230
submitted 11 months ago* (last edited 11 months ago) by rutrum@lm.paradisus.day to c/linux@lemmy.ml

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.

you are viewing a single comment's thread
view the rest of the comments
[-] ReversalHatchery@beehaw.org 12 points 11 months ago* (last edited 11 months ago)

In case of ZFS and bcachefs, you also have native encryption, making LUKS obsolete.

I don't think that it makes LUKS obsolete. LUKS encrypts the entire partition, but ZFS (and BTRFS too as I know) only encrypt the data and some of the metadata, the rest is kept as it is.

https://openzfs.github.io/openzfs-docs/man/v2.2/8/zfs-load-key.8.html#Encryption

Data that is not encrypted can be modified from the outside (the checksums have to be updated of course), which can mean from a virus on a dual booted OS to an intruder/thief/whatever.
If you have read recently about the logofail attack, the same could happen with modifying the technical data of a filesystem, but it may be bad enough if they just swap the names of 2 of your snapshots if they just want to cause trouble.

But otherwise this is a good summary.

[-] lemann@lemmy.one 4 points 11 months ago

BTRFS has encryption now? Yay!! I have been wrapping it inside a LUKS partition for years at this point...

[-] KiranWells@pawb.social 1 points 11 months ago

They said bcachefs; I don't think BTRFS has it, at least not since I last checked.

this post was submitted on 07 Dec 2023
230 points (96.4% liked)

Linux

48073 readers
753 users here now

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.

Rules

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago
MODERATORS