this post was submitted on 25 Aug 2023
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Linux
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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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Always put your filesystems in an LVM volume (and in general, partition disks with LVM rather than partition tables)! You never know when you might need to combine multiple disks, make a snapshot, add redundancy, or transfer to another disk without unmounting. But it's very difficult to format a block device as LVM once you can't erase its contents.
Make your /boot partition at least 500MiB.
Leave at least 1GiB of free space at the beginning of every disk. You never know when you might need to add EFI and boot partitions to that disk. And again, it's very difficult to do after the fact.
Shouldn't be needed these days. With GPT/UEFI you can just make more partitions at the end of the disk if needed. Back in MBR days that wasn't possible, as BIOS often needed things to be at the start of the disk to be found.