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this post was submitted on 05 Aug 2023
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Linux
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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.
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Almost all data, aside from stuff like databases, benefits from filesystem-level compression, and almost every user benefits from having snapshots. Snapshots have saved my ass so many times, e.g. when I accidentally delete a file I shouldn't have, or when a program has overwritten a file it shouldn't have, or when Crusader Kings 3 corrupts my savegame.
As for bitrot, I frankly don't know if btrfs has an automatic mechanism of fixing rotten files from an external backup of the filesystem (created using
btrfs send
), but even if it doesn't it'll tell you what has rotted so you can restore the files manually.I use OpenSUSE Tumbleweed, and snapshots have been a lifesaver the 2-3 times when an update went bad (NVIDIA each time, go figure). A 30 second snapper rollback later and I'm back up and running.