ISE & SDK on Ubuntu

1. ISE / Vivado setup (64 bit OS)
• Install ISE/Vivado......... sudo ./xsetup
• bash /Xilinx//ISE_DS/settings64.sh 
• PATH=$PATH:/Xilinx//ISE_DS/ISE/bin/lin64/
• ise
2. SDK Setup
• Install SDK......... sudo ./xsetup
• sudo apt-get install lib32z1 lib32ncurses5 (install ia32-libs)
• source /Xilinx//SDK/settings64.sh 
• PATH=$PATH:/Xilinx//SDK/SDK/bin/lin64/
• Check CodeSourcery and see if arm-xilinx-eabi-* installed or not. If not installed, the same can be installed from .bin located in installer. Set appropriate PATH to bin folder and start SDK. 
• xsdk
3. To install usb drivers  
• sudo apt-get install gitk git-gui libusb-dev build-essential libc6-dev-i386 fxload (Not required in most cases)
• cd //Xilinx//ISE_DS/common/bin/lin64/ digilent
• sudo ./install_digilent.sh (Accept default paths)
• Restart udev........./etc/init.d/udev restart