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Questions tagged [hfs+]

A filesystem developed by Apple Inc. to extend HFS. Also known as "Mac OS Extended" "HFS Extended."

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Recover data from external hard drive partition Mac OS X

A couple of weeks ago, I dropped my external drive while a program was writing data to it. The drive seems to spin up fine, without beeps/scratches. The drive also has EFI and Recovery partitions. One ...
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1answer
99 views

Terminal command to remove custom icon from file (HFS+)

Context In Mac OS X / macOS you can select a file in the Finder, click Informations then click the icon, and paste any image/icon that is in the clipboard. Now this file has a custom icon made of ...
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1answer
27 views

Why is macOS forcibly renaming my USB drive?

I have a USB Drive named "Cuthbert", and various apps use paths starting with /Volumes/Cuthbert when it is plugged in. However, my laptop is putting it at /Volumes/Cuthbert 1, and won't let me rename ...
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2answers
974 views

How to mount /dev/disk1 with write permissions from Recovery Mode?

Using Command + R at boot, I entered recovery mode but the /private/etc/ directory is Read-Only. Is it possible to unmount the disk then mount it again with write permissions? # sw_vers ProductName: ...
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1answer
2k 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
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0answers
21 views

Mount HFS+ filesystem with disable read and write caches

I've got the HFS+ filesystem represented by .dmg image file. For security reasons I'd like to make sure every I/O applies directly to the .dmg file and not through any kind of memory in the middle. ...
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23 views

Trying to move OSX to free space above it at top of GPT partition table

This is my partition table according to the gpt tool with GUID's and labels start size index contents 0 1 PMBR 1 1 Pri GPT ...
3
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1answer
380 views

What would be the cleanest method of converting my APFS macOS partition back to HFS+?

After installing High Sierra when it was released, I was initially happy with APFS and gave no care to its relative novelty. Recently I've been using Linux, macOS, and Windows, and having to reboot ...
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1answer
292 views

Extract HFS+/HFSX volume from dmg file

Dmg file contains a volume with identifier Apple_HFS, which is compressed with various methods (zlib, bz2, etc.), how can I extract a raw, uncompressed HFS volume from DMG file? Right now, it cannot ...
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1answer
74 views

auto mount HFS+ filesystem from disk image (.dmg file)

I'd like to auto mount my dmg file which represent disk image with single HFS+ partition upon every boot. is it possible through autofs ? do I have to set the location of the dmg file in any ...
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1answer
193 views

Will migrating an SSD drive to APFS prolong its life?

For Apple hardware that ships with SSD only storage, will switching the file system from HFS+ to APFS prolong the life of an SSD drive?
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1answer
104 views

High Sierra iconserviceagent goes wild

Nearly every time I mount an HFS+ volume on macOS High Sierra 10.13, a process called iconserviceagent reads all its files, sometimes hundreds of gigabytes. The system slows down to a crawl and the ...
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1answer
759 views

Is it OK to use an HFS+ start disk with High Sierra?

I have a clone of my internal SSD on an HFS+ partition of an external drive. I was wondering if there are issues with using such a disk as a startup disk with High Sierra.
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1answer
241 views

Why does Mac OS X 10.11 ignore new partition size?

Because running out of space on a MacBook Pro 13'' 2009 (type A1278), I cloned its 160 GB Hitachi drive to a 1 TB Seagate HDD. The MacBook is installed with OS X El Capitan (10.11). Summary: The ...
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1answer
6k views

HFS+ vs APFS: What are the pros/cons of converting HDDs to APFS?

I've got a few USB 3.0 HDDs I use for backup and game storage, all formatted in HFS+. What are the advantages/disadvantages of migrating to APFS on an HDD?
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2answers
473 views

Can you use an APFS-formatted Mac with a pre-APFS Apple Time Capsule?

