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.
3,168
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Grant user access to create snapshots in btrfs
I am trying to allow my backup program to take a snapshot of my filesystem. The goal is to create a snapshot for the duration of the backup to ensure a consistent view then the snapshot can be deleted....
- 1,394
-3
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1
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35
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Backing up Google Photos collection to an external microSDXC card (with a exFAT filesystem)
SWIM has a Motorola moto e5 play with Android 8 as the OS. This individual wants to backup their entire photo (& video) collection stored on Google Photos, and move it entirely onto a 128GB ...
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20
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WinFSP and SSHFS Multi-layer SSH issue
So I am trying to use WinFSP and SSHFS on Windows 11 to get a local copy of a remote system. I have successfully gotten the file explorer tool "Map Network Drive".
I use: \\sshfs.kr\'address'...
Luminous_
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2
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42
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Does the events log have a record of when a file was created and permanently deleted?
I permanently deleted a file from my computer. Although I have the data in a later version of the file, I now realize I needed the timestamp on that file to calculate how long it took to generate the ...
- 588
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1
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28
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Swapping partitions in openbsd
After a regular openbsd installation I have this partition scheme:
# df -h
Filesystem Size Used Avail Capacity Mounted on
/dev/sd0a 986M 111M 826M 12% /
/dev/sd0k 46.4G ...
- 121
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1
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18
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Is it guaranteed that a file descriptor will be created when a process accesses a file? Specifically in /proc/pid/fd
I am creating an ebpf program that has a tracepoint on the syscall read().
The purpose of the program is to count how many times a file is read.
My current method to trace this is as follows:
When ...
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2
votes
1
answer
50
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How to name files to easily insert something in the middle?
I have a directory of files that are consequent scenes of a complete video.
└── 01-feat
├── 00-home-scroll.mp4
├── 01-page-home.mp4
├── 02-page-about.mp4
├── 03-page-contact.mp4
├──...
- 245
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33
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Numerous world-writable Directories in /proc/
I have searched for world-writable files and directories using the find / -perm -2 ! -type l -ls command on a Linux Mint system and have found a very large amount of world-writable files under /proc/ ...
- 101
13
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4
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3k
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Why do bigger clusters yield less capacity?
I was playing around with a thumb drive and I noticed a counter-intuitive trend.
The bigger I make the cluster size (allocation unit size in windows, block size in linux), the less capacity gets ...
- 915
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1
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341
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How to set file permission for multiple users in linux
I have a file format.sh in linux os.
There are five users a, b, c, d & e.
How can I set the file permission for different users:
a -> Read, Write & Execute
b -> Read & Execute
c -&...
- 776
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19
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How can I setup RPC using a file system to sync and transfer data instead of a network?
I have two separate networks, and due to network security policies the only bridge between the two is a SMB network share.
How can I setup an RPC system (targeting Python but casting a wider net here) ...
- 422
1
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0
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31
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How does dependency uninstalls occur while uninstalling a software in OS?
I installed mono and using homebrew and its dependencies is installed with it as a prerequisite. After uninstalling the mono again I realized it does not uninstall dependencies it installed initially ...
- 45
2
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180
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Repairing partition table with wrong sector size messed by usb-adapter and with possible block errors
I have a 4TB WD hdd (with sector size of 512e/4096) that was first formatted as GPT/ext4 with an usb-sata enclosure/adapter on a Raspberry Pi 3. Apparently the load was too much for Rpi3, and ...
- 21
17
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7
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2k
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Configuring a system to persist deleted files
I'm building a new system with Linux installed for a specific purpose that involving a third party to interact with it. Apart from applying necessary firewall rules to isolate the machine from the ...
- 502
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1
answer
144
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How to read Linux text files in Windows system?
For example, I run the top command and store it to a file in Linux, after that I open that file in Windows it contains some gibberish. Here is the file viewed in Notepad++:
The option to convert to ...
- 11
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28
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How to instruct the linux kernel to resolve all symbolic links in a mounted directory relatively to another root?
I have mounted an ISO at /mnt. The ISO is android's system.img. At the root it has a folder etc that is linked to /system/etc:
lrw-r--r-- 1 root root 11 Dec 31 2008 etc -> /system/etc
But it ...
- 43
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1
answer
185
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How to mount .img file as read-only ext4, but give users read permissions to the whole fs?
I have a system.img android's image file that has ext4 filesystem in it.
I mount it as
sudo mount -o ro system.img /mnt
I have two questions:
Why do I need root access to mount the image file?
