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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Why can't I delete a file in use on Windows? [duplicate]

On UN*X systems, I can rename or delete whatever files I want, even they are in use. However, on Windows, when a process is using a file, it cannot be renamed or deleted. If offline files are used, it ...
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Which file system best handles multiple, concurrent write sessions: GFS2, pNFS, FS-cache, XFS or OCFS2?

Which file system can handle more concurrent write sessions; let’s say 32 write sessions: GFS2 pNFS FS-cache XFS OCFS2 The file system has to handle 32 concurrent sessions with each session ...
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Filenames with illegal characters

I recently transferred a backup of my CD collection from a Windows server to a new NAS. When I mount it on my Linux desktop, I'm seeing a lot of directories and files where characters with accents and ...
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Is it possible to install Windows on unsupported filesystem?

Suppose that I want to write Windows driver for other filesystem (maybe my own?). Is it possible to install Windows on that? Eventual problems could come from just Windows installer or it could be ...
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Syncplicity: can only change timestamps temporarily

Following the answers from How can I change the timestamp on a file?, I tried setting the timestamp of a file by typing $(Get-Item zz).lastwritetime=$(Get-Date) in PowerShell and by typing touch zz ...
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How to Create Virtual Block Devices

I want to create multiple virtual block devices like /dev/sda and then use them to create an md device for test purpose. I have mounted my root filesystem on /dev/sda1 and don't have extra space to ...
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Find largest versions of picture files

Following a server hard drive crash and recovery I now have a directory with 3000 pictures without a proper name or directory structure. There are about 300 distinct pictures, the rest are resized ...
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33 views

How to identify and mount filesystem of partition type 63 - Unixware

How can I identify and mount the filesystem from a old Unix machine ? Using file to the dd image simply reports X86 boot block. Using testdisk and checking the bootblack I get multiple entries ...
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1answer
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Why is Windows able to rename a folder quicker than it is able to delete one?

In the work I do, I often have to rename and delete folders. Shift-deleting a folder goes pretty quickly - perhaps 10-20 seconds for 1-2GB, while renaming the same folder occurs instantly. My ...
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1answer
53 views

How to create USB flash “.bin” image in Linux without physical drive

I have some files under Linux, which I have to copy to multiple SD-cards under Windows periodically (not bootable, but with file permissions, filesystem ext3). Now the procedure is: I copy files to ...
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2answers
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What happens on the OS when the user changes the date/time? [closed]

I'm just curious about a question: let's say we have a folder containing some very important files (could be the System32 directory). We know that the filesystem stores some information about their ...
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Character set in Linux filesystem

I just installed some Arch Linux packages, which dumped this file onto my disk: /etc/ssl/certs/EBG_Elektronik_Sertifika_Hizmet_Sağlayıcısı.pem Note that the file name seems to contain Turkish ...
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Symbolic Links to a subfolder

Problem This is my directory structure F:\dir\lev1\lev2\lev3 Consider there are files at every level of this directory structure. I'd like to create a Symbolic Link in F:\dir to the directory ...
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143 views

No space left on device, but the partition only half full and inodes are available

I was running a Python process which creates a huge number of files under a single directory (I should have been smarter and bucketed them into multiple directories, but that's another story). After ...
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1answer
54 views

How do I reload windows without rebooting

I was wondering, is it possible to reload all the files in windows without rebooting the system to save time like when you install a new program and it asked you to reboot your PC, but instead I want ...
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2answers
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Linux Filesystem with either no discretionary access control (user/group permissions) or that can have it disabled

Is there a file system for linux that has no permissions? I have a folder that is shared between multiple applications and although they are all running in the same group, I am constantly having ...
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1answer
28 views

Transfer large amount of data in chunks

I need to copy data from one server to another however the only median we have is a small HDD. What is the best way to split up the data and merge it back on the other end without creating archives as ...
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200 views

Differences of aufs, unionfs and overlayfs from each other

I have to join two file systems, one read-only (squashfs) and one read-write (ext4). My plan is to mount the read-write filesystem over the read-only flesystem so it appears writable. When I make some ...
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can filling up a disk and then freeing up space cause filesystem problems a month later?

