runtah

Ive been constantly switching between my two OSs, Win7 and Linux Mint for just flashing a ROM to my Xperia device. And ofcourse, I hate being in Windows. So, I found this nice little method to do the same in my Linux.
Credits go to these two pages:
http://duopetalflower.blogspot.com/2012/08/flashtool-in-ubuntu-linux.html
http://ubuntuforums.org/showthread.php?t=2084266
1. First of all go to

http://www.flashtool.net/downloads.php

and download the Linux version
2. Extract the 7z then the TAR somewhere and you find the directory FlashTool
3. Now some configuring, first of all you need a package called libusb. By the time you might come to this post the lib may get upgraded so just use your head to handle the scenarios a bit. First off, go to the site

http://libusbx.org

and download the latest tar.bz2 version.
4. Place it somewhere and cd into that directory
5. Type

sudo su

6. Youre given root rights, type

tar xvf $(ls | grep "libusb")

This will extract the tar.bz2 file youve downloaded, considering that directory has no other file whose name contains "libusb".
7. Now type

cd $(ls | grep "libusb")

and youll be inside the extracted directory.
8. Type

$ sudo su
$ ./configure && make && make install && sudo ldconfig

9. Now type this command the configure some USB settings for Flashing interface

sudo cp /etc/udev/rules.d/70-persistent-net.rules /etc/udev/rules.d/80-persistent-usb.rules

10. Open that newly created file in nano using

sudo vi /etc/udev/rules.d/80-persistent-usb.rules

11. Add these lines to the end of the document

SUBSYSTEM=="usb", ACTION=="add", SYSFS{idVendor}=="0fce", SYSFS{idProduct}=="*", MODE="0777"

12. Most of the hard part is done, now just a final installation of the ia32-libs using

 sudo apt-get install ia32-libs 

13. Now youre good to go just go to the directory where your Flash Tool executable is and just type

./FlashTool