I have created a live USB of Ubuntu 18.04 from my already installed Windows 10 software Rufus.
I restart my laptop. When the Lenovo logo appears, I press Fn + F2. My laptop enters the BIOS setup utility.
In BIOS menu, I press → for the required number of times to move to the Boot tab.
There, my default UEFI is selected. By pressing ↓ for the required number of times, I move to Ubuntu Disk option shown under sub-tab of BOOT from. Then I pressed F6 (without Fn) one time. The Ubuntu Disk option moves to the top and Windows 10 Boot Manager moves to the second position.
Then I press F10 with the label Save and Exit. It makes the laptop to save the current configuration of BIOS setup utility and restart.
Now when the laptop reboots and the Lenovo logo appears, the laptop boots into Windows 10 mode.
Why is this happening and how can I accomplish my task?
I don't want to keep Windows 10 and I want to remove it completely. I only want to keep Ubuntu.
My Lenovo model is Lenovo IdeaPad 330.
This is a screenshot of my Ubuntu 18.04 live USB folder:
If I select Legacy instead of UEFI under the Boot tab of the BIOS setup utility, the laptop is able to boot from the Ubuntu live USB, but in the start page, where I have to select language, and then either Try Ubuntu or Install Ubuntu option only my keyboard is working and the touchpad is not working.
Also if I select the Try Ubuntu option, the Ubuntu desktop appears, but there too only my keyboard keys are working and touchpad isn't working.
In legacy mode when the laptop boots from the Ubuntu live USB the following screen appears:
There is no option of f6 present there. Also the screen is completely different.
After following instructions from the comments, I entered the grub menu, but my grub menu looks different as shown below.
Also there is no
ro quite splash. There is only
quite splash - -. I replaced it with
nomodset quite splash. Then I pressed f10.
The laptop rebooted from the live Ubuntu USB into Try Ubuntu, but still my TouchPad was not working.