Use tmpfs in Ubuntu to speed up

Why? Sometime, you will use USB stick to boot up to another testing Ubuntu distribution, but the USB stick as main disk is really slow. So, I choose to use Linux tmpfs to avoid un-necessary access.

/etc/fstab
tmpfs           /tmp            tmpfs   defaults,noatime,mode=1777      0       0

tmpfs           /var/spool      tmpfs   defaults,noatime,mode=1777      0       0
tmpfs           /var/tmp        tmpfs   defaults,noatime,mode=1777      0       0

Install Android JB build environment on Ubuntu precise x64

Install Oracle JDK :

go to "https://raw.github.com/flexiondotorg/oab-java6/" get oab-java.sh

chmod +x oab-java.sh

sudo ./oab-java.sh

after oab-jave.sh finished.

sudo apt-get install sun-java6-jdk

sudo update-alternatives --config java

choose "java-6-sun"

Install Android build necessary package Ubuntu 12.04 x64:

sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386  libgl1-mesa-dev g++-multilib mingw32 openjdk-6-jdk tofrodos  python-markdown libxml2-utils xsltproc zlib1g-dev:i386 uboot-mkimage

sudo ln -s /usr/lib/i386-linux-gnu/mesa/libGL.so.1 /usr/lib/i386-linux-gnu/libGL.so