this post was submitted on 28 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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Between
btrfs filesystem usage /
andbtrfs filesystem du -s /
there's nearly 11GiB difference for used space. ~~I have checkedbtrfs du -hs <path/to/subvolume>
for all subvolume in the filesystem, and total seems to be 72 GiB, hence the confusion. Still I don't know if I'm using the tools properly or something else is at fault here.~~To correct myself, 11GiB is additional space used by snapshot probably ~~used space difference between
btrfs fi usage
andbtrfs fi du -s /
is because of diff between snapshot and parent volume (didn't consider that while adding all used GiB of subvolumes)~~. Sobtrfs filesystem usage
works well to check used/free space.edit: fix incorrect args; additional space is not diff