From 9a893e80c2a5ee665487ce73845a88946d65ade4 Mon Sep 17 00:00:00 2001 From: Kashyap Chamarthy Date: Mon, 2 Jul 2018 14:29:01 +0200 Subject: [PATCH] useful-image-properties.rst: Update default RNG source Nova's libvirt driver has changed[*] the default source from /dev/random to /dev/urandom: "Since libvirt 1.3.4, any RNG (Random Number Generator) device path (that returns random numbers when read!) is accepted. However, the recommended source of entropy is `/dev/urandom` (it is non-blocking; and doesn't have the same limitations of `dev/random`, which is a legacy interface)." Update the relevant Glance documentation to reflect that. [*] https://git.openstack.org/cgit/openstack/nova/commit/?id=814bfd93 Change-Id: I656b5c244b98202f3c8d019d0bbeddc4e7c0314a Signed-off-by: Kashyap Chamarthy --- doc/source/admin/useful-image-properties.rst | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/doc/source/admin/useful-image-properties.rst b/doc/source/admin/useful-image-properties.rst index 66f6749bf4..8c997fd276 100644 --- a/doc/source/admin/useful-image-properties.rst +++ b/doc/source/admin/useful-image-properties.rst @@ -268,9 +268,9 @@ Here is a list of useful image properties and the values they expect. configuring the instance's flavor. By default: * The generator device is disabled. - * ``/dev/random`` is used as the default entropy source. To specify a - physical HW RNG device, use the following option in the nova.conf - file: + * ``/dev/urandom`` is used as the default entropy source. To + specify a physical HW RNG device, use the following option in + the nova.conf file: .. code-block:: ini