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this post was submitted on 17 Jul 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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The only difference between those two versions of
linuxis that the new one was built with a newer version of gcc. That doesn't really narrow the problem down, though. As far as I'm aware, emergency mode is caused by either a kernel panic or a failure to mount a needed filesystem. I'm leaning towards a corrupted kernel, since it doesn't sound like you changed your fstab or had any problem mounting/. I would runfsck -fon your boot partition, then try to re-download and reinstall the new package.If that doesn't work, then you can add
IgnorePkg = linux linux-headerstopacman.confso you can update without installing the broken package, until you resolve the underlying issue. Or your can install a different kernel altogether.As for preventing problems in the future, there's only so much you can do. Check archlinux.org before updating to see if anything requires manual intervention, and pay close attention while running pacman in case something goes wrong. You already seem to know the most important part, which is to keep a set of packages that are certain to work, so you can easily downgrade if a crash does happen.