Application Menu on Ubuntu 9.04

To add manually installed Eclipse 3.5 to the Applications->System Tools for easy start up.

1. From System->Preferences->Main Menu to start the menu editing, highlight System Tools, select New Item, the Create Launcher dialog pops up.

2. The default type is Application, Enter "Eclipse 3.5" in the Name field, Browse the executable /usr/local/lib/eclipse/eclipse, click OK, then enter the comment as Java Development Tool. Click OK. The new item Eclipse 3.5 is created and selected at Main Menu dialog. Click Close to finish the Main Menu editing.

3. The item Eclipse 3.5 is the new item in Application->System Tools now.

Tools for Android development on Ubuntu 9.04

1. Install Sun Java tool kit 6:

sudo apt-get install sun-java6-jdk

2. Verify the Java version:

java -version
javac -version

3. Download Android SDK, android-sdk-linux_x86-1.5_r3.zip, from http://developer.android.com/sdk/1.5_r3/index.html, and extract to /usr/local/lib. Update the ~/.bashrc to append the Android SDK tools to $PATH:

export PATH=$PATH:/usr/local/lib/android-sdk-linux_x86-1.5_r3/tools

4. Download current Eclipse 3.5, eclipse-java-galileo-linux-gtk.tar.gz, from http://www.eclipse.org/downloads/. Extract to /usr/local/lib.

5. Start up Eclipse, select Help->Install New Software. In the Install dialog, click Add..., then enter http://dl-ssl.google.com/android/eclipse/ in the location then click OK. Select Developer Tool which contains Android DDMS and Android Development Tools, click Next, Next. Accept the terms of License agreement, then click Finish. Go ahead at the restart Eclipse prompt.

6.Set up the Android SDK PATH in Eclipse. Select Windows->Preferences->Android. Browse the SDK Location to set the path.

7. Create an Android Virtual Device (AVD):
android create avd --target 2 --name my_avd

8. If Subversion is not on the system, run follwing to install Subversion:
sudo apt-get install subversion

Otherwise, run following command to checkout the example source from Google to learn and start:
svn checkout http://android-examples.googlecode.com/svn/trunk/ android-examples

Gigabit network for VMWare ESXi 4 Server

A gigabit network is a must for VMWare ESXi 4. Otherwise the slow network will cause lots of problems such as the vSphere Client is extremely slow and some times it complains the server takes to long to respond and the operation can't be completed. In addition, either upload or download from the datastore browser will complain the IO error as well.

If a gigabit connection is established, all of above problems will be resolved.

Transfer files between VMWare ESXi server and your computer

To enable the ssh at ESXi server, at the server console, press ALT-F1, type "unsupported", press Enter. When the password prompt shows up, enter the root password to log in.

Delete the first character # in the line containing ssh in the file /etc/inetd.conf to make it similar to the line below, then reboot the server.

ssh stream tcp nowait root /sbin/dropbearmulti dropbear ...

After ssh is enabled, putty can ssh to the server from your PC. WinSCP can upload/download files with the server as well.

An other tool can download files from the server is Firefox. Following example URL can browse the files at datastore1 on the server that has the IP address as 192.168.111.222:

https://192.168.111.222/folder?dsName=datastore1

In addition, the ESXi server's datastore browser also can upload and download files between the server and your PC.

VMWare Tools on CentOS

1. Update the system.
yum update

2. Install gcc and kernel development tools.
yum install gcc kernel-devel

3. Following the instruction at http://www.vmware.com/support/ws5/doc/ws_newguest_tools_linux.html to complete the installation.

Using Flash Drive under VirtualBox

To use the flash drive on the virtual machine:

1. Enable the USB Controller and USB 2.0 (EHCI) Controller from the Settings menu.
2. Logon to the virtual machine, plug in the flash drive to the system then right click on the USB devices logo at the buttum of the window and select the flash drive just lugged in.
3. After a few seconds, a new file folder started up at the Desktop. The flash drive can be used from now.
4. Folloing is the list of mount point for the flash drive on popular OS.

       CentOS - /dev/sda1
       OpenSolaris - /media
       Ubuntu - /media
       Solaris 10 - /rmdisk

5. The flash drive should be mounted and unmounted like a normal disk.

Assign host name to DHCP Solaris 10 Client

Put the host name in the file /etc/nodename to assign the host name to Solaris 10 with DHCP network configuration. Otherwise, the system has the "unknown hostname" problem.