Hacker News with Generative AI: File Systems

Linus Torvalds Expresses His Hatred for Case-Insensitive File-Systems (phoronix.com)
Linus Torvalds is sharing some of his classic and straight-to-the-point wisdom today over file-systems with case-folding / case-insensitive file and folder support.

Operating Systems, Linux, File Systems

12 points by Bender 7 hours ago | 9 comments

Linus Torvalds Expresses His Hatred for Case-Insensitive File-Systems (phoronix.com)
Linus Torvalds is sharing some of his classic and straight-to-the-point wisdom today over file-systems with case-folding / case-insensitive file and folder support.

Operating Systems, Linus Torvalds, File Systems

13 points by coobird 18 hours ago | 2 comments

Linux Might Drop the Apple HFS / HFS+ File-System Kernel Driver Support (phoronix.com)
There's the possibility raised that the mainline Linux kernel might remove its file-system kernel drivers for Apple HFS and HFS+ this year.

Linux, Operating Systems, File Systems, Apple

10 points by bradac56 7 days ago | 0 comments

Linux Might Drop the Apple HFS / HFS+ File-System Kernel Driver Support (phoronix.com)
There's the possibility raised that the mainline Linux kernel might remove its file-system kernel drivers for Apple HFS and HFS+ this year.

Linux, Operating Systems, File Systems, Apple

7 points by Bender 11 days ago | 0 comments

A brief history of Mac native file systems (eclecticlight.co)
The first file system for Macintosh computers wasn’t HFS+ or even its predecessor HFS, but Macintosh File System, MFS.

Macintosh, Operating Systems, History, File Systems

8 points by ingve 14 days ago | 1 comments

The order of files in your ext4 filesystem does not matter (thewisenerd.com)

File Systems, Linux, Operating Systems, Software

65 points by thewisenerd 20 days ago | 61 comments

The FAT12 File Truncation Bug (brutman.com)
A few weeks ago I was doing some research on the FAT12 and FAT16 filesystems in an attempt to improve my NetDrive code, and I found a bug that can lead to a perfectly valid file being truncated when you move from DOS 2.x to later versions of DOS.

File Systems, Operating Systems, DOS, Programming, Bugs

5 points by todsacerdoti 21 days ago | 0 comments

Microsoft is testing ReFS for new Windows 11 installs (xda-developers.com)

Microsoft, Windows 11, File Systems

29 points by thecosmicfrog 21 days ago | 5 comments

FUSE File-Systems to Support Much Longer Filenames with Linux 6.15 (phoronix.com)

Linux, File Systems, Operating Systems, Kernel, Software

6 points by LinuxBender 25 days ago | 0 comments

FSKit: Implement a file system that runs in user space (apple.com)

Operating Systems, Software, User Space, File Systems, Programming

41 points by ingve 25 days ago | 6 comments

Escape Sequences in File Names (sigwait.org)
How to annoy folks who use busybox:

File Systems, Operating Systems, Programming, Security

3 points by henry_flower 27 days ago | 0 comments

EXT4 Better Hardened Against Maliciously-Fuzzed File-Systems (phoronix.com)

Security, Linux, Operating Systems, File Systems

4 points by doener 30 days ago | 1 comments

Btrfs Adding Fast/Realtime ZSTD Compression and Other Performance Optimizations (phoronix.com)
David Sterba of SUSE sent in all of the Btrfs file-system updates today for the now-open Linux 6.15 kernel merge window.

Linux Kernel, File Systems, Performance Optimization, Btrfs

17 points by todsacerdoti 32 days ago | 2 comments

Understanding the FAT File System (8dcc.github.io)
The FAT file system was originally developed by Microsoft for the MS-DOS operating system. I have been working on a FAT parsing tool for some days, and I wanted to explain some of the things I have learned.

File Systems, Operating Systems, Programming, Technical Explanations

5 points by 8dcc 34 days ago | 0 comments

Fsync() after open() is an elaborate no-op (despairlabs.com)
I have spent the last couple of years of my life trying to make sense of fsync() and bringing OpenZFS up to code. I’ve read a lot of horror stories about this apparently-simple syscall in that time, usually written by people who tried very hard to get it right but ended up losing data in different ways. I hesitate to say I enjoy reading these things, because they usually start with some catastrophic data loss situation and that’s just miserably unfair.

Operating Systems, File Systems, Programming, Linux

8 points by todsacerdoti 43 days ago | 2 comments

Time Trouble (os2museum.com)
Last Friday I had a moment of panic. While investigating why different run-time libraries might interpret file timestamps differently, I noticed that even Windows doesn’t always agree with itself. When was dos4gw.exe last modified, at 10:14 PM or 9:14 PM?

