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ext2: mark as deprecated - kernel/git/torvalds/linux.git - Linux kernel source tree
(git.kernel.org)
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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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Yeah. I would not for example install ZFS to a laptop. It's just not great there, and it doesn't like things such as sudden power failure, and it uses kind of a lot of memory...
Meanwhile BTRFS provides me with snapshots and rollbacks that are a useful when I'm messing with the system. And subvolumes bring a lot of flexibility for containers and general management.
For sure. I would say if you run a distro like Arch, using it without cow filesystem and snapshots is not a good idea... You can even integrate snapshots with pacman and bootloader.
I've been running nixos for so long, that I don't really need snapshots. You can always boot to the previous state if needed.
If you write software and run tests against a database, I'd avoid having the docker volumes on btrfs pool. The performance is not great.