Set up ubuntu on VAIO pro 13.

old macbook has some issues, install Ubuntu 14.04 to VAIO pro 13.

This blog is the first post from my VAIO.

these are the posts the helped so much:
first make a bootable usb of ubuntu installation, following ubuntu online tutorial.
http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx

follow this post to backup and for overall installation. 
http://steffankarger.nl/2013/12/10/ubuntu-13-10-on-the-sony-vaio-pro-13/
NOTE:

1. in 'trying ubuntu', use disks tool to erase everything on the disk. make they all 'free space'. 
2. 'sudo parted -l' will also detect your usb as /dev/sdb, this might cause some problem about MBR or GPT, but you can just ignore them, because they are unrelated to your ubuntu system. 

after everything in the previous post, the booting is still problematic, sometimes it 'gave up waiting the root device' and lead me to initramsf, where I have to try 'reboot' many times until a successful reboot.

So, don't reboot after the previous post, there are more work to do. If you rebooted and not able to boot into ubuntu, you can use your usb again and 'try ubuntu'

then you follow this post:
http://askubuntu.com/questions/88384/how-can-i-repair-grub-how-to-get-ubuntu-back-after-installing-windows
 I actually didn't use step 7


Now, the booting takes seconds fast to finish, I am very happy with it.

The touchscreen is such a productivity boost!!!!