I have Ubuntu installed on an external HDD drive. The laptop has Windows installed before.
I started the computer, pressed F9, loaded Ubuntu, did a bit of basic programming, and then clicked turned off. I turned on the computer again, and now it says that drive was not cleanly mounted.
So main question is: If you have Ubuntu installed on an external HDD drive, how do you cleanly unmount it?
shutdown
your system using commands or gui 'shutdown' command & it completes its shutdown (and halts power if instructed) your system will be shutdown. To unmount a drive,umount
or click eject/power-off in your programs (eg, gnome-disks) but shutdown will cause this to occur if done & allowed to complete. I'm not sure what you mean by 'clicked turned off' sorry.