A file system is the specification of how files in a computer should be stored, named and organized. This tag should be used for generic file system questions. For specific file system questions (FAT, NTFS, ext4, ...) use the appropriate tag instead.

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Cross-platform file system

I would like my external drives to be readable and writable from Linux, Mac OS X and Windows. FAT32 works, but the 4 GB file size limit is a showstopper these days. Are there any alternatives?
110
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8answers
153k views

How to read ext4 partitions on Windows?

Is there a way to read ext4 partitions from Windows? If so, what can I do?
52
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6answers
20k views

Using UDF on a USB flash drive

After failing to copy a file bigger than 4G to my 8G USB flash drive, I formatted it as ext3. While this is working fine for me so far, it will cause problems if I want to use it to copy files to ...
7
votes
2answers
5k views

A free utility for NTFS writing on Mac OS X 10.6.5? [duplicate]

Possible Duplicate: How to copy files to read-only NTFS hard drive on a Mac Coming from Windows (Vista/7), I have a few NTFS formatted Hard Drives. Are there any programs to make OS X ...
112
votes
2answers
152k views

Easy way to find out which process is locking a file or folder in Windows? [duplicate]

Possible Duplicate: How do I delete a ‘locked’ file? How can I find out which process is locking a file or folder in Windows? For instance if you are trying to delete a folder ...
30
votes
17answers
13k views

Hibernating and booting into another OS: will my filesystems be corrupted?

IMPORTANT If you came here looking for an answer to this question, please read all the answers below. There are some testimonials from people who have lost data doing this. If you plan to do this ...
147
votes
1answer
71k views

“directory junction” vs “directory symbolic link”?

MKLINK [[/D] | [/H] | [/J]] Link Target /D Creates a directory symbolic link. Default is a file symbolic link. /H Creates a hard link instead of a symbolic link. /J ...
259
votes
8answers
31k views

Why is there such a big difference between “Size” and “Size on disk”?

As you can see below, there is so much difference between the Size and Size on disk fields in my folder. Why is that? I know that Size on disk should be a little more than Size because of ...
39
votes
3answers
6k views

What are the various link types in Windows? How do I create them?

Is it possible to link two files or folders without having a different extension under Windows? I'm looking for functionality equivalent to the soft and hard links in Unix.
20
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10answers
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Mount second drive as c:/Users in Windows 7

So about a month ago I set up a Windows 7 Professional machine where I was able to mount the secondary hard drive to the path C:\Users. This put all of the userspace files on the second hard drive ...
26
votes
3answers
19k views

What is the difference between size and size on disk?

Looking at the properties for a Windows file I get two attributes, "Size" and "Size on disk", and "Size on disk" is always larger. What do these two metrics mean?
3
votes
2answers
748 views

When a disk read or disk write occurs, where does the data go?

I understand that there is such a thing as a disk controller which contains a buffer, but was wondering if the CPU reads directly from this buffer, or whether the data must first go to a specific ...
14
votes
3answers
22k views

Windows 8.1 missing font files after restart

Some days ago I rebooted my windows 8.1 system. After the reboot all my system texts were very cryptic - showing only some strange symbols. After some investigation I discovered that my ...
7
votes
3answers
16k views

How can I recover/undelete files from an ext4 partition?

Has anyone had success recovering deleted files from an ext4 partition? I've tried various utilities, but none have worked yet. I'd be grateful if someone can share a success story!
16
votes
3answers
7k views

View Filesystem Access in Real Time on Mac OS X

Had a sysinternals tool (filemon) for that, but now I can find something similar for the mac. I'm a developer and I basically want to debug "file not found" or "wrong permissions" errors.
15
votes
1answer
10k views

Permission to make symbolic links in Windows 7?

How can I grant a particular user the permission to create symlinks in Windows 7? I've searched through "Group Policy" and Google, but haven't found anything. On a side note, is there a way to ...
26
votes
2answers
10k views

How do I remove a file named “NUL” on Windows?

