I'm trying to modify a configuration file. How do I modify the file and uncomment a specific line, if I am unable to edit this file? I have posted a screenshot. Thank you.

Open a Terminal shell . Install vim (sudo apt install vim and press ). Type view /boot/grub/grub.cfg and press . 2 # DO NOT EDIT THIS FILE 3 # 4 # It is automatically generated by grub-mkconfig using templates 5 # from /etc/grub.d and settings from /etc/default/grub 6 # 7 8 ### BEGIN /etc/grub.d/00 header ### 9 if [ -5 $prefix/grubeny ]; then 10 set have_grubenv=true 11 load_env 12 fi Backup the /etc/default/grub file. sudo cp /etc/default/grub /etc/default/grub.original