Here is step by step guide to "Trisquelize" any ubuntu distro:
1. First you always want to do a back up:
GUI: Back in Time
http://backintime.le-web.org/download_page/
Command line: rsync
https://rsync.samba.org/
2.- Now download Trisquel, and MD5 file:
https://trisquel.info/es/download
3.- Check that your download was not compromised:
a) put your ISO file and your MD5 file on the same directory
b) open a terminal within the directory where those files are
c) run: md5sum trisquel_7.0_amd64.iso
or run: md5sum trisquel-mini_7.0_amd64.iso
or whatever name yout iso has
d) you must get something like "baf8129a2bf08d6c9c3598a149399165
trisquel-mini_7.0_amd64.iso" compare it with your MD5 file if they match you
are ok. If dont, please DO NOT CONTINUE and contact Trisquel.
4.- Deppending on your needs create live-usb or a live-DVD:
USB:
https://trisquel.info/en/wiki/burn-trisquel-cd-images
DVD:
https://trisquel.info/en/wiki/burn-trisquel-cd-images
5.- Reboot your pc and make sure to select to boot from USB or DVD from BIOS
deppending on where you put Trisquel.
6.- Before installing anything select the option to verify disk.
7.- If the disk was ok, now you can install Trisquel.
8.- Recommended: Wipe all the OS's that don't respect your freedom:
https://www.gnu.org/distros/common-distros.html
If you have one of these then it is ok:
https://www.gnu.org/distros/free-distros.html
9.- Recommended: Encrypt your hole hard drive or SSD drive for a more secure
Trisquel installation.
10.- Enjoy!
Now you have a "Trisquelized" computer, based on Ubuntu but whitout all the
bullshit. And you can do it right now :)