this post was submitted on 08 Aug 2024
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Linux

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From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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I want to learn more about file systems from the practical point of view so I know what to expect, how to approach them and what experience positive or negative you had / have.

I found this wikipedia's comparison but I want your hands-on views.

For now my mental list is

  • NTFS - for some reason TVs on USB love these and also Windows + Linux can read and write this
  • Ext4 - solid fs with journaling but Linux specific
  • Btrfs - some modern fs with snapshot capability, Linux specific
  • xfs - servers really like these as they are performant, Linux specific
  • FAT32 - limited but recognizable everywhere
  • exFAT - like FAT32 but less recognizable and less limited
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[–] rotopenguin@infosec.pub 7 points 3 months ago* (last edited 3 months ago)

ExFAT is the LCD filesystem for flash sticks. FAT32 is the filesystem that you have to use for devices designed back when Microsoft was awful about Exfat licensing.

Everywhere else, Btrfs. If Oracle didn't poison-pill ZFS licensing and it was common on Linux, I would be using that instead. Basically, taking it on faith that a drive didn't fuck up your data is crazy. The most basic responsibility for a filesystem should be ensuring that "the files come out exactly the same as when they went in".