this post was submitted on 05 Sep 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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All those distros are compatible with grub, and come with their own copies of it. You just need to install your distros, and then when you say "I want THIS ONE to manage boot", you follow this tutorial. (It's supposed to help you reinstalling grub after Windows, but it works fine for grub after another Linux instal).
Or, if you want to be lazy - install last the distro that you want to manage boot, then tell it "screw the current boot, reinstall it".
I wouldn't bother with a bootloader partition. The bootloader runs fine from any distro partition, and it's small enough so you don't need to worry about it wasting space.
I've been running my system without swap whatsoever for quite some time, and it runs fine. But if you're planning to use hibernation or similar, reserve the same amount of swap space as you have RAM; for example if you have 8GB RAM then at least 8GB swap.
IMPORTANT: if hibernating a distro, don't boot another distro, otherwise the hibernation data will get wiped.
Perfect! I will be disabling hibernation in Bios. Also, how exactly do you choose a default bootloader when each distro automatically installs their own? not sure on that process. Or do things like display managers matter? or is Xorg or Wayland pretty much good for all three?
Hibernation is an OS feature, so you can't disable it in the BIOS. You can either disable it in all your distros or simply not use it.
Oh, believe me: There are so many messy BIOS and UEFI implementations out there that you can definitely deactivate it in the BIOS for some. Which just introduces even more mess where hibernation triggered on the OS level then fails.