[PLUG] I can't login to my Ubuntu laptop anymore. It keeps looping at the login.

[Genaro Hernandez]

Hi. I would appreciate it if someone could help me with my issue. It's my
only laptop and I really need it for my schoolwork.

*The issue* is that something went wrong with my Ubuntu 14.04 because at
the GUI login, I enter my password, it looks like it accepts it, then it
says something went wrong, and finally returns me to the login.

*I tried to* login with the shell but my password is not accepted.

*Someone suggested* I do this:

"boot into a live cd/dvd/usb and you'll have a working ubuntu desktop. use
the file manager to mount the internal drive (it'll just be named by size,
like "60GB drive") and copy off what you need. then reinstall like normal"

Can someone tell me if that is good advice? If so, can you provide me with
more relevant information (e.g. links to any web pages/videos)? You can let
me know if I should just do some online searches myself. I did find this
link on how to create a bootable usb stick on Ubuntu:
http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-ubuntu.

Thank you for all of your help.