documentation: Update get-packages.rst

The usage of apt-key is deprecated, thus updated the documentation to reference the new way of installing a repo key.

Signed-off-by: Cybertinus <github@cybertinus.nl>

diff --git a/doc/install/get-packages.rst b/doc/install/get-packages.rst
index a677bed68380fcc3929406b04150fab1a5a0c1e5..4718ecbe76c087a1929cf11bd87313524d721bfa 100644 (file)
--- a/doc/install/get-packages.rst
+++ b/doc/install/get-packages.rst
@@ -86,7 +86,7 @@ APT
 
 To install the ``release.asc`` key, execute the following::
 
-       wget -q -O- 'https://download.ceph.com/keys/release.asc' | sudo apt-key add -
+       wget -q -O- 'https://download.ceph.com/keys/release.asc' | sudo tee /etc/apt/trusted.gpg.d/ceph.asc
 
 
 RPM