Operating Systems, File Systems, Software Development

21 points by userbinator 47 days ago | 0 comments

50 years in filesystems: 1974 – Die wunderbare Welt von Isotopp (koehntopp.info)
Progress is sometimes hard to see, especially when you have been part of it or otherwise lived through it. Often, it is easier to see if you compare modern educational material, and the problems discussed with older material. And then look for the research papers and sources that fueled the change.

File Systems, History, Technology, Computer Science

3 points by rodrigo975 50 days ago | 0 comments

How fast can you open 1000 files? (lemire.me)
Jarred Sumner, the main author of the Bun JavaScript engine, commented a few days ago on X that opening many files on macOS could be slow due to thread contention: “your $5,000 computer is only capable of opening 1 file at a time”.

Performance, macOS, JavaScript, Programming, File Systems

5 points by rrampage 54 days ago | 1 comments

3FS – a parallel file system from DeepSeek (twitter.com)
Something went wrong, but don’t fret — let’s give it another shot.

File Systems, Parallel Computing, DeepSeek

18 points by k_sze 57 days ago | 0 comments

Hyperspace (hypercritical.co)
My interest in file systems started when I discovered how type and creator codes1 and resource forks contributed to the fantastic user interface on my original Macintosh in 1984.

File Systems, Macintosh, History, User Interface, Operating Systems

849 points by tobr 60 days ago | 456 comments

Understanding Surrogate Pairs: Why Some Windows Filenames Can't Be Read (zaferbalkan.com)
This time I am going to write about some odd behavior by Windows. The behavior is by design and there is no obvious security impact. Therefore, this article is written just for the sake of sharing some geeky content.

Windows, File Systems, Programming, Technical Details

85 points by feldrim 61 days ago | 62 comments

SystemV filesystem being removed from the Linux kernel (phoronix.com)
The SystemV file-system that implements Xenix FS, SystemV/386 FS, and Coherent FS is set to be removed from the Linux kernel.

Linux Kernel, Operating Systems, File Systems

10 points by todsacerdoti 63 days ago | 0 comments

Walking with filesystems: Go's fs.FS interface (bitfieldconsulting.com)
The new io/fs package introduced in Go 1.16 gives us a powerful new way of working with filesystems: that is, trees of files. In fact, the fs.FS interface can be used with more than just files: it abstracts the idea of a path-value map.

Go, Programming Languages, File Systems, Interfaces

4 points by chautumn 71 days ago | 1 comments

Bcachefs Freezes Its On-Disk Format with Future Updates Optional (phoronix.com)
The latest round of Bcachefs file-system fixes have been submitted today for the in-development Linux 6.14 kernel.

Linux, File Systems, Open Source

8 points by voxadam 72 days ago | 0 comments

Why writes to disk generally wind up in your OS's disk read cache (utoronto.ca)
Recently, someone was surprised to find out that ZFS puts disk writes in its version of a disk (read) cache, the ARC ('Adaptive Replacement Cache'). In fact this is quite common, as almost every operating system and filesystem puts ordinary writes to disk into their disk (read) cache.

Operating Systems, File Systems, Disk Caching

5 points by ingve 81 days ago | 0 comments

Show HN: Plik – a tiny FUSE filesystem with compression and deduplication (sytes.net)
File system in user space (FUSE) with compression and deduplication. Written in a single C file (1K LOC). Uses OpenSSL for hashing, zlib for compression and SQLite for data storage.

Operating Systems, File Systems, Compression, Deduplication

5 points by zeymejbdv 88 days ago | 0 comments

TMSU: Command-line tool for applying tags and viewing virtual tagged filesystem (tmsu.org)
TMSU was born out of frustration with the hierarchical nature of filesystems

File Systems, Software, Productivity

108 points by walterbell 93 days ago | 47 comments

Migrating Away from Bcachefs (sesse.net)
Pretty much exactly a year ago, I posted about how I was trying out this bcachefs thing, being cautiously optimistic (but reminding you to keep backups). Now I'm going the other way; I've converted my last bcachefs filesystem to XFS, and I don't intend to look at it again in the near future.

Linux, File Systems, Storage, Operating Systems

4 points by amaccuish 94 days ago | 0 comments

Migrating Away from Bcachefs (sesse.net)
Pretty much exactly a year ago, I posted about how I was trying out this bcachefs thing, being cautiously optimistic (but reminding you to keep backups). Now I'm going the other way; I've converted my last bcachefs filesystem to XFS, and I don't intend to look at it again in the near future.