this post was submitted on 29 Jun 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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Just ran into this exact problem this morning which was incredibly frustrating. Performed a routine system update, and I'm pretty sure I had a kernel panic (all input was non responsive, couldn't even switch to a tty) in the middle of pacman's upgrade phase.
While I was able to chroot into my install and reinstall the kernel, half of my system's packages were left in an inconsistent state so I still couldn't properly boot - and so I just nuked my root subvolume and reinstalled Arch (I suspect I could've somehow got the packages reinstalled if I wrangled for a while with pacman but it was just easier to reinstall at this point).
Atomic distros like Bazzite are designed to prevent that exact situation I ran into, unfortunately I just haven't had enough time or energy to try to make my own custom image that has what I need in it (got kind of close with NixOS but that had its own issues), otherwise I'd probably be running that.
Another unsung nicety related to this one is that you can fully update your system but only start using it once you reboot. Too many times I updated the kernel on Arch only to find everything stopped working until I rebooted, hence why routine updates can just be done automatically with no issues to the user.