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Questions tagged [hfs]

The HFS (Hierarchical File System) is an Apple specific file system format. **HFS+** is the current standard for Mac OS X and is also referred to as **Mac OS Extended** format. HFS, HFS+, HFSJ, HFSX are all included with the HFS tag here.

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Mounting encrypted HFS partition after messed up partition table

I have an external 2 TB Harddisk that had a 1.5 TB exFAT Partition and a 500GB HFS+ encrypted Partition. I wanted to shrink the 1.5 TB to 1 TB. I used https://www.diskgenius.com/ to shrink the exFAT ...
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1answer
2k views

HFS partition fails to mount on Mac after being mounted on Ubuntu

I recently followed the instructions here to mount an Apple-formatted HFS external drive on Ubuntu. I transferred the files I needed, then unmounted the drive. Now the drive won't mount in OSX. In ...
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167 views

Mac volume reverts to Mac OS Extended

All of our lab computers have file system type Mac OS Extended (Journaled) on the boot partition. We needed to create a separate partition for use with a specific software, so we carved off 10 GB ...
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Migrating HDD's from one File System to another

I have been using Mac for many years and I have just recently switched to a Windows 10 based workstation. I have 14 HDDs (with physical backup drives =28 drives) which were all formatted in OSX ...
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How to boot installer partition

I have created a macOS High Sierra install USB as a backup for my Mac and Windows. I want to be able to use one 16GB USB drive for my Windows and Mac. I think that this is possible using Clover. I ...
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2k views

When restoring disk in DiskUtility.app, showing error “the volume on device dev disk2(source volume) is not of type Apple_HFS or Apple_UFS”

I got a new MacBook and now I’m trying to make an exact copy(clone) of my old Mac to the new Mac. Tried migration assistant, but I found it not reliable since there are still a lot of settings in my ...
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2answers
302 views

Recovering “Damaged” Files on External USB Drive: GUID, HFS (can not open files)

I had some files on an old thumb-drive, and recently I was going through and discovered that all/most of the files were no longer readable by any of my macs. I seam to remember having similar problems ...
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2answers
420 views

Is it possible to recover a formatted macOS partition

Backstory: After I went to the Apple Store today, the drive in my Mac was wiped by an employee as I was supposed to have it replaced. The replacement unit had an issue though, so they gave me my old ...
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Corrupt Mac filesystem partition [duplicate]

I'm having exactly the same issue in this question: How can I mount partition disk0s4 that became inaccessible after a clean installation of Mountain Lion? Has anyone found a solution please?
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1answer
21 views

Puny HFS performance

Is it normal to have less than 15 megabytes per second writes on a solid state drive (Evo 850 250GB to be exact)? $ date;dd if=/dev/random of=/var/tmp/test bs=4096 count=81920;date Tue Nov 22 16:59:...
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368 views

MBP SSD Deep Formatting Problem - Will Format as FAT32 but fails as HFS+

My MBP SSD crapped out the other day, I'm pretty sure it was user error (too full). I was able to run my emergency OS via external drive and collect my files, but had difficulty deleting them from my ...
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1answer
117 views

How do I remove an app folder is OSX when all else fails?

I have a folder/package in the Applications called CrashPlan.app. The uninstall failed and I am left with a folder that has a Contents folder, but aside from that, is completely empty. The folder ...
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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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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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3answers
2k views

Can’t increase partition size of cloned volume in Mac OS X 10.11 (El Capitan)

I have a MacBook with a 120 GB SSD. I bought a new one with 240 GB. I cloned the content from the old one over with an ICY BOX cloning device. I inserted new SSD in the MacBook and everything is fine ...
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1answer
272 views

Encrypt home directory only

I have a shared computer that is primarily for my use, but occasionally when I'm out of the office others would like to use it. These others require Administrator access to be able to install ...
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1answer
1k views

What is the difference between HFS+ and EFI System Partition (ESP)?

I'm familiar with manually installing certain files. In this case, I am installing rEFInd Boot Manager, see http://www.rodsbooks.com/refind/installing.html Yet when manually installing software on ...
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1answer
4k views

HFS+ invalid number of allocation blocks

Okay so a few days ago I wanted to install Ubuntu GNOME over regular Ubuntu and it gave me the option to automatically overwrite my Ubuntu installation (that I had on a separate partition from my OS X ...
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1answer
4k views

MAC OS X refuses to mount the main volume Macintosh HD, saying that there's an “Invalid content in journal”

I have a problem with my MAC. Yesterday it got stuck while it was trying to connect to a Wi-Fi network, then, since it didn't respond I decided to turn it off using the power on/off button ('). When I ...
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1answer
4k views

What file systems does Apple use in iPhones? [duplicate]

HFS WWDC 2012 Session 709, What’s New in the File System, presented by Deric Horn included the following observation: Journaled HFS+ everywhere. In the iOS Developer Library, NSDictionary Class ...
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1k views

Something appears to be corrupting my kernel.log file, causing 5-10 second lock ups. What gives?

