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

submitted 1 month 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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[–] ashaman2007@lemm.ee 1 points 1 month ago

If you set up the system like openSUSE then it makes sense snapper would work. I'd look at the openSUSE docs, its not like btrfs is different in Gentoo right? https://en.opensuse.org/SDB:BTRFS#Default_Subvolumes

[–] just_another_person@lemmy.world -2 points 1 month ago (1 children)

Can you explain what your end goal and use-case is? I'm confused on why you want both as they are both capable of each doing each other's jobs in different ways.

[–] kylian0087@lemmy.dbzer0.com 0 points 1 month ago* (last edited 1 month ago) (1 children)

What do you mean with both?

[–] just_another_person@lemmy.world 0 points 1 month ago* (last edited 1 month ago) (1 children)

Well BTRFS can go back to PiT snapshots and run from there, and snapper is an abstraction for BTRFS...so what's your goal?

[–] kylian0087@lemmy.dbzer0.com 1 points 1 month ago

Like I said in the post. To set it up just like Opensuse Tumbleweed. I find snapper quite easy to work with and use to rollback from those bootable snapshots. Also it making snapshots after updates is quite useful too