this post was submitted on 28 Nov 2023
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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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As others have said, I also highly recommend physically separate drives. I have found both Linux and Windows affect each other sometimes especially when you're getting your bearings with dual booting.
For instance, after running Linux the clock in Windows will be wrong. And Windows will eat the Linux boot partition especially after feature packs (formerly called service packs), which come out about 1-2/year.
Just in case anyone stumbles in to this, there is a fix for the time issue:
https://itsfoss.com/wrong-time-dual-boot/
The better way is to fix Windows to use a sensible system time. https://wiki.archlinux.org/title/System_time#UTC_in_Microsoft_Windows
Damn, the Arch Wiki is even the best documentation for Windows!
Anecdotally I've been dual booting Windows 11/Linux on my laptop for a couple years and I've never had issues with Windows affecting the boot partition and I feel like this is much less common with EFI. You can even have a separate EFI partition for Linux and choose boot order from the BIOS.
I've always done partition based dual booting since I first started using Linux and the last time I remember having an issue with Windows fucking with boot setup was like early/mid 2010s and it's only happened a couple times in like 10 years of on and off dual booting.
Just install linux 2nd and have it probe foreign OS, and create a linux only boot partition. Grub will then make a chainloader entry to windows boot partition. Linux won't care if you select windows chainload option, and Windows won't know it ia being chainloaded. No OS overlap. just set Grub Boot entry as primary boot in BIOS, EFI.