rumba: Update README with more information

Fixes #23

1 files changed, 15 insertions, 6 deletions

diff --git a/README.md b/README.md
index beb56c8..750f528 100644
--- a/README.md
+++ b/README.md
@@ -73,10 +73,10 @@ folder.
 
  * [QEMU](http://wiki.qemu-project.org/Main_Page) is a generic and
    open source machine emulator and virtualizer.
-   
+
    In order to use the qemu testbed, the user should install the
    qemu and bredge-utils packages ion which the testbed depends:
-       
+
        # sudo apt-get install bridge-utils qemu
 
    A minimal QEMU testbed is defined as follows:
@@ -103,6 +103,13 @@ folder.
    key has been added. Optionally, a project name, a different testbed
    URL and a custom image can be specified.
 
+   Issues have been reported that Rumba asks for the password even
+   though a public key was added to the emulab interface. In this case
+   a workaround is to start an ssh-agent and add the public key there.
+
+       $ eval `ssh-agent`
+       $ ssh-add /home/morty/.ssh/id_rsa.pub
+
  * [jFed](http://jfed.iminds.be/) is a Java-based framework for
    testbed federation.
 
@@ -133,8 +140,9 @@ folder.
        $ eval `ssh-agent`
        $ ssh-add /home/morty/cert.pem
 
-    Pay attention to run your rumba script in the same terminal used for the
-    previous commands, without changing the user (e.g. using su or sudo).
+   Pay attention to run your rumba script in the same terminal used
+   for the previous commands, without changing the user (e.g. using su
+   or sudo).
 
 ## Accessing nodes after swap-in
 
@@ -143,5 +151,6 @@ folder.
 
        $ rumba-access $NODE_NAME
 
-   Where $NODE_NAME is the name of the node to access.
-
+   Where $NODE_NAME is the name of the node to access. In case of the
+   QEMU testbed, the password of the downloaded buildroot images is
+   'root'.