set up spark cluster -- create VM

声明：文章原创，转载需注明出处。由于文章大多是学习过程中的记录内容，技术能力有限，希望大家指出其中错误，共同交流进步。由此原因，文章会不定期改善，看原文最新内容，请到：http://blog.chinaunix.net/uid/29454152.html
I want to set up a cluster at my computer.
the first prepare machine, my computer 4cores 8g mem 
the second virtualBox software
the third ubuntukylin-14.04.2-desktop-amd64.iso
1. install virtualBox
    download virtualBox package : />     at the current dir and install it by command: sudo dpkg -i virtualbox-5.0_5.0.0-101573-Ubuntu-trusty_amd64.deb
2. create your own virtual machine

    
before you set the size you can use "df -h" to view your free space
2. install the OS ubuntu
    start the virtual machine in normal mode then  appear below interface

    then start and install the ubuntu in your virtual machine
    take your attention: set the same username of your serveral ubuntu system because the need of cluster!!!