this post was submitted on 29 Sep 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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I don't like systemd at all, but a boot routine that allows to load the plain kernel instead of an image and maybe choose other init systems than systemd would be nice. This is how most other Unix-like systems work.
Starting the init system is the task of the root filesystem or initrd, with any boot loader. Systemd-boot happily boot into any init system just fine, just like any other bootloader that can boot Linux will boot into systemd just fine.
Systemd-boot boots kernel images (with efi-loader code embedded) and only offers a menu to pick which kernel file to load. What makes systemd-boot interesting is that it does nothing more than that: It does not read random filesystems, it does not implement random encryption things, does not parse image files and complex theme configuration, ... .