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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Tar encounters “Cannot open: Not a directory” while compressing

I am using fakeroot v1.12.4 for packaging and extraction on RHEL-6.4. I have two different servers where I am compressing files using tar v1.23. Compression is failing on one server with this error: ...
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688 views

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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884 views

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

I'm deleting a Python installation folder (12000 files, 256 MB) from a USB flash drive, using Windows. It is currently expected to take 40 minutes. Why? I thought it would be enough to change a ...
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612 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 lowerdir=/home/student,upperdir=/home/....
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241 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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38 views

sdcard performance bottleneck

I have loaded my 4 GB FAT32 sdcard almost entirely with mp3 files. Now, I cannot remove none of them because "discovering items" never ends. Even command line tools last forever, including format e:. ...
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231 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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95 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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95 views

Copying files from ext4 to NTFS

I am trying to copy some files from an Ubuntu-based (ext4) external drive I have to my NTFS external drive. I opened up ext4 hard drive in Windows (it's read only) and started copy / pasting to NTFS. ...
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23 views

How can you modify the file size property or read more bytes than it indicates?

A friend of mine saved a file when her computer (a Mac) crashed. She assumed the file was saved and didn't worry about it too much, but now she saw the file size is 0 bytes and the file is empty for ...
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64 views

File system which supports trim command for shared SSD

I have a ~500GB SSD and I want to read/write on it from both of Windows and Linux. As far as I know, there are three choices for file system of shared drives: FAT32, NTFS and exFAT. FAT32: Not an ...
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104 views

Limit the size of the disk driver cache on Linux

I am running some experiments for comparing storage systems under load in Linux. To this end I want to force the file system to access the disk itself without caching too much data on RAM. How can I ...
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51 views

How to reduce I/O operations to a flash drive?

Background I often use different computers, and for that reason I like to aways keep with me a flash drive with my home directory, with my bash aliases and helpful functions, vimrc, Homebrew ...
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46 views

foobar2000: query if specific files exist in track's directory

In my library there are files like .lrc files (Lyrics) or album art files (various .jpg files) next to the music files: I am trying to create a autoplaylist where I want to list tracks which have a ...
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113 views

How to know bit-rot has occurred on ReFS?

I have read that ReFS has a built-in checksum mechanism. Automatic bit-rot repair seems to be done only when redundancy is used (Storage Space). If there is an ReFS volume without redundancy, I think ...
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64 views

Virtual filesystem on linux to translate contents (fuse?)

Is there some existing software to use a virtual filesystem to translate file contents? (read-only or read-write). It would be interesting to be able to generate a view on a code-base, for example. ...
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232 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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212 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: D:\prog\ai2\oving5\robotst\out\PRODUC~1\robots\out\...
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28 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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246 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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1k 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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424 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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65 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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157 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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687 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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160 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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338 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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416 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 example,...
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625 views

Not able to rename my file copied from Windows to Mac

I have copied a file from a windows system to my mac system. I want to rename this file but it is probably read only. How can I rename the file? I tried it through terminal also but got the error mv:...
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450 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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2k 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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508 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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70 views

How can I find out what's on a certain block in an HFS+ formatted drive?

I've a hard disk that has damaged blocks. I'm now copying it using ddrescue to an external drive. I've a file with the list of the damaged blocks, how can I find out which files are located in the ...
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77 views

How to read btrfs volumes on windows?

Basically the same asHow to read ext4 partitions on Windows ?. As I wanted to enjoy btrfs features such as transparent compression or auto defragmentation, I installed my Linux system on a btrfs ...
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26 views

How many inodes I need?

I'm running a Buildroot image that has not the -i flag for df. I have near 100 MB of free space, but when I try to add a nodejs module using npm install I get the error "no free space left". I guess ...
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15 views

naming files in a shared cloud file store

We are going to set up a shared cloud file store (using OwnCloud, but that probably doesn't matter it'd apply to DropBox or any shared network folder too). It will be used by a lot of people on a lot ...
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50 views

DiskView reports unallocated cluster, but WinHex reports cluster occupied by disk file - why?

I've recently been tinkering with deleting text files and seeing what information I can gather from the clusters that those files used to be on. However, I've hit something that's really made me ...
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960 views

How can I remount external drives after a power failure?

I know I can run a script that basically does this: sudo mount /dev/sda1 /media/my_flashdrive/. Is there a better way to do this on a small server with many external drives?
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38 views

Copy Dialog Box is not shown while copying

I seem to have a peculiar problem in Windows. So let's get straight to the point, A few days back i've attempted to copy a 10GB folder between my desktop and an external hard drive. When I copied the ...
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30 views

best way to copy content of NTFS partition to ext4 partition

I have a 263 GiB NTFS partition (with no free space) and want to copy all its files to a ext4 partition, that can't be larger than 294 GiB. I also need to copy NTFS Junctions as some kind of link. ...
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36 views

Is it possible to avoid using this terrible file browser in Windows 7?

When I'm saving or opening files in certain programs in Windows 7, such as when using Save for Web in Photoshop, or Open Animation in FCheck; I'm only able to use a ridiculously basic and inefficient ...
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275 views

Does any linux disk format support transparent folder compression? (Like NTFS)

I feel like I could use transparent, seamless folder compression. One way to achieve this, I think, is to compress normally, and mount an archive with Nautillus. AFAIK. you can run programs from the ...
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8 views

How to make a custom collection or grouping folders in windows?

I use windows 8.1. I have 10 folders in my root folder of a drive, namely folder1, folder2, folder3, folder4, folder5, folder6, folder7, folder8, folder9 and folder10. I want to group these folders ...
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129 views

Why does ZFS slow down making large files after 2.4 gig?

Zfs on linux, I'm making a large tar file, I'm watching it add to the file, and it goes very quickly, until it hits 2.4gig in size, then it just crawls, for hours. The same file on ext4 has no ...
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112 views

Why does FAT32 only use 28-bits for addressing?

I was reading Why is FAT32 limited to 8 TiB? The answer to that question was that 4 bits were reserved "for future use". What advantage is there in reserving these bits? Surely register size, ...
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25 views

GZIP file system code for Linux?

GZIP allows one to use file system codes. See page 7 of RFC 1952. What is (are?) the GZIP file system code(s) to use for Linux?
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199 views

BTRFS: too many missing devices, writeable mount is not allowed

Environment $ btrfs --version btrfs-progs v4.2.1 $ uname -a Linux [REDACTED] 4.2.1-040201-generic #201509211431 SMP Mon Sep 21 18:34:44 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux Problem Today the ...
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36 views

Is there a way to log all file modifications in Mac OS X?

Is there a way to log all the files that are being modified? The situation is that I want to investigate a suspicious program. So I start the logging, run the program and afterwards quit the logging ...
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152 views

Mount image of unknown filesystem

I have an image of a filesystem that I'm trying to mount. Unfortunately I have no idea what filesystem is in it. I'll show you what I have done so far. root@vagrant-ubuntu-trusty-64:/vagrant# file ...