Tagged Questions

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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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
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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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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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203 views

Floppy disk became unreadable after initializing it in an old Mac

I'm trying to pass some files from a MacBook Pro with Snow Leopard to an old LC 630 with an HD floppy drive and a CD optical reader. As Snow Leopard cannot burn a CD with the HFS (Mac OS Standard) ...
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2answers
7k 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
515 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
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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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4answers
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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
2k 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
257 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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3answers
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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
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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
498 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
2k 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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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
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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
385 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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2answers
4k 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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3answers
7k 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
445 views

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
1k 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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4answers
6k 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?