I'm thinking of upgrading to macOS High Sierra, however I'm a bit cautious with the APFS, also because it just came out. Are you able to use Time Machine on a Mac with APFS-formatted disks with an ...
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3answers
7k 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 ...
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1answer
216 views

MacBook Pro (Late2011) fails to boot and repair HDD volume:

I have a MacBookPro ("late 2011"/ MD313LL/A) (i5, 4GB, 500 GB Toshiba HDD) with MacOSX 10.9.x on it. The MacBook won't boot. In verbose mode I see the following information: During boot, after ...
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0answers
198 views

CoreStorage volume not journaled

I have an interesting case on an iMac. It has a fusion drive and at some point it stoped booting up. Booting up in single-user mode, I tried to mount the boot partition but it gave an error "...
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227 views

HFS+ journaled and encrypted flash drive does not accept password

I have almost exactly the same issue as it was discussed here: my encrypted flash dongle does not accept the password that I KNOW goes to it (besides, typing a wrong password makes the dialog do the ...
3
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1answer
59 views

Can't rename directory by changing upper- to lower-case on hfs+ partition in Ubuntu

I'm new to Linux, and just installed Ubuntu 17.04 on a dual-boot MacBook. I'm having trouble with directories I'm creating on an hfs+ partition (created with gparted, so I can see files on it when ...
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1answer
372 views

Recover files after Paragon HFS+ Corruption

I have been using Paragon HFS+ to get write access to my Mac HFS+ partition from within Windows 8. Suddenly half the files in a directory have gone missing. A few months ago I copied the files onto ...
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0answers
61 views

How do I prevent OS X from immediately trying to mount unlocked drive / prompt for password?

Due to a hard disconnect of my encrypted external hard drive, it seems my HFS+ partition has become corrupted. Every time I unlock my hard drive, OS X tries to mount it silently in the background and ...
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1answer
37 views

How does file's More Info attribute work, and how to access it from a terminal?

I want to understand where parameters like More Info and Comments are really stored (is it hfs filesystem specific?) and how to access this type of information from terminal. "Who" updates this More ...
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1answer
343 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? ...
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1answer
136 views

Cannot change anything inside a folder, however it's not Locked and I have all the rights

I copied several folders from my TM backup (made in El Capitan) to the current system (Sierra), (I also have different username than on the system where I made the backup if that could matter) and now ...
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1answer
118 views

How can I avoid data mangling in filenames when copying files between Linux and macOS?

When we transported a CMS filesystem and mysql dump via rsync from one Linux server to another Linux server, we used a MacOS in the middle to store the data temporarily. After the CMS was up on the ...
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2answers
79 views

Restore files after changing disk format from NTFS to HFS+

My friend had an external drive with NTFS format. She started using iOS, so she formatted it to HFS+ using iOS Disk Utilities. She had realized her mistake and unplugged the drive just after ...
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1answer
2k views

Partition on HFS+ external drive: “Invalid number of allocation blocks”, file system check exit code 8. Unable to repair, even in recovery mode

As the title says, I'm getting the error "Invalid number of allocation blocks" on a particular HFS+ partition of an external drive. I am unable to repair, even in recovery mode. Log results when I ...
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0answers
508 views

rsync -E on Mac OS X, something I don't understand with ._ files

I'm working to replace Carbon Copy Cloner, that I've been using to backup my mac for years, with simple bash scripts using rsync. A thing that I'm not understanding is the rsync -E option, that ...
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1answer
123 views

Why max inode count became 2^32-1 on my hdd after update to OS X 10.12 Sierra

After upgrade from OS X 10.10 Yosemite to 10.12 Sierra i noticed that % of used inodes became 0% instead of 99%. As far as i understand max number of inodes became 2^32-1 but i can't google anything ...
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0answers
51 views

What is the maximum number of tags supported?

My concern is that this answer on Superuser implies that there is a bitfield of a fixed size in the HFS+ extended attribute that is used for storing tag flags. Or maybe that just for the first N tags, ...
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1answer
621 views

External disk reports incorrect amount of free space after doing clean up via terminal. DiskUtility's Repair temporarily fixes it, but why?

I have an external 5 TB USB drive (HFS extended) which contains one encrypted disk image (HFS extended) of an equal size (practically 5 TB). All the external disk's work files are inside the encrypted ...
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1answer
537 views

NTFS and Veracrypt VS HFS+ Encrypted?

I want to create a backup disk where I occasionally connect it to my macOS and copy important things manually. I may also connect this disk to Windows in rare cases. I also want to encrypt the disk/...
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1answer
304 views

Why does Stellar Partition Manager insist on keeping 128 MB “free space” on the medium?

