Fresh install btrfs on 24.04

[mr_raider]

I noticed that the following options are appended in fstab for a fresh 24.04 install by calamares using a btrfs filesystem on an SSD:

defaults,noatime autodefrag

Is online defrag now mature? I thought it was a no no...


Interestingly, MX Linux, based on Debian, uses these options:

noatime, compress=zstd:1

Is there any advantage to using compression by deafult?

[oshunluvr]

Generally, zstd:3 is considered better than 1, autodefrag is fine, space_cache=v2 is highly recommended.

Do a little research and see what fits your use-case.

[mr_raider]

Generally, zstd:3 is considered better than 1, autodefrag is fine, space_cache=v2 is highly recommended.

Do a little research and see what fits your use-case.

According to this:

https://unix.stackexchange.com/quest...space-cache-v2

space_cache=v2 is default now

[claydoh]

space_cache=v2 should be part of the 'defaults' options

Check what the actual full mount options are, using the mount command (with no arguments).

or mount -t btrfs