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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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Sparse disk image error 'No space left on device' while limit not reached

I created a sparse disk image of 400 GB with hdiutil command on an empty 500 GB external drive. After I have attached the disk image, I copy data to it. After about 17 GB of data I get an error ...
Robertico's user avatar
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2 votes
1 answer
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APFS vs HFS+ which is better for storage and music/videos creating/editing? [closed]

MBP M1 Ventura. I use multiple external HDDs for storage /editing videos, photos, original music. Should I convert them APFS or stick with HFS+?
Hoon's user avatar
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1 vote
2 answers
225 views

Fresh OS install + Data restore

I need to upgrade my OS, as well as fix the formatting of my main HDD (APFS is not ideal for HDDs). Is it advisable for me to completely start over with a fresh OS install (Sonoma), and then restore ...
user4815162342's user avatar
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33 views

Snapshots are too big and constantly fills my SSD!

I keep getting out of space warnings, and the only way to reclaim that is using Daisy Disk. Disk Utility always shows "resource busy". Some thoughts: perhaps it's possible to decrease the &...
Henry Mazza's user avatar
2 votes
2 answers
98 views

Leveraging APFS snapshots for custom backup tool

I manage a few Linux servers, and in a few of them, if I want to perform backups, I can leverage filesystem snapshots. I.e. I can create a snapshot and then clone it to a second machine, thus ensuring ...
Alex's user avatar
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3 votes
1 answer
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How to modify the macOS 14 volume UUID?

The image below is from version 10.12 of macOS, where the volume is in JHFS+ format. This same UUID can be obtained by entering commands in a Terminal application window, as shown below. $ diskutil ...
special_mkbk's user avatar
1 vote
0 answers
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Mistakenly launched, but did't carry out an OS upgrade (Monterey>Sonoma). How do I get rid of the macOS installer boot menu item?

I'm running Monterey (with OCLP) on a Late 2012 Mac mini "Core i7" (Intel Ivy Bridge). The model identifier is Macmini6,2. The macOS upgrade got mistakenly launched from macOS System ...
myxal's user avatar
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Receiving error when copying files to external APFS drive

I'm trying to copy a film project from external drive A (formatted with ExFAT) to external drive B (formatted with APFS). This always results in an error message saying: "the item "name"...
mosquito87's user avatar
1 vote
1 answer
30 views

Create a local snapshot of an external drive in macOS

I'd like to backup my external drives to my NAS using rsync and not Time Machine, because I occasionally want to actually use these files on the remote server. I'd like to create an APFS snapshot ...
odedia's user avatar
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2 votes
1 answer
129 views

How can I mount a TimeMachine Backup snapshot in the Terminal via mount_apfs?

I backup my Apple Silicon Mac (running macOS Sonoma) to an external, directly attached drive via Time Machine. All backup snapshots on that external drive I can list via $ ls -1 /Volumes/.timemachine/...
halloleo's user avatar
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1 vote
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Remount encrypted APFS volume without explicitly providing password

It is possible to remount an HFS+/CoreStorage Logical Volume using diskutil mount diskXsY if keychain stores the password for that volume, but trying to remount an APFS Volume even though the password ...
tig's user avatar
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1 vote
1 answer
150 views

Where are the TimeMachine Backup snapshots in Terminal on macOS Ventura?

I have set up a new Apple Silicon Mac and attached an external drive as Time Machine. The Time Machine drive I can see in Terminal as $ ls -1 /Volumes ... Persistently ... And in Finder I can in the ...
halloleo's user avatar
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3 votes
1 answer
162 views

Undeleteable (dataless?) folder in MacOS: Permission denied, compressed chflag

I'm having a problem deleting a folder that was previously managed by Microsoft OneDrive. The folder is called "WP". I already tried: sudo, disabling SIP, removing chflags. ❯ csrutil status ...
tholu's user avatar
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Overallocation warning in First Aid in Recovery Mode for mid 2015 Macbook Pro on High Sierra

I have a 15” Intel Macbook Pro(mid 2015) on High Sierra. No operation issues with laptop, but one day I ran First Aid and got the error that a volume in Macintosh HD could not be unmounted so the ...
Kansuke's user avatar
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1 answer
55 views

What's wrong with my disk and apfs volumes?

