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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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What's with all these hip filesystems and how are they different? (lm.paradisus.day)

submitted 11 months ago* (last edited 11 months ago) by rutrum@lm.paradisus.day to c/linux@lemmy.ml

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You know, ZFS, ButterFS (btrfs...its actually "better" right?), and I'm sure more.

I think I have ext4 on my home computer I installed ubuntu on 5 years ago. How does the choice of file system play a role? Is that old hat now? Surely something like ext4 has its place.

I see a lot of talk around filesystems but Ive never found a great resource that distiguishes them at a level that assumes I dont know much. Can anyone give some insight on how file systems work and why these new filesystems, that appear to be highlights and selling points in most distros, are better than older ones?

Edit: and since we are talking about filesystems, it might be nice to describe or mention how concepts like RAID or LUKS are related.

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[–] callyral@pawb.social 16 points 11 months ago (7 children)

related question, although i don't think it's big enough for a post of its own.

if i use btrfs subvolumes, does it mean that i can have one EFI partition and one root partition, and then subdivide the root partition using subvolumes? how would that work during the installation process? or is it done after installation?

[–] the_third@feddit.de 5 points 11 months ago (1 children)

if i use btrfs subvolumes, does it mean that i can have one EFI partition and one root partition, and then subdivide the root partition using subvolumes?

Yes.

how would that work during the installation process? or is it done after installation?

That depends on your distro. What do you plan to achieve with the separate subvolumes?

[–] callyral@pawb.social 3 points 11 months ago* (last edited 11 months ago)

I already have a partition layout in btrfs where I have a /home and a /root partition, since when I installed I didn't know about btrfs subvolumes. I use Void Linux and I think it's after installation, since I don't remeber having a subvolumes step during the installation.

I'll make sure to remind about btrfs subvolumes in case I reinstall. There's a btrfs program that has a subvolume argument, so I'm guessing that's what I could use.

usage: btrfs [global]  [...]  []

...
Command groups:
  subvolume         manage subvolumes: create, delete, list, etc

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