[spp] [PATCH 7/7] docs: update hugepages setup

[ogawa.yasufumi@lab.ntt.co.jp]

From: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>

This patch is to update for `Reserving Hugepages` section in Setup
Guide.

* Add description for `update-grub` to activate hugepages config.

* Fix typo of how to confirm 1GB hugepages is supported.

Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>
---
 docs/guides/setup/getting_started.rst | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/docs/guides/setup/getting_started.rst b/docs/guides/setup/getting_started.rst
index 5aaf0ed..9847903 100644
--- a/docs/guides/setup/getting_started.rst
+++ b/docs/guides/setup/getting_started.rst
@@ -45,7 +45,16 @@ is for the number of pages.
 
     .. code-block:: console
 
-        $ cat /proc/cpuinfo | pdpe1gb
+        $ cat /proc/cpuinfo | grep pdpe1gb
+        flags           : fpu vme ... pdpe1gb ...
+
+You should run ``update-grub`` after editing to update grub's config file,
+or this configuration is not activated.
+
+.. code-block:: console
+
+   $ sudo update-grub
+   Generating grub configuration file ...
 
 For 2MB page, you can activate hugepages while booting or at anytime
 after system is booted.
-- 
2.7.4