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ref-manual: correct description of empty-root-passwd in IMAGE_FEATURES

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"empty-root-passwd" doesn't actually set an empty root password.
It just doesn't touch the initial root password which is empty by default.

(From yocto-docs rev: 793cfe841148ead7e22fc2caf045247ab27a15da)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Michael Opdenacker
2022-06-15 17:59:08 +02:00
committed by Richard Purdie
parent 63a341f385
commit e816f39696
1 changed files with 13 additions and 2 deletions
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15
documentation/ref-manual/features.rst
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@@ -218,8 +218,19 @@ Here are the image features available for all images:
- *doc-pkgs:* Installs documentation packages for all packages
installed in a given image.
- *empty-root-password:* Sets the root password to an empty string,
which allows logins with a blank password.
- *empty-root-password:* This feature or ``debug-tweaks`` is required if
you want to allow root login with an empty password. If these features
are not present in :term:`IMAGE_FEATURES`, a non-empty password is
forced in ``/etc/passwd`` and ``/etc/shadow`` if such files exist.
.. note::
``empty-root-passwd`` doesn't set an empty root password by itself.
You get an initial empty root password thanks to the
:oe_git:`base-passwd </openembedded-core/tree/meta/recipes-core/base-passwd/>`
and :oe_git:`shadow </openembedded-core/tree/meta/recipes-extended/shadow/>`
recipes, and the presence of ``empty-root-passwd`` or ``debug-tweaks``
just disables the mechanism which forces an non-empty password for the
root user.
- *overlayfs-etc:* Configures the ``/etc`` directory to be in ``overlayfs``.
This allows to store device specific information elsewhere, especially