I'm learning/trying diskutil, newfs_apfs and other disk command on macOS. My idea is actually this: a) Create a 1 GiB container b) Add 5 volumes of 200 MiB size in the 1 GiB container I run these ...
elbarna's user avatar
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0 votes
2 answers
43 views

How to create two APFS containers with same size?

I have a virtual disk of 1 GB, on which I want to create two volumes of 400 MB. With diskutil partitionDisk /dev/disk0 2 GPT APFS VOLUME1 400M APFS VOLUME2 400M it created one APFS container of 400 ...
elbarna's user avatar
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0 answers
27 views

APFS snapshot specific volume

Does anyone know how to make an APFS snapshot of a specific APFS volume? tmutil doesn't seem to have that option and tmutil snapshot make snapshots for all APFS volumes. diskutil neither But for sure ...
user133390's user avatar
0 votes
1 answer
52 views

How to increase APFS volume size [duplicate]

I used to have 160 GB macOS APFS container and I upgraded my laptop's SSD with a bigger one and I wanted to increase the size of APFS container to 260 GB. I created an APFS partition and copied old ...
coolman's user avatar
  • 21
2 votes
1 answer
88 views

Troubleshooting GUID partition "FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFF" [duplicate]

Running a Mac Pro 2013 with macOS Catalina. Looking to change the GUID type from FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF to 7C3457EF-0000-11AA-AA11-00306543ECAC. I've been browsing through various ...
cheoso's user avatar
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Problem rebooting macbook pro

Need some help. I made a partition of my hd (with high sierra), this new partition is an apfs where I installed another OS (Mojave). I had some problems with restarting, so I could have accessed to ...
Luca deluchis's user avatar
1 vote
1 answer
80 views

"reflink" filesystem API for macOS?

On linux, we have the call int ioctl(int, FICLONERANGE, struct file_clone_range *); to "reflink" files. APFS also supports COW and thus a similar system call should exist. However, the ...
Ma Joad's user avatar
  • 411
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0 answers
659 views

How to mount and get full access to an apfs partition from linux

I broke my laptop some how (I think from overheating). I dual-boot linux on a Macbook that has got a T2 chip. I can't boot up MacOS, but for some reason linux does. I've got a couple of files in my ...
sherbit fish's user avatar
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0 answers
37 views

APFS volume not utilizing full container space

So a bit of background: I originally had a couple partitions on my macOS hard drive that I recently removed. I've done this before so pretty simple. I then try to run diskutil apfs resizeContainer ...
Harrison G's user avatar
0 votes
1 answer
88 views

Restoring an APFS disk image cloned with (G)DD [duplicate]

Back in August I cloned a 500GB APFS container off a 2TB external HDD consisting of a Time Machine backup of my old macOS install and some APFS scratch space, and formatted that partition on the ...
ShouldBeAtTheBeach's user avatar
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0 answers
27 views

Reinstalling macOS from recovery uses extra space?

When you use the option to reinstall macOS from recovery, it uses an extra 10GB of space. I restored the same data using Migration assistant, but after it shows about 10 GB less space available. ...
stands2reason's user avatar
1 vote
1 answer
58 views

How to move free space in front of APFS container?

How does one go about changing the starting position of an APFS partition on a drive? In this situation, I would like the 209.4 GB of free space to end up behind the APFS partition so that I can ...
Windooows's user avatar
3 votes
1 answer
590 views

Missing free space after Sonoma, and it's not Snapshots!

