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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 7 months ago by [email protected] to c/[email protected]

72 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] 2 points 7 months ago (1 children)

Most of the tools now should be setting nocow for virtual drives, performance these days isn't bad.

[–] [email protected] 1 points 7 months ago (1 children)

nodatacow is a hack and will disable any and all consistency mechanisms for that file's contents. Tools should not be setting nodatacow for virtual drives, certainly not by default.

[–] [email protected] 2 points 7 months ago* (last edited 7 months ago) (2 children)

Default libvirt behavior since 2020. Pretty sure some database tools turn it on too.

[–] [email protected] 1 points 7 months ago

Yikes.

[–] [email protected] 1 points 7 months ago

They do. Otherwise they run like Oracle when auditd is configured and running.