The system used to format and organize files on a disk. This includes directory structure, permissions management, metadata, and more. The current default file system for the Mac OS is HFS+

learn more… | top users | synonyms (2)

45
votes
8answers
17k views

Can I make a DIY Fusion Drive?

I have a Mac Mini with two drives: a 256GB SSD and a 500GB HDD. From what I've read, the new Fusion Drive does all of it's magic in software, using the Core Storage APIs. Can I get my setup to ...
3
votes
4answers
1k views

What techniques for disk, volume and file system management are possible with OS X, but troublesome within Disk Utility?

In the past, Disk Utility was the best starting point for the vast majority of disk-related tasks. As technologies within (or possible with) OS X have developed – without equal development of Disk ...
25
votes
4answers
15k views

How to set to open folder with enter in finder?

I want to set to open a folder in finder with Enter. I know it's possible to open a folder with ⌘ Command + ↓ Down Arrow but I don't like it and I never use it because it's easier to use the ...
8
votes
2answers
386 views

Why is there a duplicate entry for my TextMate?

I was changing the default program to open .txt files with and I noticed 2 entries for TextMate. Its one of those little things that annoy me. How can I fix it? I didn't see 2 directors of ...
12
votes
3answers
2k views

Problem with “Always Open With” in OS X

I want know how can I apply a software to open all my same document, for example I want to open all my PDF document with Skim but when I right click on it> open with > other and choose my desired ...
8
votes
6answers
15k views

Disable storage of invisible files “._” on my cfs or smb network storage

I use OS X Mavericks and have some company storage drives mounted (using smb or cfs). (smb://username@address.path.toserver.com/directory/data). When I work with files on the drive or copy files to ...
4
votes
5answers
2k views

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 ...
2
votes
3answers
4k views

Automatically launch a program or action when an external drive or disk is connected

I have an external drive. Is it possible to launch a program or perform an action when I connect it or plug it in?
1
vote
1answer
7k views

Mount folder as a volume (OSX)

Is it possible to (auto) 'mount' folders as Volumes? I have a large DAS Volume, 'Data', that contains all my data. To make paths shorter and more future proof, I'd like to have Volumes like ...
12
votes
4answers
13k views

Simplest way to prevent iTunes from automatically launching when iPhone/iPad is connected

Everything is stated in the title. When I connect my iPad or iPhone iTunes automatically launches. What is the simplest way to prevent this from happening?
3
votes
2answers
2k views

How to setup a default program opening an unknown file extension?

I tried to open a file with an extension name of adb in Finder (to be precise, PathFinder). When I clicked the file, vi editor is activated to open the adb file. I didn't do anything with the adb ...
36
votes
2answers
844 views

Where should I store command line applications?

When I download command line applications they are located in my ~/Downloads/ directory. But I feel this is wrong place to have a command line application located. Where in the Mac OS X filesystem ...
13
votes
4answers
47k views

How to write on FAT32 and NTFS from Mountain Lion?

What is the best free software for OS X Mountain Lion for enabling write support for FAT32 and NTFS?
19
votes
3answers
7k views

Linus Torvalds and the OS X Filesystem

Back in 2008, Linus Torvalds famously said in an interview that "OS X in some ways is actually worse than Windows to program for. Their file system is complete and utter crap, which is scary." I've ...
6
votes
6answers
14k views

Is it possible to mount SharePoint as a volume in 10.6?

Background My office uses: Microsoft SharePoint to store and version our documents Microsoft Office, with Microsoft Document Connection to connect to the SharePoint site. Question 1 Can Finder ...
1
vote
5answers
692 views

How can I create an entry in the /Applications folder that runs a command in the terminal?

I would like to have an item in the /Applications folder that will open a new terminal window and run a specific command inside. How can I create this?
4
votes
0answers
162 views

“Open with” in Finder.app gives duplicate entries [duplicate]

Possible Duplicate: How to omit apps from external drives in “Open With” menu? in finder's open with menu are a lot of dups. I am running latest OX X and patches. I googled and found ...
3
votes
1answer
1k views

How to delete leftover files from aborted migrations?

I recently got a new MacBook Air and used Migration Assistant (henceforth abbreviated as MA) to transfer my stuff from my old MacBook Pro. However, until MA actually worked all the way, I had to abort ...
8
votes
1answer
8k views

What is standard for os x filesystem? e.g. /opt/ vs. /usr/

What does and should go into /opt/ and what should/does go into /usr/? My understanding is that /usr/ used to be for user home directories, but since that exists in /Users/ - what is the purpose now? ...
9
votes
2answers
11k 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 ...
12
votes
3answers
11k views

How can I rename a Logical Volume Group?