I was just using Stellar Partition Manager to format a flash drive to HFS+. I deleted the current FAT32 partition and created a new HFS+ partition. I tried to make it as large as I could. Stellar ...
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1answer
855 views

How can I resize an image created using dd which contains a block-by-block copy of my Mac drive?

I created a copy of a working (but getting a few disk errors) 1TB spinning disk drive using dd. I can mount the image (hdiutil attach or just double click in Finder) no problem and see the files on ...
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1answer
369 views

How can Disk Drill say it has recovered 2.4 TB of files when the HDD is only 2 TB?

I had a serious failure on a 2TB external HDD this week. Yosemite says the drive is "not readable by this computer." Oh well, it happens to all HDDs sooner or later. Even though the contents could ...
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1answer
84 views

El Capitan Installer consistently corrups HFS+ superblock

The standard, non-beta El Capitan installer corrupts the HFS+ superblock, and states that it cannot fix the hard drive and cannot continue with installation. (The repair tools won't fix the hard drive ...
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1answer
102 views

WD My Passport 0820 USB HFS+ data disk drive partition problem following accidental use of Recovery Assistant

I have edited this post in view of recent developments I have a 2 TB USB Disk used for all my data. I accidentally ran Lion Recovery Disk Assistant on it, instead of my Pen Drive, to make a bootable ...
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2answers
9k views

Switch back to HFS+ from APFS

Recently I heard about new apple file system. Of course I wanted to try it. So I moved all files to one external hard drive for safety... And accidentaly switched it to APFS... How to revert changes? ...
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1answer
665 views

HDD corruption after power cutoff

Yesterday a breaker tripped in the same room as my Mac Pro 1,1 running Yosemite (Hacked boot.efi.) All other machines powered up but this one. Attempting to mount via Target Disk Mode timed out, so I ...
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1answer
828 views

Best file system for USB stick for backup purposes

I bought a 128GB stick to back up my MacBook Air (Time Machine). This way I don't need to re-format my external HDD I use for backing up files from my Windows machine. Since I won't be using the stick ...
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0answers
202 views

Undo/Recover a quick formatted JHFS+ HDD drive

I just have made the biggest mistake in my life, accidentally format ~2TB of my personal data. Here is information about the Disk : 2TB HDD Drive : GUID Partition Map : OS X Extended (Journaled) : ...
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1answer
1k views

HFS+ Partition of Mac OSX is not recognized in Windows 10 Bootcamp

I installed triple systems (Mac, Windows, Linux) on my Macbook Pro retina mid 2014 with rEFInd boot loader. Hfs+ partition used to be visible in Windows 8.1 Bootcamp. But after updating to Windows 10,...
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1answer
2k views

Can I remove BootCamp HFS+ driver

So, I have an iMac 27" Late 2012, and I have just installed Windows 10 Home 64Bit through BootCamp. BootCamp comes along with several "support software", useful drivers made for Windows and Apple ...
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1answer
128 views

Can I use the free space on an NTFS Hard Drive to make a “Mac OS Journaled” partition to use as a backup space?

I have a 1 TB NTFS HDD which has 350GB free space, how would I format that 350GB to use it as a backup space for my MacBook? diskutil list output: /dev/disk1 (external, physical): #: ...
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2answers
484 views

How Do I Create a Named Fork and Store Data In It?

It says here... https://en.wikipedia.org/wiki/Fork_(file_system)#Apple ...that the HFS+ file system in OSX supports "multiple named forks". How do I create a named fork at command line, and then how ...
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0answers
58 views

Browse or view HFS Journal?

Is there any way to examine the journal of an HFS filesystem? Command line methods? GUI methods? (X is fine.)
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2answers
3k views

What filesystem should I use to share across Mac (Yosemite) and Linux?

I need to move large files (5-5Gb) from a Mac to a Linux machine. Network transfers are too slow, so I wanted to use USB drives. However filesystems seem to be a bit of a nightmare: HFS+ is hard to ...
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1answer
448 views

What is the max number of hard links in OS X (10.11)?

I have a file that I keep linking to. It's up to 45 links now. Does anyone know how I can find out what the maximum number of hard links is in OS X 10.11 (El Capitan)?