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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Is it safe to resize a BTRFS partition that is part of a multi-device volume?

I have a multi-device BTRFS volume and I would like to re-size one of the partitions. To be more precise: My /home is spread across two separate BTRFS partitions. I shrunk down another partition to ...
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210 views

How do I determine what file occupies a given sector in Mac OS X?

There are similar questions for Windows and Linux, but I need this on OS X. The filesystem is HFS+, journaled. I have a sector LBA, I could find where a partition starts with gpt (though it refuses to ...
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24 views

Difficulty removing corrupt directory

I have two disks in raid 0. I ran fsck on them and long story short, didn't fix it completely. I found it is all in a single directory. I dont mind losing this dir completely so i tried to rm it. I ...
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82 views

My directory has become recursive. How can I remove it?

The directory structure of one of my folders has become recursive or something, making an almost endless loop until I cannot go further down: ...
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24 views

Speedier File Access in Window Manager/File Explorer when File Names have Similar Starts

I was wondering both from a Windows [7] and a GNU-Linux system set-up perspective: When you are opening files in the File Explorer/Window Manager and you type in the first letters in the file's name ...
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195 views

Why does it take so long time to permanently delete files from a USB memory?

I'm deleting a Python installation folder (12000 files, 256 MB) from a USB flash memory from Windows. It is currently expected to take 40 minutes. Why? I thought it would be enough to change a couple ...
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47 views

How to recursively restore older folder version in Windows 7?

While working on the computer (Windows 7 - HP Laptop), I tried to move a large folder and the system/operation froze. I tried to kill the process from the task manager, then restarted the computer. ...
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80 views

How are ties broken in AuFS with the top-down-parent file creation policy?

The AuFS manual says: Policies for Creating create=tdp | top−down−parent Selects the highest writable branch where the parent dir exists. If the parent dir does not exist on a writable branch, ...
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34 views

Is it possible to create an instance of windows that has the limited amount of files needed to run

I have been experimenting with virtual machines and I am trying to figure out if their is a way to create a limited instance of Windows from your own version you are running? An example would be that ...
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132 views

Sharing storage on Linux and Solaris

I'm looking for a solution in order to share a san mounted volume between several hosts running on Linux (RHEL) and/or Solaris (Sparc). Note that I basically need to share a set of directories ...
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282 views

Folder doesn't show up in explorer, cmd, and python even though I can access it, how can I fix this?

I am accessing another computer on the network using a mapped network drive. The path looks like \\192.168.0.100\d$ which is mapped to my computer's "m" drive. I can access, view, create, delete, ...
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397 views

force upperdir overlayfs to re reread/reload lowerdir

am having the following problem with an overlayfs: I can mount an overlayfs fine using the following line in my etc/fstab none /home/student overlayfs ...
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307 views

Does a smaller cluster size increase the ratio of NTFS compression?

I read that NTFS compression needs a partition formatted with an allocation unit size <= 4KB. Could a smaller cluster size of a partition give more compression and lessen wasted space? For ...
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147 views

OSX network filesystem with local MRU cache?

I don't know if this is possible, but here is the problem I'm looking to solve: My local computer has a 128G hard drive, and I have a network mounted drive containing about 1TB of data Most of the ...
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357 views

How to confirm sector error on a video DVD

If a DVD skips at around 21:00 mark is there anyway to relate that to kernel messages?I would like to know if the DVD format is standard enough that I could compare the time the movie skips with the ...
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1k views

NFS client (SFU in Windows 7) creates folders with 'x' bits set to false

I have a drive mounted on a Windows 7 64-bit machine from a VirtualBox Ubuntu VM via NFS. Whenever I try creating a folder from Windows, the folder is created with its executable bit set to false, ...
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424 views

Windows 7 created a Encrypting File System key for me. How can I tell if it's in use?

I never knowingly created an encrypted file system, or encrypted files. This similar question proposes that it might have been Office 2010, which is a possibility. (Though it's irritating that some ...
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698 views

Unionfs-fuse wont map directory onto itself

So I tried to union two directories together and failed. Here is a transcript of what I tried, and based on tutorials and information I've seen from googling around, I'm pretty sure this should work. ...
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17 views

File system tracker

As everybody I have gigabytes of critical files storing on my NAS which is syncing with online storage. But sync conflicts or just hard drive errors can break my solid storage system. I'd like to ...
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11 views

Backup a big file with binary diff

Edited here is my problem: I have a file A (10GB) and a file B (10GB). File A and B are slightly different (diff is around 500MB). I want to the file A to be exactly as B as fast as possible. One ...
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27 views

Ext4 allocation pattern with random writes in sparse file

If I create a large (a few GB) sparse file in ext4, and then write randomly throughout the length until all 4k blocks have been "touched", in the absence of other heavy write load, can I expect that ...
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19 views

What happens to ReFS if I reinstall Windows?

ReFS seems nice. As far as I know, it is some sort of software RAID. If so, the information is managed by the OS. What happens somehow Windows is corrupted and I reinstall Windows? Is all information ...
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24 views

Snapshotting virtual disks mounted in Windows without using vritualization?

I know that you can mount VHDs in Windows, but you can't create snapshots on the go, like in virtual machines. You have to unmount it first, create a differential VHD using Diskpart and mount it ...
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22 views

ext4 superblock checksum?

