That looks all right... unless you did not properly copied the line in /etc/apt/sources.list. Double-check it and modify it if necessary. I suggest you use a graphical text editor to feel more at ease. Since you are using Trisquel 8, here is how to open /etc/apt/sources.list with the pluma text editor and administrative privileges:
$ gksu pluma /etc/apt/sources.list

Reply via email to