Questions tagged [filesystems]

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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24 views

How to get hardware memory location of the Ethernet interface

When I type ifconfig eth1 I get this output: eth1 Link encap:Ethernet HWaddr 00:04:9F:05:3E:4A BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 ...
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Disabling/Unmounting uncommon filesystems on Ubuntu 18.04 LTS

I just started to implement the recommendations outlined in CIS Ubuntu Linux 18.04 LTS Benchmark document (check it out here) and one of the first recommendations it gives is disabling uncommon ...
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how to set up multiple computers full disk encryption?

I want to set up my company's laptops in a way that all files created on these laptops can only read by these laptops. If it is copy to a usb then that file is only readable when plug that USB in a ...
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1answer
49 views

How to copy a file system to a smaller device

As I used it to copy a 32 GB SD card (13 GiB used) to a 16 GB SD card, i share with you the process bellow (it was for a raspberry pi) : I have lost some times with /dev/loop0...
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How to open file with .rl0 extension? [closed]

I am working on a problem statement, but the dataset for it is in .rl0 format. I have never come across such a file type and am not able to open it. I tried opening it with notepad and VS code but ...
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How should I understand these Windows 10 filesystem feature-bugs?

During normal using of PC, resp. file system I noticed 2 faulty Windows behaviors: 1. In Save As dialog of any program deleted file is not recognized. Open Save As. Delete file. Try save file with ...
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1answer
42 views

Why does Windows scatter installed programs' files across the hard drive? [closed]

As someone who has to deal with reinstalling computers fairly frequently, I also have to deal with restoring programs after the reinstalls. Now my question is, why the hell does windows need to spread ...
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Will adding a file to a zip file rewrite the whole file?

If I have a large zip file and add a file into it, will Windows create a copy of the file and then delete the original, causing very large "write amplification", or will it just add to the file? (...
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Are all bootable flash-drives created equal?

I sometimes have a flash drive that is a bootable drive, and would like to use the drive for something else (erasing the files on it) but without losing the option to use it in the future. The simple ...
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1answer
23 views

Coun't not find this item error while copy files on windows

I did a backup of my Linux computer on an NTFS hard drive. When I try to delete or copy some directories in windows I have the following message: "Coun't not find this item" but with the explorer, I ...
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Give group write permission to newly created files inside chmod -R g+s folder

I have a folder and I have set GID on it like this: chmod -R g+s I also set r/w perms like this: chmod -R 2774 But the problem is that newly created files inside this folder do not keep 2774 ...
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How are individual files encrypted?

I think the process is called EFS and in most cases the encryption of the key used to encrypt the file by an asymmetric cipher but what I don't understand is how exactly the files are encrypted. Now ...
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CentOS8 overlayfs - operation not supported

The overlayfs kernel module is not working properly in CentOS8. It seems like a bug but maybe is due to improper usage. Is there any solution? CentOS8.1 uses 4.18.0-147.el8.x86_64 kernel. To ...
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Multiple password for macOS disk encryption, like on Linux

On Linux, you can add multiple passwords to an encrypted (LUKS) drive. Is this possible on the Mac on APFS?
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Cause of slowdown when saving many image files to external HD?

I am generating several million jpg images using a python script for a deep learning project. I am storing these on a 14TB hard drive on my Mac. The total size of the image folder containing the ...
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Under the “this pc” I cant find my c:\, yet it still exists

Under the "this pc" I can't find my c:\ yet it still exists. How can I make it show up under "this pc"? It shows up here, and it says that it's in the "this pc": When I go to "this pc" I can't find ...
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Why do mac and synology report different file sizes? [duplicate]

I have files on my MacBookPro that I copy into Synology. I have noticed that Finder and FileStation show different file size. I have attached a screenshot for both these. Finder on MacBookPro. And ...
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Would the same structures used in a disk based file system be used in a flash based file system

SSD's seem to have completely different properties compared to HDD's how do we still manage to use the same filesystem's like NTFS and FAT32 inspite of such difference in properties?
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Strange SD Card “File Allocation Table” issue

I have lots of IoT devices running linux off an SD card, and for some reason they've all recently stopped working! To get to the bottom of the issue, I tested these SD cards in Windows laptop. The ...
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How to rebuild an exfat filesystem from random 25Mb blocks

Got my ssd controller stopped working. No surprise, as I alaways ket it almost full. Fortunately, it turns out each physicall blocks is 25Mb large which means the data it continuous inside each chunk ...
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External HD shows wrong content [duplicate]

I have two external hard drives which show the wrong content. On each one of them I find content which belongs to the other and other files and folders are missing. I cannot access any file in any ...
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18 views

Manage directory ownership in gscfuse command?

I am creating an sftp server in GKE using atmoz/sftp Dockerfile. I am also using gscfuse to mount one Cloud Storage Bucket as the /home directory of the container. I am creating two sftp users user1 ...
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When I unplug USB, “aborted journal detected”

When I unplug a USB flash drive, my Debian system crashes, I get "Input/output error", because my system detects "aborted journal" and mounts root filesystem in read only. How can I fix this?
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linux files is hidden in different programs windows

I'm experiencing a very strange bug - Ubuntu 'files' is always opening as it's a different program. Here is an example: As you can see, 'Files' isn't showing in the files icon (the second one to the ...
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Is there a way to keep two directories (on two servers) in sync with each other, truly?