I have a Windows XP box (NTFS filesystem) on which I found a file named NUL. I have not been able to remove this file in any usual way. The file appears to be owned by Administrator in the SYSTEM ...
13
votes
5answers
45k views

Filesystem to use for external hard drive to be used with Mac, Linux and Windows machines [duplicate]

Possible Duplicate: Cross-platform file system I have a rather large USB drive that I'd like to be able to use across the different machines I own. I'm having a hard time figuring out what ...
5
votes
3answers
1k views

Mount ext3fs in Windows

I'm surprised I couldn't find this question trough the search. What's the easiest/best way to mount an ext3 formatted partition in Windows (7 RC, in this case)?
14
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4answers
25k views

What filesystem to use when using both Windows and Linux? [duplicate]

I will be buying a 2TB hard drive soon, and would like to use it as media storage. I would like to be able to read/write from both Windows (version 7, 64bit) and Ubuntu Linux, and I need support for ...
13
votes
6answers
47k views

Reduce Size Of Windows Folder in Windows 7

In normal PCs the Size of Windows Folder is 6 to 8 GB but in my Case its 25GB, How can I delete the unwanted files from the Windows Folder which, in turn, will optimise my C Drive size. Mine is ...
2
votes
2answers
3k views

Windows 7 disk properties dialog reports more used space than total size of files on the disk

I have two hard drives (same size, same partitions, same model) that have been synchronized using FreeFileSync. They are used to store data, not the system. After sync, the drives should report same ...
32
votes
3answers
3k views

Have a file named ~ (tilde) in my home-directory

I just noticed that I have a file called ~ in my ~-directory. $ ls -la ~ ... -rw-r----- 1 x1 x1 733962240 Mar 1 17:55 ~ ... Any idea how I can mv or rm it?
16
votes
5answers
16k views

Choice of filesystem for GNU/Linux on an SD card

I have am embedded ARM-based system running on an SD card. It's currently Debian GNU/Linux using ext3 as filesystem. As I'm about to reinstall the system, I started wondering about changing to a more ...
10
votes
5answers
10k views

How do I log file system read/writes by filename in Linux?

I'm looking for a simple method that will log file system operations. It should display the name of the file being accessed or modified. I'm familiar with powertop, and it appears this works to an ...
16
votes
3answers
7k views

Get mac tar to stop putting ._* filenames in tar archives [duplicate]

Possible Duplicate: Why do I get files like ._foo in my tarball on OS X? I create autoconf scripts on a Mac. When tar runs, it puts all of these ._foobar names in the archive: ...
17
votes
6answers
28k views

How do you make Windows 7 fully case-sensitive with respect to the filesystem?

I want to make Windows 7 case-sensitive when it reads/writes anything on the hard drive (the C drive, or any other NTFS drive). I found a video via google that says to change the registry key ...
5
votes
4answers
446 views

How do I delete a file that is in use by another process? [duplicate]

Possible Duplicate: How do I delete a 'locked' file? More specifically, I'm trying to rename or overwrite a file, and get the message Access Denied. Make sure the disk is not ...
7
votes
1answer
6k views

Cross-platform usable filesystem with large file support

What is the best filesystem to use cross-platform (Linux, Windows, OS X) which supports disk sizes of at least 2TB and file sizes >4GB? I'm planning to use it on a USB drive on different computers. ...
6
votes
6answers
5k views

Best filesystem for use with multiple OS? [duplicate]

what's the best file system to use with windows, osx, and linux that is not fat32. I need a file system that can share large video files with good performance
15
votes
1answer
1k views

Cross platform Hard Disk encryption?

I would like to encrypt my hard drive so that it requires a password to access it. However features like BitLocker in Windows will only work under Windows, and cannot be accessed from another OS such ...
6
votes
1answer
7k views

Newly formatted (NTFS) external hard drive already has 'Used space'. What determines the used space's amount? Is it correlated to the HD's capacity?

I just bought a new external hard drive (WD Elements - 1 TB). In a PC with Windows 7, I formatted it by Right-clicking the drive > Format (Quick Format - NTFS) before using it and, and then checked ...
4
votes
3answers
1k views

External hard drive how to format it?