The Problem: Lately, every 10 minutes or so, my MacbookPro8,2 has been freezing up for 5-10 seconds. During those 5-10 seconds, video/audio content stops playing, all applications lock up, and hitting ...
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Unable to mount DMG - appearing as a folder

I downloaded a DMG in multiple parts, split into .dmg.001, .dmg.002 etc. I "uncompressed" the first file (just double-clicked and a single folder .dmg got created) The dmg is of the right size (690 ...
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2answers
22k views

Can you reinstall OS X on a FileVault 2-encrypted drive?

I've been researching FileVault 2 to make sure that I understand it before I enable it on my Mac. While reading Macworld's Complete guide to FileVault 2 in Lion, I encountered an unexpected caveat (...
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1answer
787 views

Format External Western Digital Drive to be used with only Mac

I recently ordered Western Digital My PassPort Essential. I will get it by tomorrow evening. It comes pre-formatted using NTFS file-type. I need to format it, to be used with My MacBook Pro (i.e., ...
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1answer
93 views

Question Regarding Bootcamp and Windows 7

I am possible going to install windows 7 on my iMac using the standard bootcamp setup and have a question about this setup. I will store all of my large movies on the mac and will need good access to ...
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5answers
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What programs have trouble with case-sensitive (HFSX) filesystems, and how to fix them?

There are some programs that require a case-sensitive filesystem, and others that require case-insensitive. Even though Apple warns against using case sensitive file systems, in some situations it is ...
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1answer
5k views

Why is my boot partition listed as Unmounted in Disk Utility?

I recently experienced a kernel panic ("your mac must restart...") due to an issue with Macfusion, so after the reboot I loaded Disk Utility in an attempt to verify the disk in case something was left ...
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1answer
446 views

What is the data corruption risk of force shutting down a running Mac?

Eg when the power supply is cut or someone presses the power button for 5 seconds? How big of a risk am I taking to my data? Is it a 1% chance of corrupting data? I know most mac these days have a ...
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4answers
60k views

How to create HFS partition on Windows 7 machine

I've got Windows 7 running on my computer and I would like to partition my D: volume, make it HFS+ but I cannot find any tool that will accomplish this. Anyone had done this before? Is it possible? I ...
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1answer
1k views

I know how to repair disk permissions. But… Who broke them?

One of the common Mac troubleshooting steps everyone always seems encouraged to try first is to "repair disk permissions" in Disk Utility. This process usually finds random odd problems, fixes them, ...
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2answers
1k views

Confusion on Metadata | Named Forks | Extended Attributes | Resource Fork — HFS+

I think there is some general confusion on the relation between all four of these items scattered throughout the web. I wanted to get this straightened out. Are named forks the same as extended ...
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1answer
4k views

Which USB floppy drives can read HFS-formatted 400K & 800K floppies?

Does anyone know of a USB floppy drive model that can read old 400K & 800K Classic Mac OS (HFS) floppies? I have an Iomega Floppy Plus, but it can only read 1.44MB HFS floppies.
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0answers
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What are the use cases for case sensitive HFSX as opposed to default HFS+? [closed]

I just want to know when it does make sense to use HFSX instead of HFS+? HFS+ is the default partition type.
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4answers
28k views

How can I convert a NTFS drive to HFS+ without having to move the data?

How can I convert a NTFS drive to HFS+ without having to move the data? It is an external drive of 2TB and I don't want to spend too much time moving the data. This is required in order to be able ...
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0answers
581 views

What kind of partition should I use for a shared network drive used mostly un Mac?

I have a 2TB external USB drive that I'm using to share things in my home network. Now the drive is connected to my Mac Mini, that is supposed to act like a file server. Currently the drive is ...
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4answers
14k views

.HFS+ Private Directory Data?

On my file exchange partition that both Mac and Ubuntu should have access to, I cannot manage to get access from Ubuntu. This partition was created with the Disk Utility in Lion. Unlike before, ...
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4answers
31k views

Changing a Volume's “Device / Media Name”

I know a Mac volume can be renamed... obviously. But if you look at the output of diskutil you will see that a volume also has a "device name" that corresponds to the name it was given when it was ...
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2answers
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What tools and concepts are good for someone thinking about using HFS filesystem compression?

I have a client with about 60TB of data on multiple HFS+ volumes, attached directly via fibre channel and shared using AFP. We are running around 85% capacity at present, and the budget to expand ...
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3answers
2k views

How to hide folders on a windows portable disk when viewed on mac os x

I have a portable disk with NTFS format, and use it keeping my private data in windows xp. Recently I connected it to Macbook and found that the folders I set "hidden" in windows still can be seen and ...
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1answer
2k views

Can I convert a HFS+ volume to HFSX (case sensitive) without extra software tools?

After upgrading from Snow Leopard to Lion with added volume encryption along the way, my boot partition wasn't case sensitive any more. Is there a way to convert it back to being case sensitive ...
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7answers
22k views

HFS+ case-sensitive or case-insensitive — which type to use for the primary drive partition?

What reasons are there for choosing the case-insensitive version of HFS+ when formatting the primary drive partition? Would case-sensitive not always be the best choice?