I have two servers in AWS that we are using to store a software packages codebase that is accessed by the web application/server. /var/www/vhosts/application-dua/content/ This same folder structure ...
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Make directories last modified time match contained files last modified time

I have Pop!_OS 19.10 and use the default file explorer. I used to run macOS and whenever I'd add a file to a folder, the folder's last modified time would update to show the date when I added a file. ...
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221 views

Recovery attempt from failed NAS: ecryptfs File Version [2] **RESOLVED**

I am attempting to recover data from a failed NAS device (Seagate BlackArmor 440) I have have recovered the files, determined that the encryption used is ecryptfs and deciphered how the NAS USB key ...
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2answers
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Is cluster size always enforced during communication with Hard Drive

My question is about the minimum data block size (cluster, number of sectors) that the OS use to communicate with the hard drive using ATA commands? I know that the physical sector size is 512 Bytes ...
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2answers
41 views

Consistent filesystem corruption

I'm running Debian 9 (Stretch), and recently I began to notice that on startup, my root filesystem / (mounted on a USB-attached SSD) began to show up as corrupted: [ 4.511127] sd 0:0:0:0: [sda] ...
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eMMC spare capacity calculation

I'm lead to believe that eMMC capacity is defined in the same way as other mass storage technologies, i.e. 32GB is 32,000,000,000 bytes. The accessible address range of this 32GB device is 0:57,671,...
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2answers
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How to Index My Destop

I keep a bunch of files on my dekstop...word files and writings I'm working on at the time. I would like to be able to search for a specific file that has some word written inside it...however, for ...
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3answers
49 views

Get the total size of all files of a given extension

I'm trying to get the total size of all the JPEGs in a particular folder, but no amount of combinations of options while piping to du seems to make this work: find -type f -iname "*.jpg" | du -sch ...
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Is there any way to crash Linux for vmcore debug when kernel find VFS busy inodes with some other FS module

I am working on one clustered FS , which is integrated with Linux and uses VFS layer of linux for fs posix operations. At times I see kernel reporting VFS busy inodes issue when the cluster fs goes ...
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1answer
46 views

How can I find and delete corrupt files on Linux?

It looks like one of my Btrfs drives had file corruption. I copied all the files I was able to copy to another drive and reformatted the Btrfs drive. Most of the files seem to be ok but some files ...
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51 views

Fix corrupted SD card filesystem using fsck [duplicate]

I'm trying to fix a corrupted sdcard vfat filesystem (used in an Android device) using fsck. The sdcard just stopped working one day (the file browser doesn't show it and it's not visible in Android ...
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1answer
35 views

Destination Folder Access Denied - You need permission to perform this action (Despite having Security/ Sharing Privileges)

I actually asked about this issue a few days ago and thought I found the answer, even linked the site that showed my 'solution' (before trying the solution) but when I tried it (giving my 'Opcon' user ...
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28 views

Windows 10 clean boot after wiping disk clean

I recently updated win 10 OS on my laptop which resulted in a crash. I tried several ways to solve it but in the end, i ended up wiping the entire disk clean. I used a live ubuntu cd to merge all ...
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Recover files with broken inode on NTFS

I already saved a broken hard drive using ddrescue to copy the entire drive to a save location. Now I got a lot of files recovered, but some video files are showing like this when doing ls on the ...
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Always permanently delete files from specific folder

On Windows 10 (pro 64bit), is there a way to modify a folder such that its contents are always removed permanently (and only for that folder. Other folders still go to the bin), instead of being moved ...
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1answer
48 views

My Apple APFS partition is entirely full, and now I can't delete anything anymore. How do I fix this?

APFS is a copy-on-write filesystem, which means that any modification including deletions require writing new metadata, not just changing existing metadata. The new metadata requires free space. At ...
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1answer
60 views

Undeletable directories on NTFS partition

I'm trying to delete two folders on a drive on an Ubuntu server which were created by Windows (drive previously mounted on Windows and their content is just garbage now). I've tried everything I can ...
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26 views

How to have the same file system on parrot security and Windows 10

I have parrot sec and windows 10 dual booted, and I use both of them very frequently. However, I find it troublesome to transfer my files back and forth the two operating system and wonder if there is ...
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1answer
75 views

Compressing Windows 10 system folders

When I was stuck with Windows XP I was able to compress all harddrive folders into WinRAR files. I don't know if my ability to do that had to do with less restrictions within XP or that I had ...
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1answer
62 views

The working of the mount command and the FAT12 filesystem

I was experimenting around with filesystems in linux. I want to understand a few issues. Here are the commands that I have used: truncate disk.img -s 1M mkfs.vfat -F12 -S512 -s1 disk.img #I have ...
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44 views

Windows 10 Creating and deleting directory in remote location (Netapp) in a loop fails after some iterations

Some of our tests programs create directory, writes some files there and deletes it. These tests started failing recently after we moved to Windows10 (from Windows7) The tests were in Java - ...
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Cannot enlarge a LUKS filesystem

I enlarged a LUKS partition from 2.7TB to 3.7TB with GParted. lsblk and fdisk -l now show the desired size, but df -h still shows 2.7TB, and I can only write as much to the disk. resize2fs and e2fsck ...
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1answer
29 views

Organising files to folders alphabetically

I have a folder with thousands of files witch open in a synth emulator. The files are so many that the emulator freezes for seconds when i try to browse which file to open. Id like to put all the ...
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1answer
50 views

Is a /dev/loop preferred for mounting file-as-filesystem?

I have been hacking around with files as filesystems, for things like encrypted volumes and the like. This tutorial uses losetup and a /dev/loopX device to facilitate the mount process. However, ...
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9 views

is it right to mix diff file system between kafka machines

we have kafka cluster with 3 machines each kafka machine use disk for DATA , and each disk is 20TB size the file system on the disk is ext4 now we want to add additional 5 kafka machines but to ...
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1answer
100 views

Making a specified FAT12 filesystem using mkfs command

I am currently doing some OS development on a Linux machine. In the process I want to create a FAT12 filesystem on a file (Eg. Disk.img). I use the mkfs command as follows: touch Disk.img truncate ...

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