After upgrading to Sonoma I've been running out of disk space (and application memory) even tho Finder shows 300+GB free. I read about it being a common problem with too much Time Machine snapshots in ...
Henry Mazza's user avatar
0 votes
0 answers
217 views

How to mount a bootable APFS snapshot from command line?

First, I have Time Machine enabled and my aim is to make rclone cloud backups of a snapshot of all locally backed up files, excluding system files. It is mainly non-system volumes and $HOME. I am ...
e40's user avatar
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0 answers
35 views

Restoring from APFS Time Machine backup that includes always-connected external drive: Do I need to format the external drive?

I have an APFS (case-sensitive, encrypted) Time Machine backup that includes both my internal SSD (APFS) and a much larger APFS volume on an external SSD. The backup containing both is on a slow but ...
Attila the Fun's user avatar
1 vote
0 answers
114 views

How do I install High Sierra on APFS external hard drives?

How do I install High Sierra on APFS external hard drives? I only want to boot High Sierra off the drive on RARE occasions, for testing purposes. I don't care how slow it is, bad performance, etc.. ...
sbimos's user avatar
  • 41
2 votes
1 answer
295 views

APFS how to remove unexpected "volume group" and keep data

I unintentionally created a "Volume Group" when restoring to my boot SSD (did something the wrong way I guess - highly confusing for me) I intended for the structure to be the same as the (...
John's user avatar
  • 1,071
0 votes
0 answers
43 views

How to access Finder's "Date Added" field from Terminal without MDLS

[MacOS Ventura] I need to move some files off a drive that is nearing its capacity to another drive while preserving the original Date Added in its new location. Since I've noticed that MacOS ...
gone's user avatar
  • 753
1 vote
0 answers
73 views

Recover files from mac in recovery mode - apfs missing

I'm trying to recover files from my mom's mac that is not working. It's a MacBook Pro (Retina, 13-inch, Early 2015). Trying to boot it up results in the folder with a question mark. Trying to boot ...
Paula's user avatar
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1 vote
0 answers
265 views

Mac won't mount a new disk when formatted to APFS, but will when formatted to Mac OS Extended

I have 2 new Samsung 4TB SSDs. I am trying to format them as APFS as for me speed is of upmost importance. When I do so, initially everything seems fine, however after ejecting the drive it will never ...
paul frith's user avatar
3 votes
1 answer
275 views

Deleting APFS volume doesn't free up any space

I had a corrupt APFS volume (caused by bad SATA connection — has since been alleviated) of 150 GB reported by First Aid so I decided to create a new volume and reinstall macOS there. In the end of my ...
Andreas's user avatar
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0 votes
0 answers
211 views

Can I determine which objects are affected by invalid checksums reported for APFS, as well as the significance of that corruption?

Ventura's disk utility has found unrepairable APFS errors (invalid checksums, bit flips, fsroot tree is invalid) while running First Aid on my Mojave volume. Without knowing more specifically what ...
Andreas's user avatar
  • 2,125
0 votes
0 answers
151 views

recover corrupted Apple_APFS

I have a Time Machine backup stored on a Synology NAS that got corrupted for some reason (probably a power failure). The folder containing the sparsebundle is mounted on the Mac using smbfs. I tried ...
Rwanou's user avatar
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1 vote
0 answers
21 views

Repartitioned 1TB APFS SSD to MSDOS 120GB for Linux. Linux installer sees wrong slice names, though cfdisk reports correctly

model: macbook pro (2016) 3.5G Intel 1TB SSD Ventura 13.5 Attempt 1) Resized a 120GB partition for Ubuntu. Big mistake, lost all data. Attempt 2) Reinstalled Ventura 13.5, partitioned 120GB for EXT4 ...
queryman2000's user avatar
1 vote
1 answer
233 views

macOS 13.4 and ChromeOS Flex USB

I'm trying to create a Chrome OS Flex USB install drive, to install it via Parallels, on macOS 13.4 (2019 i9 MBP). I'm able to create it both via the Chrome browser extension, and the terminal sudo dd ...
lioman's user avatar
  • 11
1 vote
2 answers
291 views

Fusion Drive using external SSD & HDD

Coworker has an Acasis NVMe enclosure with a 1TB NVMe. Speeds are about 3000MB/s on USB4. The thing is that he has lying around a 8TB HDD 2.5 from an old PC. It would be awesome to use both as “Fusion ...
DarkGhostHunter's user avatar
0 votes
0 answers
21 views

Why do APFS containers indicate that they have no free space when each volume is small?

