this post was submitted on 05 Mar 2024
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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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I keep / and /home on a btrfs subvolumes, so I do not have to think about their sizes and also can do snapshots.
How do btrfs snapshots work?
I use borg to take snapshots from / and /home because I can be selective (it has include and exclude patterns, like rsync). Also because it does deduplication (at file and chunk level too, saves a ton of space) and compression. And of course a big factor is that I can keep the backups somewhere else.
I've looked into zfs snapshots but they seem really limited in comparison. Good for recovering accidental deletes or changes if you catch on soon enough, but not very useful otherwise.