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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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How to setup gentoo and snapper together? (lemmy.dbzer0.com)

submitted 3 days ago by kylian0087@lemmy.dbzer0.com to c/linux@lemmy.ml

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Hello folks!

So I have installed gentoo a few times before so I am not completely new to it. But I am new to managing things like btrfs and or LVM manually.

So my plan is to install Gentoo with btrfs and snapper so that you can boot in to read only snapshots from grub and rollback once booted. This is what Opensuse Tumbleweed does.

I would like to know which btrfs layout and or LVM layout is required for such a setup. I have been able to find some info that I think requires the /boot subvolume to be on the root of the system. Also some say you need to make the .snapshot volume some say you dont and snapper does this. So their is a fair bit of conflicted info about it to get working right.

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[–] a14o@feddit.org 1 points 3 days ago

Snapper assumes that your system is "formatted with btrfs or some other snapper compatible filesystem". I'm pretty sure that this means that that your root directory is mounted from a btrfs subvolume.

So all you need to do is setup btrfs at install time and then configure Snapper. You should consider mounting /home from its own subvolume. That way you can roll back the system but keep all your files.

There are a lot of other things to consider when setting up btrfs, so make sure you read the docs. (A lot of the config can changed at a later point.)