I have noticed that while I can safely change the name of the Logical Volume (LM Volume) in /Volumes (currently: Apple SSD), I cannot find a way to change the name of the Logical Volume Group ...
9
votes
1answer
1k views

Why are the alias so big in filesize in Mountain Lion?

I noticed the alias(es) that I create in Mountain Lion are very big in filesize (for example an alias to a folder is 5.8MB!) Compared to Leopard, they were just about 500KB. Why is this? and is ...
5
votes
4answers
39k views

Alternative to Tuxera NTFS and MacFUSE?

Im trying to mount files to an NTFS format drive, I read on the internet that either Tuxera NTFS or MacFuse work for such things. However TuxeraNTFS filled my USB drive with space that should be free ...
16
votes
1answer
3k views

Why does OS X require admin privileges to unmount a drive from the terminal using `umount` but not when using Finder?

Anyone can unmount a usb drive from Finder by clicking on the "eject" icon next to it. However, only a user with administrative privileges can unmount a drive from the terminal using umount. Are ...
7
votes
3answers
6k views

What filesystem does iOS use?

I can't find this information documented anywhere. What filesystem do iOS devices use? Did Apple stick with HFS+? Is it different between devices and iOS versions?
9
votes
1answer
28k views

What is iLifeAssetManagement, and can I delete it?

I have 5 GB of stuff in ~/Library/Application Support/iLifeAssetManagement and I'd like the space back. What is this stuff and how can I reduce its footprint?
2
votes
2answers
421 views

Where is the text expansion file located with OS X?

I'd like to give a colleague all of my text expansions without her having to re-enter them on her Mac. I was hoping to locate the file, then simply send her a copy to replace her own. (She doesn't use ...
2
votes
2answers
662 views

How to make Smart folder like physical folder with the combined contents of two folders

I have an application which looks for its data (*.txt) files in a folder. I have two folders containing text data that I need to keep separate, but it would be useful to have the application see the ...
1
vote
1answer
35 views

Document editing on the ipad

It is not clear to me how the file system in iOS 8 works. Consider e.g. the Dropbox app, when I open a document in another app, what happens? It looks to me as: copy of the file is created file ...
0
votes
2answers
2k views

What causes chmod to not work on an ssh file in OSX?

I am trying to mount private keys from USB stick. OSx does not allow me to change their permissions, why? How can I change them? In other words, how can I add private keys from random USB stick to ...
3
votes
1answer
414 views

What is the function(s) of the hidden Debug menu in Disk Utility? [duplicate]

What is the function(s) of the Debug menu and why is it hidden by default?
3
votes
3answers
12k views

Whenever I try to delete a file in Finder I get “Finder wants to make changes. Type your password to allow this.”

I can't figure out why Finder isn't letting me delete files under my home directory without providing my password. Here's a listing of some files on my desktop: ~/Desktop steve 526$ ls -l@ flower* ...
2
votes
1answer
148 views

Why doesn't /proc exist in OS X?

What is the reason that /proc does not exist in OS X? I was curious to find file descriptors that a process was using in my Mac. The way I do it in linux is to go in /proc/fd folder of that process. ...
2
votes
2answers
1k views

Run plist command every 5 seconds

I have the following plist file in my User/Library/LaunchAgents folder. It presses the "g" key every 60 seconds. My question is, how can I change this to press the "g" key every 5 seconds? ...
1
vote
2answers
91 views

How to get file metadata?

How to get extensive filesystem information about a file? I have a file that consistently causes errors in my backup utility (Unison). I'm trying to narrow down a bug and find out how it is different ...
1
vote
2answers
690 views

How many files in a folder is too many?

Many years ago I vaguely recall that the Finder in Mac OS X would start having problems if a folder contained 2,000 - 3,000 items or more. Apple doc says that the HFS Plus file system has a ...
1
vote
1answer
168 views

Difference between du and Finder file sizes

I was having a look at the size of libBLAS.dylib at some location in my Mac and du showed it's file size as 572K while the allocated file size (showed by Finder) was 1.4MB. I've read that the lack of ...
1
vote
1answer
3k views

I want to install Adobe CS 6 on an external hard drive but can't select the install location

My SSD is formatted case sensitive, so when I attempted to install I got this: Installation on case sensitive volumes isn't allowed. Please choose a case insensitive location. But I can't select ...
0
votes
1answer
68 views

Resizing system partition

When I installed OSX Mavericks, I left free space after my system partition in case I wanted to install a second OS there. This has proved unnecessary — I've never modified the partition table — and ...
0
votes
1answer
83 views

OSX partitions wiped by NAS RAID

So I messed up when I thought it would be a good idea to stick some hard drives into my NAS. It's now changed the partition table to a RAID0 one and my data has vanished. What are my best chances of ...