this post was submitted on 23 Jul 2025
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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 hear ya there, but..
I be getting really confused when one config boots from /dev/sda, but when I have my backup drive attached (not the boot device), it boots from /dev/sdb
Hell I dunno, I probably confused the hell out of my laptop plus myself with my cutout mod reconfiguration, but it's happy to boot from almost anything now.
Almost...
Hey, at least I know how to restore to my previous state from backup via dd 👍
You probably just have multiple boot entries and some are higher priority, so if you plug in a drive it's boot config is higher in the boot order and since it is available it'll boot that.
Just run
You can see all of the entries and their boot order.