So I have this software CD for my Canon MX420 printer that I've been trying to install onto my computer. However, when I run the .exe setup file, it says I need to run the program as an administrator. Then, after adding the open-as-administrator Nautilus script, I can't change the .exe to open as an executable because it says the file system is read-only. I can't access my printer without this software CD, and I'm not sure how else I could run the setup to get the necessary files.
The linux drivers seems to be available on the european site of canon.