230
What's with all these hip filesystems and how are they different? (lm.paradisus.day)
submitted 1 year ago* (last edited 1 year ago) by rutrum@lm.paradisus.day to c/linux@lemmy.ml
105 comments fedilink hide all child comments

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
[-] mhz@lemm.ee 6 points 1 year ago* (last edited 1 year ago)

One EFI + one ROOT partition is what I do on both my laptop and desktop for years, /home is a subvolume to my root partition. This setup suits my needs as I don't have to worry about how big should my root or home (gaming) partition should be.

I use Arch on my desktop and Opensuse on my laptop. They both have options to set up subvolumes from their installer, Debian does not, and I'm not sure about other distros, but you can always set that up after installation, just make your home partition the last one (after the root partition) so you can easily delete it after and grow the root partition without much blocks relocation.

[-] danielquinn@lemmy.ca 4 points 1 year ago* (last edited 1 year ago)

I've never heard of sub volumes. What do they do for me? Why not just partition the disk or store everything on the one partition?

[-] mhz@lemm.ee 5 points 1 year ago

I like to think a subvolume is a directory on my filesystem that:

  • Acts as an independent filesystem.
  • Shares it's parent size (unless quotas are set in place)
  • Can be mounted/unmounted any time
  • Excluded from their parent partition's snapshots. (a /home subvolume is exluded from / snapshots).
  • Can be snapshot-ed independently.

This is by no mead a definition for BTRFS subvolume, but I hope you get the idea.

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

Linux

48746 readers
829 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
AgreeableLandscape@lemmy.ml
nooter692@lemmy.ml
MarcellusDrum@lemmy.ml
cypherpunks@lemmy.ml
cyclohexane@lemmy.ml
d3Xt3r@lemmy.nz