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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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tell me your experience using zfs/btrfs (programming.dev)

submitted 9 months ago by [email protected] to c/[email protected]

61 comments fedilink hide all child comments

cross-posted from: https://programming.dev/post/9319044

Hey,

I am planning to implement authenticated boot inspired from Pid Eins' blog. I'll be using pam mount for /home/user. I need to check integrity of all partitions.

I have been using luks+ext4 till now. I am ~~hesistant~~ hesitant to switch to zfs/btrfs, afraid I might fuck up. A while back I accidently purged '/' trying out timeshift which was my fault.

Should I use zfs/btrfs for /home/user? As for root, I'm considering luks+(zfs/btrfs) to be restorable to blank state.

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[–] [email protected] 3 points 9 months ago (1 children)

There is btrfs-check --repair to fix corruption

[–] [email protected] 4 points 9 months ago* (last edited 9 months ago) (1 children)

https://www.suse.com/support/kb/doc/?id=000018769

WARNING: Using '--repair' can further damage a filesystem instead of helping if it can't fix your particular issue.

Edit:

It is extremely important that you ensure a backup has been created before invoking '--repair'.

[–] [email protected] 4 points 9 months ago* (last edited 9 months ago)

That is a caveat with OS disk tools. Even partition resizing gives this warning, as does Windows checkdisk...something about unnessary disk checks ahould be avoided as they can create issues where none might have existed, so only run when you suspect a problem.

But as lemann pointed out in this thread btrfs scrub is less risky