I had an incident happen not too long ago with a server running mysql. Someone had enabled slow query logging on the server but never bothered to implement a log rotation, so the log files slowly ...
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1answer
25 views

Folder named `xyz` appears under the name `Public Desktop` in Windows Explorer?

In Windows 8: I have a folder that is currently named 'unused' but the same behavior occurs with any name that I rename it to. The name appears correctly in CMD when I type dir but when I look for the ...
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1answer
312 views

Ubuntu/Mac Setup — Show Samba and Netatalk

I have setup Netatalk at my home for Time Machine backups, and I would also like for my samba shares to show up on my MacBook. Here is what I currently see: ...
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1answer
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Creation of 1.3 GB file takes only 1 second. How?

I have folder which contains over 200 files and has size of over 1.3 GB: I use Gizmo Drive software to create an .iso file from that folder. The interesting thing is it takes only 1 or 2 ...
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1answer
54 views

Actual File Size on Windows [duplicate]

I have a question related to what I'm currently testing/working on/trying to understand. I created a small text file with the following content abc.txt ABCDEF Now when I view File Properties I ...
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1answer
28 views

Are my disks waking up too often?

I have noticed a sequence of this messages in my logs: Oct 27 02:20:38 kernel: sd 0:0:0:0: [sda] Synchronizing SCSI cache Oct 27 02:20:38 kernel: sd 0:0:0:0: [sda] Stopping disk Oct 27 02:20:38 ...
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1answer
114 views

Recover data from a Samsung DVD recorder's hard drive

I have a Samsung DVD recorder: I want to recover data from its hard disk. I need to buy a SATA-to-USB adapter and connect the hard drive to power then to USB and mount it on my PC. I have done data ...
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Dropbox permissions issue, elementary OS

Using elementary OS Freya x64 on my laptop I wanted to install Dropbox now. I also use windows 8 on another partition, where dropbox was already installed and working. To not waste space I used this ...
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How to migrate a root filesystem to another partition from within running system?

I try to migrate a root filesystem from ext4 to another partition type (zfs) and started with a simple rsync -a --exclude=/boot --exclude=/mnt --exclude=/media --exclude=/tmp --exclude=[all zfs ...
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WAFL - Write Anywhere File Layout

Hi I'm looking for some information on how WAFL works , more specifically I need help in understanding the following parts. To make your task of answering simpler I've outlined a few questions. ...
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1answer
32 views

What is and how to open a .xsig file extension?

I have received a .xsig document, that I can read in plain text. Is there any way of visualize the document with an application?
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1answer
26 views

What's happening when you do 'cd //'? [duplicate]

This is just trivia really, but it's just got me wondering what's going on. I accidentally hit / instead of . today and got this: [andrew.morris@server ~]$ cd // [andrew.morris@server //]$ pwd / I ...
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Filesystem data replication like in torrent protocol

I'm searching solution that will allow me replicate files from master file system to slaves file systems on application layer. Replication will be done via WAN or LAN, when slave trying to ...
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OSX “._” prefixed file names

when i name a file with prefix "._" it just disappear, altrought, other "." beginning files are still visible what are "._" and how can i see them in finder? Note: i did enable to see files ...
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1answer
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Prevent a file/folder being invisible [duplicate]

Is there a way to prevent a file or folder being set invisible ? I am working on an infected machine (which I cannot disinfect) that constantly makes the files and folders in my usb stick invisible. I ...
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1answer
58 views

Linux: locking root filesystem to read-only

I have an industrial computer (read: no keyboard/mouse/monitor except during maintenance) which will control some machinery. The operating system will be Linux (I would prefer OpenSuSE, but it's not a ...
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4answers
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Access data from a linux partition inside an image without root privileges

I have a whole-drive image file containing a partition table and some partitions. I would like to list and read files from an ext2/ext3 partition inside this file. Using root priveleges, it is ...
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1answer
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Are 2 files of the same type with the same number of discrete properties the same size?

