doc: update pyelftools install method

python-pyelftools is not packaged for RHEL/CentOS with
the exception of RHEL7 EPEL.

Add command to install it with pip.

Fixes: f0f93a7adfee ("buildtools: use Python pmdinfogen")

Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index 4a40121..d7ea852 100644 (file)
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -54,7 +54,9 @@ Compilation of the DPDK
 
 *   ``pyelftools`` (version 0.22+)
 
-    * For RHEL/Fedora systems it can be installed using ``dnf install python-pyelftools``
+    * For Fedora systems it can be installed using ``dnf install python-pyelftools``
+
+    * For RHEL/CentOS systems it can be installed using ``pip3 install pyelftools``
 
     * For Ubuntu/Debian it can be installed using ``apt install python3-pyelftools``