Merge pull request #526 from dralves/master

simple patch with a readme.md update that includes troubleshooting instructions

labs/virtualbox/README.md

@@ -3,9 +3,15 @@
 
 Have virtualbox 4.1.8 installed. 
 
-Make sure you change your VirtualBox preferences to not auto-capture keyboard, and also set host key to none.  Otherwise you may accidentally screw-up automated installs.
+Make sure you change your VirtualBox preferences to not auto-capture keyboard, and also set host key to none. Otherwise you may accidentally screw-up automated installs.
 
-That's it! Enjoy local cluster goodness by running:
+That's it! 
+
+--------------
+
+#Running a local cloud
+
+Enjoy local cloud goodness by running:
 
 "mvn clean install clojure:repl"
 
@@ -14,17 +20,37 @@ That's it! Enjoy local cluster goodness by running:
 > (def compute (compute-service "virtualbox" "admin" "12345" :sshj :slf4j))  
 > (create-nodes compute "local-cluster" 2 (build-template compute { :run-script (AdminAccess/standard) } ))  
 
-For java guidance look into src/test/java/org/jclouds/virtualbox/compute/VirtualBoxExperimentLiveTest.java.
+--------------
 
+#Interacting with jclouds-vbox and connecting to machines
+
+For java guidance look into src/test/java/org/jclouds/virtualbox/compute/VirtualBoxExperimentLiveTest.java.  
 For now nat+host-only is the only available network configuration, nodes should be accessible from the host by:
+
 > ssh -i ~/.ssh/id_rsa -o "UserKnownHostsFile /dev/null" -o StrictHostKeyChecking=no me@192.168.86.X  
+
 where X is the node index with regard to creation order starting at 2 (2,3,4, etc...)
 
-It *should* behave as anyother provider, if not please report.
+It *should* behave as any other provider, if not please report.
+
+--------------
 
 #Notes:
 
 - jclouds-vbox is still at alpha stage please report any issues you find.  
-- jclouds-vbox has been mostly tested on Mac OSX, it might work on Linux, but it won't work on windows for the moment. 
+- jclouds-vbox has been mostly tested on Mac OSX, it might work on Linux iff vbox is running and correctly set up, but it won't work on windows for the moment.  
 - cached isos, vm's and most configs are kept at ~/.jclouds-vbox/ by default.  
-- jclouds-vbox assumes vbox has the default host-only network vboxnet0, that the network is in 192.168.86.0/255.255.255.0 and that the host as address 1 in this network.
+- jclouds-vbox assumes vbox has the default host-only network vboxnet0, that the network is in 192.168.86.0/255.255.255.0 and that the host has address 1 in this network.  
+
+--------------
+
+#Throubleshooting
+
+As jclouds vbox support is quite new things might go wrong sometimes. The procedure to make things work again is the following:
+
+1. Remove all relevant vm's (named "jclouds-* ") with the vbox GUI. Make sure to select "delete all files".  
+- Step one should be enough most of the times, but if it fails (by throwing some error):  
+2. kill all vbox processes (VboxHadless, VBoxSVC, VBoxXPCOMIPCD, VirtualBox, vboxwebsrv)  
+3. delete manually the files by executing: "rm -rf ~/.jclouds-vbox/jclouds-*"  
+4. restart the vbox GUI and make sure to delete all remaining machines ignoring all errors.  
+