[systemd-devel] systemd-nspawn overlay and rootfs

[Lennart Poettering]

On Fri, 19.08.16 13:18, Juanjo Presa (juanjop at gmail.com) wrote:

> Ok, thanks for your reply.
> 
> Any suggestion to achieve something similar? I'm trying with btrfs
> subvolumes but I don't get to make union of /usr from OS subvolume with
> /usr from runtime subvolume

btrfs subvolumes and snapshots don't permit you to merge arbitrary
directory trees. They only allow you to make a cheap copy of a
directory tree and then operate on that without affecting the original version.

Lennart

-- 
Lennart Poettering, Red Hat