General last resort(?) RECOVERY MODE alternative for NVIDIA driver

Question

What to do if the recommend way to install the latest driver in the System Settings > Software and updates or Ubuntu software FAILS?

e.g. what most answers in How do I install the Nvidia drivers? and many others aims at.

Answer 1

No exact details provided, as the details may change with time - the intention here is to keep this answer relevant as long as possible:

1. Boot into recovery mode,
   e.g. while restarting the computer, early, at the "BIOS boot display"; hold or tap ESC, hold SHIFT-key or whatever action makes the grub boot menu appear, select the latest recovery mode.
2. Run fsck and network options in the menu before launching a root shell (those are menu alternatives in recovery mode!).
3. Install e.g. lynx or links (text mode web browsers!) with apt if you do not already have one of them, unless you can use the direct link below for wget <link>.
4. Use lynx/ links/ wget to download the driver from nvidia.com .
   This MIGHT be the link: Check http://download.nvidia.com/XFree86/Linux-x86_64/latest.txt,
   append the file content to http://download.nvidia.com/XFree86/Linux-x86_64/to create a direct link)
5. Remove all of any previously installed drivers.
   E.g. bash NVIDIA-Linux-x86_64-440.31.run --uninstall or
   check dpkg --list | grep -i nvidia and use apt / apt-get to purge relevant portions of what is listed.
6. Install the driver you DL:ed.
   E.g. bash NVIDIA-Linux-x86_64-430.50.run --install
7. type reboot and press ENTER