btrfs: Improve fstab mount options during a btrfs install#172
Open
anaximeno wants to merge 2 commits intolinuxmint:masterfrom
Open
btrfs: Improve fstab mount options during a btrfs install#172anaximeno wants to merge 2 commits intolinuxmint:masterfrom
anaximeno wants to merge 2 commits intolinuxmint:masterfrom
Conversation
emanuc
reviewed
Apr 16, 2026
No need to explicitly set discard=async in fstab, as it is the default for kernel versions ≥ 6.2 and is automatically enabled on SSD/NVMe devices. ref: https://btrfs.readthedocs.io/en/latest/ch-mount-options.html Thanks https://github.com/emanuc for the suggestion.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
I've improved the btrfs install to use compression by default (which reduces writes and uses less storage) and some other options that should be better for modern SSDs.
Used as a reference the fstab mounts in distros such as Fedora and CachyOS which use similar mount options for btrfs, and this reference on BTRFS mount options I found: https://wiki.tnonline.net/w/Btrfs/Mount_Options
Tested the installation with both a single root partition on btrfs and split root and home partion when both on btrfs and it worked well in both cases.