...
- 43
-2
votes
1
answer
52
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How Does Duplicating Files To Reduce Read Time On Disks Work?
i recently looked into game files of a Sega Dreamcast game called "Tokyo Bus Guide", and i found a odd thing, there were tons of duplicate files!
when i researched on it and an Quora Comment ...
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1
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60
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How to automatically format an SD card or a USB flash drive with one FAT32 partition that uses the entire storage space?
I have some SD cards with some existing partitions that I want to format to one FAT32 partition and I want to do it as automatically as possible. Best just using one command.
When I connect them their ...
- 131
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1
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40
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Nginx autoindex is blocking IO on listing files
I recently encountered this issue where,
I served a data path using auto-index, within it there is a directory with a LOT of files (I have a directory with 1228240 files on btrfs). Accessing an ...
- 157
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31
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Is recursive bind mounting possible in Linux, preferrably without extra tools?
Here is a test with both mount --bind and mount --rbind options, neither of which goes full-recursion:
$ tree
.
├── adir
│ ├── afile
│ └── bbind
└── bdir
├── abind
└── bfile
$ sudo mount -...
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12
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Windows get error UNMOUNTABLE_BOOT_VOLUME after reinstal Fedora Linux
I recently reinstalled Linux (Fedora).
I mistakenly formatted the volume with efi. Naturally, I lost access to Windows boot.
Firstly, I booted into a flash drive and tried to restore the bootloader ...
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1
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0
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119
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How to repair a XFS filesystem with a dirty log?
I had a server crash while its RAID array was running in a degraded state and now the XFS file system is corrupted. I have read up on how to repair the filesystem but most things I have tried have ...
- 11
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0
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478
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How do I mount an f2fs partitioned SD card on Windows?
Similar to this question, I tried mounting my SD card using wsl. First I installed wsl:
wsl --install
This installed ubuntu, and after a restart I ran wsl and executed the following:
sudo apt update
...
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0
answers
16
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Linux fs permissions issue
I have a folder like:
/home/<username>/storage/apps/<name>/f/<filename>
all folders and files under "storage" directory has owner: 1000:1000
I'm running by binary which ...
- 1
0
votes
1
answer
52
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Does the batch command "ren" cause write operations on disk?
Problem statement
We are using a batch-script, part of which is using the ren command to rename a file. This script is ran once per second, possibly even at a higher frequency than that in the future.
...
- 103
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40
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Why are not all my files included when I gzip a directory?
I know this is a question that has been asked before, for example here Recursively count all the files in a directory,
but this is driving me crazy. Let me explain:
I have a directory called "...
- 101
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1
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137
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How does Logical Cluster Number to LBA translation happen in NTFS?
I'm reading about NTFS, and I found out that NTFS uses LCN (Logical Cluster Number) addresses for files. The information about data blocks are stored in the FCB of the file which is located in MFT.
As ...
5
votes
2
answers
654
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When upgrading from Win10 Home to Pro will any files/apps/user-folders/environment-vars/Win10-Settings be deleted or modified in anyway?
Aside from the new features being added and minor changes here and there, will any files/apps/user-folders/environment-vars/Win10-Settings be deleted or modified in anyway?
I don't think it will based ...
- 53
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22
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Noticed very large space utilisation in linux LVs, how to find which file or what is responsible here?
I have two disks in my server with a LVs created and issue is on the one mounted on /.
I am aware of using find and sort to output the largest for some given number of lines.
like:
find / -type f -...
- 1
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0
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74
views
Occasional HDD unmounted by systemd after kernel errors
The problem I'm having is that occasionally (with varying frequency) my HDD will randomly stop working (I hear the sound similar to when you unplug a USB drive). After rebooting everything is as it ...
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2
answers
107
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What happens if I dont resize filesystem after increasing storage
My question is built on top of this post:
why df vs lsblk command have different results?
The command, df and lsblk, yielded different result since I increased the storage. From the above post, it ...
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0
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48
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Does copying many files in the same directory on an SSD result in increased wear of the blocks that store the concerned filesystem area?
Assume several 1000's of files are copied in the same directory on an SSD. In such cases, the concerned part of the filesystem area must be updated after each newly created file, and it is highly ...
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3
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1
answer
47
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How to shorten Dropbox path on a business Dropbox plan shared by other co-workers?
I'm a member of a business Dropbox plan along with colleagues. I want to shorten the directory structure for my machine only. Can anyone recommend a way to map a subdirectory as a drive or just force ...
