Recommended Btrfs Assistant configuration

[Leya]

@shuvashish76

Why I don’t have @/.snapshots subvolume by default? Do I need to manually create it? | reference: according to @dalto it’s unnecessary. (old post though)

I’d need to double check but I think there should be a .snapshots subvolume. I remember seeing it in my installation.

@shuvashish76

• What are the @/var/lib/machines and @/var/lib/portables? Do I need snapshots of those as well?
• Necessary to snapshot @cache and @log subvolumes?

@dalto

They aren’t really “extra”. Every distro uses a different subvolume layout.

@cache is created because there is no reason to take snapshots of your cache. It is totally disposable data so creating that subvolume removes it from the snapshots of @.

@log is created for the opposite reason. By keeping your logs outside of @, if something goes wrong and you need to restore a snapshot of @, your logs won’t be overwritten so you can still access them and see what went wrong.

var/lib/portables and var/lib/machines aren’t created by the distro, they are created by systemd. It should be safe to just ignore those.

That being said, if you want only @ and @home you can remove @cache and @log Alternatively, if you would prefer to re-install, the subvols that the installer creates are in /etc/calamares/modules/mount.conf and you can edit that file before running the installer.

@shuvashish76

What are recommended “timeline snapshots” configuration from ‘Snapper Settings’? | reference : @dalto 's recommendation here.

There is a section with recommendations for different use cases in the btrfsmaintenance README on GitHub.

@shuvashish76

Recommended “Btrfs maintenance setting” ?

The default time settings should be fine. Just turn on the scrub and balance tasks and leave the defrag task off. I’ve activated it for all subvolumes, but I’m not entirely sure if that is necessary or if for example @ and @home would be enough. Maybe someone else could say more about that.

@shuvashish76

Any manual intervention necessary for snap-pac? Do I need to enable it like grub-btrfs? It suggests no configuration is needed.

snap-pac is set up to take snapshots of a snapper config named root out of the box. So if you created a snapper config for @ in btrfs-assistan that is named root and you only want to take snapshots of @, you don’t need to do anything else. If you want to also take snapshots of @home for example, you’d need to create additional configs for that. But strictly speaking @ should be enough.

@shuvashish76

On plasma desktop Btrfs Assistant is in White theme as always no matter what global theme I set for the desktop. How to make it Dark?

For this I actually have no idea. Maybe someone else can help