Hi! I recently purchased an Aspire A515-54G, which came with Windows preinstalled. I'm trying to install Ubuntu 18.04 LTS from a live stick but when I attempt to do this, Ubuntu cannot detect the 100GB empty partition I have prepared on the SSD for it, it can only see the USB stick that it's on. Gparted only shows the stick too. Consequently, I can't install Ubuntu onto the SSD.
I have completed the precautions found in most tutorials on this (deactivating secure boot and such). Searching this forum so far seems to indicate that I need to switch my SATA mode, which is listed as RST with Optane, to AHCI. Unfortunately I have no such option, the bios displays this SATA mode in the Information tab but I can not change it there, nor in any other tab.
Do I need to reinstall Windows? This would not be a problem, I don't have any important files on the laptop yet. What do I need to do to be able to get my Ubuntu installed?