doc: adding quick overview of menuconfig in the startup-guide

This is just a quick example with grandmaster on how to use menuconfig to change a parameter.

doc: adding quick overview of menuconfig in the startup-guide
This is just a quick example with grandmaster on how to use menuconfig to change a parameter.
4d469ca5 · Benoit Rat · Adam Wujek · cb82c0d7 · 4d469ca5
Commit 4d469ca5 authored May 19, 2017 by Benoit Rat Committed by Adam Wujek Aug 02, 2017
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wrs-startup_guide.md doc/startup-guide/wrs-startup_guide.md +15 -1

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--- a/doc/startup-guide/wrs-startup_guide.md
+++ b/doc/startup-guide/wrs-startup_guide.md
@@ -531,6 +531,21 @@ wait until the WRS has reboot.
 > **Notes**: A NTP server should be provided for the grandmaster switch 
 so that we can distribute the current TAI seconds to the whole WR network
+### Using menuconfig
+Another way to modify the parameters to configure the [WRS] in Grandmaster is by
+[opening an SSH terminal](#login-via-ssh) and then run the command:
+    make -C /wr/etc/ menuconfig
+You will get a menu to directly modify the `dot-config` but with a more friendly[^termdisplay] interface.
+Then just go to `Timing Mode`, select `Grand-Master`, `Save`, `Exit`.
+Your WRS is now ready to be in GM mode at next reboot.
+[^termdisplay]: With some small terminal size, or while using minicom the ncurse interface does not behave well,
+ and the menuconfig is not properly displayed.
 ### By editing the dot-config file in a terminal
 If you prefer to configure the [WRS] using a terminal you should open the `dot-config` file
@@ -558,7 +573,6 @@ CONFIG_TIME_GM=y
 and finally you need to `reboot` the switch.
 Non-DHCP user
 ---------------