[Buildroot] [PATCH v2] support/scripts: allow /etc/shadow to be symlinked

[Thomas Petazzoni]

Hello,

On Mon, 12 Jun 2017 15:35:54 +0200, Jens Maus wrote:
> This commit fixes a problem where it was not possible to replace
> /etc/shadow with a symlink to a e.g. a user partition where the
> shadow file is placed. This is required, e.g. for systems where the
> rootfs is mounted read-only but users should still be able to be
> added. Thus, if within an filesystem overlay setup a user tries
> to replace /etc/shadow with a symlink to the real file on a user
> partition a buildroot build stops with an error message because
> sed is called on the symlink instead of following the symlink.
> This commit fixes this shortcoming.
> 
> Signed-off-by: Jens Maus <mail at jens-maus.de>
> 
> ---
> Changes v1 -> v2:
>   - extended follow-symlinks use (requested by Yann)

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com