this post was submitted on 07 Dec 2023
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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 use f2fs on my Raspberry Pis, it's designed for flash storage and appears to have much better performance than ext4 on the same device. I'm not sure whether it's suitable for SSDs, or just SD cards and USB (these devices are optimised for FAT and f2fs utilises that optimisation). When I tried to use f2fs on a proper laptop it was too early and the distro didn't support booting from it. I assume that has changed now.
As for the others, I usually stick with ext4 as I've never seen a compelling reason not to.
Interesting. f2fs supports file-based encryption and compression. It is designed for flash and is used for many smartphones.
What I missed mentioning is it does wear-levelling so as its name suggests it is "flash friendly" and stops SD cards wearing out so quickly.
I don’t believe this is true. F2FS is still meant for use on devices with a FTL (flash transition layer) meaning that the device is doing wear leveling itself and a filesystem doing it twice is redundant and counter-productive. The flash-friendly part is referring to other filesystem features (there are many)
I bow to your superior knowledge. It definitely doesn't wear out SD cards as quickly though, but that might be due to other factors not wear levelling.