Suppose you have 2 uncompressed .RAW image files, each exactly 4096*4096 pixels in size, but one is purely 1 single color (say, #FF0000) and the other contains a segment from the Mona Lisa. The ...
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Can't read secondary drive; suspect file system damage; how to repair?

I have 2 hard drives in my PC. Drive D: is unreadable. I believe that the File System is damaged (NTFS). I tried a number of softwares but all of them recover file according to their types. I need the ...
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2answers
55 views

Linux: Should I resist temptation to delete files in /tmp?

I sometimes look at the /tmp directory with all those files taking up disk space, and think "maybe I should go in there and do something about it." On the other hand, in my 10+ years of Linux use, I ...
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2answers
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Do files occupy a different amount of space in NTFS and LUKS + ext4?

I have two volumes, one NTFS (15028048 14213120 51544), that corresponds to (1-K blocks, used, available), and the other is a LUKS + ext4 (14895184 13869752 245752). I checked the files inside ...
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1answer
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Ubuntu 12.04.5 LTS stuck at bootscreen on Virtual Box 4.3.10

I had a running Ubuntu 12.04 VM on a Windows 7 host with Virtual Box 4.3.10 - until yesterday. Somehow, my host OS crashed and with it the still running VB. Now, when I try to start the VM again, it ...
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0answers
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Show read-only files from SSD card on Mac OS X

I have photos on SSD card and I'm unable to view read-only files after copying the files to my computer. The photographer has used that read-only indicator to mark the taken photos to edit. Using: ...
2
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1answer
99 views

Unable to Create Files In Directory

There are lot of these kinds of questions on superuser, so I'll try and keep this quick by telling you what it's not: There is no application involved here. Just a user and a filesystem. I can login ...
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1answer
27 views

Which file attributes are stored in the directory entries and which in the inodes?

I want to do some deduplication of old files, replacing duplicates with hardlinks. To minimize loss of metadata, I want to set the directory entry attributes of each new hardlink to the attributes of ...
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1answer
20 views

How do i find where my apache2 is installed in my centos server?

What methods can I use to find where my apache2 is installed on my centos server? btw, i have cpanel installed. I want to edit my sites-available entries and point one of my domains to another ...
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1answer
24 views

CrashPlan don't cross filesystem boundaries

I have replaced my backuppc to CrashPlan Family. CrashPlan is very feature-full, but I can not force backup to do not cross filesystem boundaries, like rsync -x. It would be a killing feature, because ...
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1answer
60 views

External hard drive not showing files in it on Windows 8.1 after a while

I am having a weird problem. The issue is that after some time my hard drive data automatically gets disappear. Even if i unplug the USB cable of external hard drive windows still showing it connected ...
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How to remove directory with invalid name on running system root partition without third party software? [duplicate]

Somehow, most probably from one or another usb-born Linux, I got cute little directory named C: located on my C: NTFS partition, due to its peculiar name I can not operate on its directory tree as ...
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1answer
175 views

ext4 fs not recommended for SSD's? Alternative FS [closed]

I read ext4 journalling fs is not good enough for SSD's by some anonymous posts. while phornoix review shows JFS, not a known FS for average Desktop user is considered best for SSD. I believe JFS is ...
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260 views

chown - operation not permitted as root

I'm using ISPConfig + Apache2 on a Debian server. I created a user which is going to be used for a certain client folder in /var/www/clients. Whenever I run the command chown -R user123 client2 as ...
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Recover bad superblock after using Testdisk EXT4

I Have a problem with my NAS Hard disk. I tried to make a raid-1 array but now my drive is corrupted. After that I made a mistake with "testdisk" and I selected ext4 instead of ext3. Now it's ...