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gpg creation: added suggestion on how to set-up rngd (#6483)

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Massimiliano Culpo 2017-11-30 19:51:55 +01:00 committed by scheibelp
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commit 23b1108451
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lib/spack/docs/getting_started.rst
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@ -1096,6 +1096,22 @@ they may use packages you have signed using the ``--export <keyfile>`` flag.
Secret keys may also be later exported using the Secret keys may also be later exported using the
``spack gpg export <location> [<key>...]`` command. ``spack gpg export <location> [<key>...]`` command.
.. note::
Key creation speed
The creation of a new GPG key requires generating a lot of random numbers.
Depending on the entropy produced on your system, the entire process may
take a long time (even a few minutes). To speed it up you may install
tools like ``rngd``, which is usually available as a package in the host OS.
On e.g. an Ubuntu machine you need to give the following commands:
.. code-block:: console
$ sudo apt-get install rng-tools
$ sudo rngd -r /dev/urandom
before generating the keys.
^^^^^^^^^^^^ ^^^^^^^^^^^^
Listing keys Listing keys
^^^^^^^^^^^^ ^^^^^^^^^^^^