Re: [PATCH v1 33/37] btrfs: grub2-btrfs-06-subvol-mount

[Neal Gompa]

On Tue, Oct 8, 2024 at 2:59 AM Michael Chang via Grub-devel
<grub-devel@gnu.org> wrote:
>
> On Mon, Oct 07, 2024 at 09:40:40PM GMT, Vladimir 'phcoder' Serbinenko wrote:
> > What do you try to achieve with this that can't be achieved with using full
> > path? We should avoid using hidden state for directory parsing. Solaris
> > GRUB legacy used it for ZFS and it was a mess.
>
> If a path is relative to the default subvolume, it cannot access files
> outside of the default subvolume tree. This patch enables access to
> files in other subvolumes by mounting them to a specific directory
>

This is incredibly useful functionality, especially if you have a
non-hierarchical subvolume setup (sometimes called a flat setup) like
Fedora and a few other distributions do. If you want snapshots to
exist outside of the root subvolume or default subvolume, then this
patch is needed or you cannot access them properly for boot to
snapshot.



-- 
真実はいつも一つ！/ Always, there's only one truth!