I have an APFS container with the following volumes: Host:~ user$ diskutil apfs list APFS Container (1 found) | +-- Container disk1 1A6DB817-9F40-47C2-9DFF-2E897D65F5C4 ============================...
watkipet's user avatar
  • 327
1 vote
1 answer
93 views

Why do fsck_apfs and tmutil report a different number of snapshots?

I'm running macOS Mojave 10.14.6 on a Mac Pro 5,1 and investigating a Time Machine snapshot issue. When I run tmutil listlocalsnapshots /, it shows 20 of them: Host:~ user$ tmutil listlocalsnapshots / ...
watkipet's user avatar
  • 327
0 votes
0 answers
38 views

On Monterey, how to have "/System/Volumes/Data" use more space than its 90 GB quota?

My "/System/Volumes/Data"'s container still have 34.3 GB free space +-- Container disk3 D4363BE0-2F5E-4275-8726-57B5EA22FF63 | ==================================================== | APFS ...
Compl Yue's user avatar
2 votes
1 answer
128 views

Estimate "true" APFS disk usage of folder without counting cloned files multiple times

I would like to compute how much "true" APFS disk space is used by a folder. This folder has many APFS "cloned" versions of the same files. A "true" count of the disk ...
Mike Battaglia's user avatar
1 vote
0 answers
2k views

Errors when running Disk Utility on APFS SSD (error: doc-id tree, volume corrupt)

On my Mac running Disk Utility / First aid produces errors that Disk Utility doesn't seem to be able to fix (full log at bottom). First: Checking the fsroot tree. error: doc-id tree: record exists ...
Sebastian's user avatar
  • 111
1 vote
0 answers
136 views

How to add/remove a physical disk to an existing apfs container

Here I have a "fusion" apfs container disk5 made from 2 partitions of physical disks. I want to add a new /dev/disk6 (/dev/disk6s2) which is a 8TB disk to be used in logical disk disk5. ...
VinD's user avatar
  • 11
0 votes
1 answer
268 views

Does adding a new APFS container damage data on the volume?

This question sounds very basic, but I have not found the answer. In disk utility I can add a new APFS volumes to an (external) disk. Does this operation affect data already on the disk? I know that ...
Ma Joad's user avatar
  • 411
0 votes
0 answers
42 views

The attached disk cannot be read from this computer. No treatment/recovery. Is there a way to fix an external hard drive without data loss?

Currently I'm using 1TB of SanDisk Proportable SSD. Actually, this SSD had a lot of problems. At first, it was used as exFAT, but an unrecognized situation occurred on the Mac, so it was recovered ...
LEE 's user avatar
  • 1
1 vote
1 answer
95 views

Interrupted a `diskutil resizeContainer diskX 0` attempt to recover unpartitioned space - ended up with a startup snapshot and a Data volume

After I got done test driving Asahi Linux on my M1 Max, I decided to remove it and recover the allocated space, 500 GB (out of a total 2TB). I uninstalled Asahi Linux from my Mac using the commands ...
noon-ng's user avatar
  • 13
0 votes
0 answers
648 views

External APFS ecnrypted volume cannot be mount, error 49218

I accidentally unplugged the cable of an external disk while it was mounted on the system, but not in a copy or read operations. I use APFS encrypted partition on that disk After I reattached it to ...
user3756354's user avatar

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