Installing Ubuntu on the Lenovo y740 from Windows, dual-boot edition.
Please create a backup of everything, in case anything goes wrong. The first thing you will need for this installation is a copy of the Ubuntu ISO (18.04.2)
. You will now need to make this download bootable. For installation from Windows, there is a tutorial here
. While installing the Ubuntu ISO, you should make a full image Windows backup if you haven't already. Following after that, you should free up some space for your new Ubuntu system. If you're on Windows, run the Disk Management Console as admin, you can find some instructions here.
Afterwards we will need to enter the "advanced startup screen", which if you can't find, should be available from the Windows file search with the term UEFI
. You will see the commands: Use a Device, Troubleshoot, Turn off your PC
. Get into "Troubleshoot", select the "Advanced options" within it. Next you will want to click the "UEFI Firmware Settings" button.
This will allow us to enter BIOS. There are a couple of things that will be necessary here, disabling "secure boot", changing the boot order, and also converting your storage from RAID to AHCI. The move from RAID to ACHI is to expose the SSD and bootloader, so you don't have to create a new EFI parition. If not, you might run into some of the same issues that I have, with GRUB not working. After this is done, you will now want to boot from your Ubuntu bootable. This can be done in two separate ways, changing the priority list and exiting BIOS, or exiting BIOS and then moving to the "advanced startup screen" again. Now it's time to startup Ubuntu, it would be a good idea for you to "Try without Installing" first. After you have it started up, test your WIFI and such.
Once you've done a bit of fooling around, you can move to the installer. The installer should give you a couple of options when writing the OS to disk, "boot alongside with Windows BootLoader", "erase everything", and "Something else". I chose the "Something Else" option, you should see some instructions here
. With 16gb RAM, I set my SWAP to about 20gb. Once you've completed that, the installation should start as usual. If you aren't met with GRUB when booting from now on, look into changing the priority order for your operating system in BIOS.
If you want your "brightness" setting to work, you should consider looking into ubuntu-drivers.