How to remove Ubuntu entries from UEFI

Question

I 've got an issue with my UEFI boot values. In the past I installed Ubuntu 14.10 LTS as a dual-boot system. It was working ok, until I decited to remove it. I deleted the Ubuntu partitions and merged them with my Windows partition. Everything is working fine, except when I check the Boot Menu inside the BIOS, there is still a value considering Ubuntu.

https://i.stack.imgur.com/c8Vd2.jpg

I followed this guide: https://askubuntu.com/questions/63610/how-do-i-remove-ubuntu-in-the-bios-boot-menu-uefi but the value is still remaining there. Is there a way to completeley remove it without loosing the values that point to my Windwows system.

My Laptop is a Lenovo G50-70

Thank you in advance!

Answer 1

Boot a live Linux cd using legacy, have a USB stick with you.

1. Run lsblk to find out where your efi partition is

   $ lsblk
   

2. Mount that efi partition and your USB stick to 2 separate folders (replace sda1 with the path of your efi partition and sdb1 with the path of your USB.

   $ mkdir /mnt/usb
   $ mkdir /mnt/efi
   $ mount /dev/sda1 /mnt/efi
   $ mount /dev/sdb1 /mnt/usb
   

3. Cd into the EFI folder of the efi partition

   $ cd /mnt/efi/EFI
   

4. Move the folder "ubuntu" into the USB so you can restore it if something goes wrong

   $ mv ubuntu /mnt/usb
   

Done!