0
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1
answer
55
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My folders turned into files on my FAT32 usb
I have some very important archives in folders on my USB. I needed to use a program on a computer in my school because i did not have it in my laptop, but when i plugged and checked my USB in the ...
0
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1
answer
234
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How to delete a line based on a regex string in Powershell?
I want to validate if the line above a certain line is there, then ok. if else, then delete that line and remove the empty space ? Can this be done in powershell? please help
If before all lines ...
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0
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100
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Does anyone have a way of Exporting File 'Creation Date' and 'Modified Date' in order to restore this data onto files from a backup
I am able to get the data I want using PowerShell:
gci -path .\ -recurse | sort name | select name, LastWriteTime, creationtime
The issue here is, I have an online backup solution. When you restore ...
- 21
1
vote
1
answer
305
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How to add lines above and below a certain line in Powershell based on regex pattern?
03,201779,,01354,73923309,,,TEST2,7962753,,,0343,5087632,,/#end of line
04,399,777873,,,,text234,,,,/
33,TEST1,,,0343,,93493,,,343,,,,TEST3,,,,,,/
37,TEST37,text
49,24605597,6,343,343,343,,,3434,,,/
...
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How to combine 64 gb SD card with Nvidia-TX2 developer kits internal 32 gb storage
I must say that I'm still in the learning process of using Linux and Linux-4-Tegra. I have filled the internal 32 gigs of storage my Nvidia_TX2 dev kit has, and trying to merge 64 gigs SD card with it....
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1
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1
answer
46
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A virtual folder/index of folders in windows 10?
I have a folder with lots of folders inside, each of these folders have some folders which finally have files in them. See example below (the number of folders, subfolders in folders or files in ...
- 29
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3
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113
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What's the motivation behind limiting the file system block size?
The file system defines the block as basic allocation unit. Both the upper and lower limits specified on behalf of operating system. For example, Linux kernel requires the file system block size to be ...
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0
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442
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I can't chattr to /etc/resolv.conf
I can't change use chattr here. It's not a symbolic link. Why can't I change the attribute?
sudo chattr -i /etc/resolv.conf
chattr: Operation not supported while reading flags on /etc/resolv.conf
...
0
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0
answers
42
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Corrupted Drives While Copying Large Files Between LUKS Partitions
I'm currently in the process of backing up a few terrabytes of files from one drive to another. (both LUKS encrypted HDDs)
Unfortunately, after some time I always end up with readonly filesystem ...
- 131
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31
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What is the real Windows root directory? Is there a tool for viewing it? [duplicate]
I've seen paths like \Device\HarddiskVolume2 that apparently means the C:\ drive. I also recall seeing something online where it said that \ was the real windows root. Is this true? If so, is there a ...
1
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1
answer
56
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Is it possible to create a "virtual" file on disk that acts like a "view" into the combined contents of 2 or more "real" files?
Imagine I have 2 text files:
a.txt
b.txt
Is there a way to create a third "virtual" file that when opened, shows the contents of both files a and b in a contiguous manner as if they were a ...
- 113
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0
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146
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Slow hardware RAID0 write performance with 26 drives
I need a storage server with a total disk space of at least 400TB and write speed (preferably) well above 2GB/s for a scientific experiment which will transfer files of the size about 10GB via a ...
- 123
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1
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308
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lvresize fails: mount: /var: not mounted. Cannot proceed with mounted filesystem
I'm trying to resize the /var partition on debian 11.6.
FYI:
(I replaced the true volume group name with "xxx")
# lsblk
NAME MAJ:MIN RM SIZE RO
TYPE MOUNTPOINT sda ...
- 302
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0
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87
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"System can not find the path specified" Unity 2021.3.16f1
I have been trying to get into Unity but an error saying
"System can not find the path specified"
happens when I try to open a project.
.
I'm using Unity version 2021.3.16f1 and I am ...
28
votes
2
answers
7k
views
Is it safe to delete a file that is reportedly bigger than it should be
After calling unrar on a RAR archive on my 1 TB NTFS drive, I am left with a file, that reportedly has a size of 86T.
Is it safe to delete such file? What is the best way to safely get rid of this ...
- 391
-1
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3
answers
52
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Is it possible to prevent files on a usb drive from being searched on any computer?
I have searched, but all methods that I found need to be done on computers. I have a usb drive, and I may use it on different computers. It's impossible to set "Indexing Option" on every ...
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