I'm trying to boot into Gparted with a USB stick I have, but when I turn the computer on, it brings me to the GRUB menu. I have a dual boot Ubuntu/Windows computer and am trying to shrink the Windows partition and grow the Ubuntu partition. I'm not great at this kind of stuff, and hoping for fairly clear instructions how to go about doing this.
I tried following these similar instructions, but I got stuck at the step "chainloader /efi/boot/bootx64.efi". I have a feeling that command isn't exactly the same for my situation, but not sure what else I'm supposed to put. Otherwise though, the commands I entered showed good signs, like saying something like it being a gparted fat-formatted partition, or something like that. But also not sure if that is the best route to go to boot gparted.
Also, I'm pretty sure my USB stick is properly formatted, I followed these instructions to be specific.
Edit: Suggested question/answer seems to be related to getting a bootable USB drive w/ GParted, but I have one already, and am having troubles with booting it