I just bought a hard drive of 500GB that I want to use on Mac OS X and GNU/Linux but be able to use some file on Windows. Basically I have to deal with FAT32 (That doesn't support file over 4GB), ...
49
votes
5answers
8k views

Directory vs. Folder

Are both names synonyms or should one prefer one name over the other on different platforms?
17
votes
1answer
15k views

How many files can a windows folder contain?

How many files can a windows folder contain? This question is asked here but then the question text pollutes the question with issues of "rules of thumb" So to be clear, this question is: How many ...
17
votes
4answers
3k views

File sizes in Windows not making sense

Here I have this file in Windows: But isn't 62,563 bytes 62.6 KB?
13
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3answers
21k views

How to read EXT2 from Windows 7 64-bit?

Are there any working solutions for accessing and ext2 filesystem from Windows 7?
11
votes
3answers
8k views

Are there any negative effects of disabling the Last Access timestamp?

In Windows, you can disable the last accessed timestamp by setting NtfsDisableLastAccessUpdate to 1, for instance by executing this from the command line (the computer must be restarted before it ...
6
votes
3answers
817 views

Is there a filesystem that is “friendly” to both windows and Linux? [duplicate]

Possible Duplicate: Suggestions for sharing and using data between Ubuntu and Windows 7 dual boot I'm planning to install Ubuntu 10.04 with Windows 7. (I'm new to Linux, have to use at work ...
2
votes
2answers
4k views

Can I clone a root file system of a running server via ssh?

I want to make a backup of a running server. Every config files and everything without turning it off. How can I accomplish this? Is it ok to try copying it all? Because I had problems with the root ...
2
votes
4answers
720 views

Windows XP slow directory move

When I move a directory containing 900 MB in 4k files to another directory in the same filesystem, it takes nearly 1 minute and I hear the disk working. It's NTFS on Windows XP, the disk is quite fast ...
6
votes
2answers
4k views

How can I recursively clear the “Hidden” file flag on Windows Vista?

A friend's computer was recently infected with a virus. I hope the virus has been removed successfully. But, it appears that the virus set the "Hidden" flag on most directories and files on the ...
6
votes
1answer
350 views

Will I suffer any major drawback(s) if I have the drive formatted as FAT-32

Is there any disadvantage(s) of using a 500GB external hard drive formatted as FAT-32 or is it simply a choice? I am asking this because I am an owner of a PS3 and it only recognizes FAT-32 formatted ...
5
votes
1answer
8k views

How to mount an NTFS filesystem, allowing all users full access?

How could I mount an NTFS filesystem in a way that would allow all users full access to it? If I use sudo mount -t ntfs /dev/sda1 /media/drive, then only the root user can use it. It won't let me ...
2
votes
2answers
3k views

What is a file system which has r/w on all major OSes [duplicate]

Possible Duplicate: Cross-platform filesystem What is a file system which has r/w on all OSes like windows, linux and Mac. Windows comes with FAT and NTFS support and EXT3 support can be ...
25
votes
9answers
16k views

How to monitor a folder for changes, and execute a command if it does, on Windows?

There are similar questions for Linux and Mac, but I'm after a Windows solution here. The problem is as follows: I want to write several (js) script files in a folder, and have a program monitor ...
18
votes
2answers
66k views

Creating ext4 partition from console

I have a volume /dev/sda1 (1.2 TB) containing an NTFS partition using 0.6 TB space. I want to make an ext4 partition in the remaining 0.6 TB space. I have not tried anything yet because I don't want ...
12
votes
4answers
47k views

Reformat SD card to NTFS

I want to reformat a 16 GB SD card to NTFS so that I can use it to transfer large files (larger than 4 GB) from one computer to another easily, but my computer will only allow FAT ...
13
votes
2answers
18k views

Which file system to use in between OSX and Linux

I have got my paws on a large USB drive which I'd like to use as a backup/general storage at the office. I was thinking of having two partitions one of Time Machine backup and one for general storage. ...
13
votes
2answers
479 views

Is it possible to mount a volume to a custom drive prefix, e.g. “myDrive:\”?

Am I just a dreamer, or does something like this exist?