasons, I wanted to install Big Sur 11.7.3 on HFS+, but I could not do it. The install would always try to force-reformat my drive, so I eventually gave up and went with the APFS. Now I ...
user375909's user avatar
3 votes
1 answer
2k views

Encrypted and access-restricted iCloud Drive folders on iOS and iPadOS

I use my iPad frequently in a teaching environment where it is unlocked and used by other people when presenting. Also, when I work with iPad in a shared office (I use iPad with Magic Keyboard as a ...
John's user avatar
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1 vote
0 answers
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How to identify macOS system version installed (if any) on non-startup disk(s) when running High Sierra (or older)?

When running macOS High Sierra (10.13), non-startup disks formatted with newer macOS versions (10.15 or above- Catalina, Monterey, Ventura) installed on them mount as a separate "Data" ...
maczq's user avatar
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1 vote
1 answer
143 views

How to boot back into APFS container

I have a early 2015 Retina MacBook Pro that was dual-booting Big Sur on its first 50GB partition and Monterey on its 2nd 200GB partition A concern started when Disk Utility wouldn’t let me delete my ...
udance4ever's user avatar
5 votes
2 answers
1k views

Why doesn't APFS come with the Journaled option?

A quick look in Disk Utility shows that Journaled is not an option with APFS like macOS Extended. Would anyone know why?
user3289240's user avatar
2 votes
1 answer
1k views

Converting an existing 'Data' volume to APFS encrypted

Laptop: Macbook Pro M1 OS: macOS Ventura 13.1 I regularly work on sensitive data on my laptop and I want everything to be encrypted by default. The best way to do that I imagine is to encrypt my ...
lolski's user avatar
  • 505
0 votes
2 answers
287 views

Can Time Machine be used to restore an encrypted APFS volume?

I created an encrypted APFS volume on my internal SSD on my MacBook. I also use Time Machine. How can I use Time Machine to: a) Restore a previous version of the whole encrypted APFS volume? b) ...
John's user avatar
  • 565
1 vote
1 answer
3k views

What does System Snapshot Mounted mean?

Installed macOS Ventura on external USB-C SSD. Install went as expected but, when I look at “macOS” disk in “Disk Utility” app, I notice “macOS” disk is mounted as a snapshot. Is that normal? If not, ...
sunknudsen's user avatar
6 votes
2 answers
1k views

Time machine restore to new external drive

As you read through this post, for reference, the machine on which I'm trying all of this is running Big Sur. I was using Time Machine to back up an external drive that failed. Having purchased a new ...
Christoph's user avatar
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2 votes
2 answers
1k views

Inaccessible APFS Partition - no gpt scheme

In an attempt to recover a different external drive altogether, my drive "Libraries" was compromised. Just for it being connected at the same time. I'll be sure to disconnect drives I'm not ...
CyX SenZe's user avatar
1 vote
1 answer
108 views

Which files are required on the root of an APFS partition?

I have an external drive formatted as APFS. It contains folders such as .PKInstallSandboxManager, .Spotlight-V100, .TemporaryItems, .Trashes, and .fseventsd. Which of these files are safe to delete if ...
Aaron Franke's user avatar
3 votes
2 answers
1k views

Why does APFS claim my filesystem is full when I'm only using 100/250GB?

I've been tearing my hair out trying to figure out why my new machine (Mac mini M1 2020, Monterey 12.6) is supposedly running out of space. Running du/ncdu is showing only a total of 100 GB disk space ...
coreukills's user avatar
4 votes
1 answer
648 views

How can I encrypt a Disk Utility RAID volume?

I have two SSDs in an external enclosure, exposed to the OS as independent drives. I want them to appear as a single encrypted APFS volume, with RAID 1 mirroring. I'd like to set up RAID via the ...
DNS's user avatar
  • 153
0 votes
1 answer
197 views

Adding an ISO image to an APFS volume and booting it

I know there is tons of information on this and similar questions on this site, but I have been at this for a couple hours and could use some confirmation of a few specific details. I just want to ...
Julius Hamilton's user avatar
1 vote
0 answers
81 views

Conversion to APFS vs. reformatting

Wanting to convert an external HFS+ drive to APFS. This is said to be doable without losing the current content. I have no reason to doubt that. But I'm curious: Is there any reason (any ...
WGroleau's user avatar
  • 5,065
6 votes
0 answers
743 views

Creating a non-TM snapshot of an external APFS volume

I have an external HDD with several APFS volumes containing all my files. I want to preserve a copy of the files at a given time, in case they get accidentally modified or deleted. Creating manual ...
Rafal's user avatar
  • 225
2 votes
1 answer
292 views

Linux messed up GUID Partition Table for APFS container on external drive

I partitioned my 1TB external drive as follows for use with both macOS & Windows: 949GB APFS 51GB Windows NTFS As I no longer needed the Windows partition I tried to delete it through Disk ...
A.maths's user avatar
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3 votes
1 answer
1k views

Not able to delete a specific file in an APFS Time Machine backup

I am using a Mac Book Pro with Ventura 13.0.1. I've followed the answer to How can I manually delete files and folders from a Time Machine backup volume? to delete files from a Time Machine backup, ...
Bruce Greenfield's user avatar
0 votes
1 answer
533 views

Fusion drive on iMac model 17,1, Mojave 10.14 - APFS or HFS+ format for HDD?

I have read that APFS was optimized for SSDs, but that it's not an optimal choice[ for HDDs. However, I just got my iMac (Model 17,1; OS X Mojave, 10.14) back from repair, and both drives are ...
Seamus's user avatar
  • 4,742
3 votes
1 answer
405 views

MacOS 12.16: dd with devices is all but useless? reading/writing to raw disk (APFS) fails with "permission denied" or "Invalid argument"

Help! When I run dd inputting from either buffered or raw device of an unmounted volume, which does show up in diskutil list, I get either "Permission denied" or "Invalid argument"....
Otheus's user avatar
  • 129
1 vote
0 answers
32 views

Remove free disk space

After reinstalling the system, a strange free space appeared on the system disk and because of this, the disk size decreased by 40GB. Apparently, we need to increase the size of the apfc container, ...
mi6e4ka's user avatar
  • 11
1 vote
2 answers
628 views

Accidentally deleted Fusion Drive SSD partition - need help recovering data

I accidentally formatted the SSD part of an APFS-formatted Fusion Drive during an SSD upgrade. Well, not accidentally, I did it on purpose wrongfully thinking that the Apple SSD wouldn't be needed ...
PCBOX Girona's user avatar
0 votes
1 answer
331 views

Can Time Machine continue backups from an external HFS+ drive to an APFS drive?

I've got an external hard drive ("HDD A") formatted HFS+, which is backed up to a Time Machine drive also formatted HFS+. I'm going to replace HDD A with another external hard drive, ...
Cloud122's user avatar
0 votes
1 answer
311 views

Extract an APFS disk image without mounting it

I have disk image that is reported to have an APFS file system. $ file disk.img disk.img: Apple File System (APFS), blocksize 4096 How can I extract the disk image without mounting it?
Stefan Schmidt's user avatar
5 votes
1 answer
943 views

Is there a commandline switch for "ls" that reveals "firmlinks"

With macOS Sierra APFS came with a new concept of "firmlinks", often described as being "between hardlinks and symlinks". Several folders are now at System/Volumes/Data but are ...
hippietrail's user avatar
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