RFC: Btrfs snapshots feature for F13

[David Zeuthen]

On Wed, 2009-11-18 at 10:47 -0500, Chris Ball wrote:
>    > Also, what is the mechanism to configure this? Just a simple
>    > command from btrfs-progs (best)? Or does it require surgery to
>    > /etc/fstab and/or the initramfs (bad)?
> 
> Josef's been thinking about exactly that -- the current situation
> requires you to add subvol=<snapshot-name> to the mount args, which
> indeed would require you to change fstab (for non-rootfs) or to add a
> rootflags= argument to the grub menu (for rootfs).  He's considering
> changing the btrfs disk format to add a "default subvolume for this
> fs" field that would lead us to a simple btrfsctl command for setting
> that field instead.  I agree that his solution's what we'd like.

OK, sounds good to me. I'm subscribed to the btrfs-list so I guess I'll
just sit around and wait for Josef's patch to show up.

Thanks,
David