I'm reading the ext4 superblock, but its s_checksum (offset 0x3FC) is always zero. Also the s_checksum_type (offset 0x175) field is zero as well, however according to ...
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43 views

Linux LUKS and choice of filesystem

Which filesystem displays the best performance when running on a LUKS encrypted partition? Does it make sense to use f2fs when the LUKS partition is on an SSD, or does the device-mapper abstraction ...
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474 views

USB disk not auto-mounting in Ubuntu 12.04

It used to, but suddenly now it doesn't. The device shows up in the following: dmesg | tail -1 [394191.758315] usb 2-1.3: new high-speed USB device number 9 using ehci_hcd ...which I know is the ...
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61 views

Linux directory becoming a clear plain text file

Did anyone encounter this before? I have a directory called opt which is working previously. Last few days ago, i tried to expand LVM size by using off-line expand. It show success but with some error ...
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25 views

Are Extended Attributes Indexed?

Are desktop search applications like Beagle or Tracker able to index extended attributes like they do with the other file's attributes? If so, that means that a user can define this extended ...
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33 views

Mount UMSDOS in Windows

I have a directory that has --LINUX-.--- files in it, from when it used to be mounted in a Linux system as UMSDOS. Is there a driver that allows for mounting this directory in Windows so I can see ...
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23 views

Linux - How to change default application for text files with custom extensions?

I do some creative writing and use PyRoom for most of my drafts. I want to save my drafts with a custom extension story(i.e. Persuasion.story) and associate story extension to PyRoom. I want to, ...
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244 views

How to repair SD card that was unplugged during formatting?

I tried to format my SD card on my Windows computer but unfortunately I pulled it out during the process. Now it can't be recognized. I tried to wipe it using disk utility on Mac OS X but after it's ...
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43 views

Two files with same path and name - corrupted file system?

My computer is running windows XP 32 bit. I am using the following script to download the contents of a website to my hard drive, which is formatted as NTFS. wget-1.10.2.exe -r -x -p -nc -c -e ...
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169 views

Contiguous physical allocation of a set of files in linux filesystem (ext4)

I have a set of files that I wish to be allocated contiguously in the filesystem. I will be accessing all these files sequentially in a single read one after the other and I want to optimize reading ...
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105 views

What would cause an .exe to vanish without a trace?

I have a few computers. One computer, at home, one day suddenly had its pgbouncer.exe vanish. The antivirus didn't have it in its virus chest [avast]. I couldn't find the bgbouncer anywhere. All the ...
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26 views

What's the purpose of the Linux filesystem checkers' “interactive mode”?

Linux's fsck disk-repair tool often runs in an "interactive mode" by default. This means that, if it finds problems, it may ask me questions. But these questions tend to assume that I am a filesystem ...
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108 views

lvm and df inconsistent on amount of free space due to swap partition in middle?

I recently did a fresh install of Fedora19 over Fedora17 on a system that is dual booted with Win7. Everything is working properly but what really confuses me is that lvm and df are inconsistent with ...
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193 views

Geany cannot save files in Desktop Folder

Since many years, I always used Geany IDE for code of all kind on either Windows or Linux and been very statisfied. But then, I decided to use a more recent version and a strange issue appeared in ...
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142 views

Is it possible to delete unused media from the file system in Django, systematically?

I have a django project in which the admins are able to upload media. As items sell, they are deleted from the site, thus removing their entry in the MySQL database. The images associated with the ...
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108 views

Which network file systems do not implement locking correctly?

As a common cause for file corruption, documentation often cites as cause "NFS that doesn't implement file-level locking correctly" or something similar, e.g., for SQLite: How to corrupt an SQLite ...
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231 views

How to use tunefs

Introduction: I'm planning a performance-oriented clean install of OS X (10.6) on my Mac and I've decided (among other things) to split the hard drive into multiple partitions. Two of them will be ...
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52 views

virtual filesystems appear to be limited on win32 build of Midnight Commander

I installed Midnight Commander 4.8.7 on my windows machine at work. 2 of the features that I would love to use are the virtual filesystems for zip files and ssh. But the only virtual filesystem that ...
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19 views

Reflecting changes to a file in a different location

I have five different folders which share a number of common data files between them. That is to say that the same data file may be present in more than one of the above mentioned folders. Each of ...
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174 views

Retaining usable permissions and ownership copying unix files to NTFS

I have an old solaris system with terabytes of data on it. Recently we got a new server and I went along with the recommendation of a windows server "because it was easy to manage". Someone copied ...
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459 views

File manager that uses tags/labels instead of folders for GNU/Linux

I love the way emails are organized in GMail. I have long wanted something similar for my local files. The ability to have one file located under multiple hierarchies is a great advantage, and links ...
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103 views

How can I tune my file system to be more resilient to data-loss?

Let's say I have a disk with a lot of partitions formatted with many different file systems. I very rarely write data to it but I very often read data from it. Now I'd just want to know what I can ...
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67 views

OS X Lion - cannot run spotlight, mail, iCal etc

Whenever I try to run Mail or iCal I get the following error: Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000002, 0x0000000000000000 Application Specific Information: ...
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73 views

fsck did not recover all files - anything else to try or fresh install?

yesterday a server of mine (debian) went into read-only mode because of problems with the main device (ext3). I contacted the hosting support and the guy told me to boot into rescue and do a fsck on ...
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98 views

Linux mount part of filesystem as template

Here's what I'd like to do: I have some directories that I need to have separate copies of, but these directories are 2+ GB so simply copying the directory several times seems inefficient. 90% of ...
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151 views

Which filesystems support hard links (rsync) to backup a Mac?

I want to make a rsync-style hard-link backup from Mac on an external hard drive, but I cannot decide for a file system. It should be (preferably natively) readable from other operating systems. ...
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158 views

How do I search/replace symbolic links?

I've been having this issue for a long time, and I don't want to reinstall the whole system, yet. Now there's an app that runs on Java, and it doesn't even open. The logs says some cocoa files were ...