X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;ds=sidebyside;f=nfvbenchvm%2FREADME.rst;fp=nfvbenchvm%2FREADME.rst;h=29ec91ff7f563b2598ba11b9bc1b7bd2c7b463cb;hb=1a9c875d35daf4e742cd980e824c862ad793a658;hp=dad9f46d98afefa9f2d559890d0b3b441ff8514a;hpb=b8186aa57c5026c556f5ac41f49126b14d720cf4;p=nfvbench.git

diff --git a/nfvbenchvm/README.rst b/nfvbenchvm/README.rst
index dad9f46..29ec91f 100644
--- a/nfvbenchvm/README.rst
+++ b/nfvbenchvm/README.rst
@@ -13,10 +13,23 @@ Pre-requisites
 --------------
 - must run on Linux
 - the following packages must be installed prior to using this script:
+    - python3 (+ python3-venv on Ubuntu)
+    - python3-pip
     - git
-    - qemu-utils
+    - qemu-img (CentOs) or qemu-utils (Ubuntu)
     - kpartx
 
+.. note:: the image build process is based on `diskimage-builder
+          <https://docs.openstack.org/diskimage-builder/latest/index.html>`_
+          that will be installed in a Python virtual environment by nfvbenchvm
+          build script build-image.sh.
+
+.. note:: build-image.sh uses the `gsutil <https://pypi.org/project/gsutil/>`_
+          tool to interact with Google cloud storage (to check if the images
+          exist and to upload the images).  This is normally only needed in the
+          context of OPNFV build infrastructure, and build-image.sh can be used
+          without that tool in development environments.
+
 Build the image
 ---------------
 - cd dib