I'm trying to install Ubuntu Gnome 16.04 on a new Dell XPS 15 9550. First I found that the live boot system could not find the nvme/m.2 drive. By changing it to AHCI mode in the BIOS settings the live install can see it but the installation hangs at "Preparing to install".
I read in another question that this can be caused by the installer getting confused by the partitions on the disk and that it works if you clear them off first.
This is my first install on a UEFI system and I'm not sure what's what. I'm not interested in Windows dual-boot, I want rid of Windows! I don't undertstand what the ESP/EFI partition does.
Do I just wipe the entire disk or will that break something?!
EDIT: an ubuntu wiki page says I must have a ESP partition. So should I delete all the other partitions except that one? (by delete the other partitions, I mean delete the pre-existing ones and create the ones I want)