I may have just gone through some similar areas setting up -current on a 1TB SSD (and having no luck w the installer) and got by (I think) using these NetBSD 8 notes, that necessarily get into some details: https://wiki.netbsd.org/Installation_on_UEFI_systems/
On Tue, Feb 4, 2020 at 12:02 David Brownlee <a...@absd.org> wrote: > On Tue, 4 Feb 2020 at 02:05, MLH <m...@goathill.org> wrote: > > > > So does anyone know how to get rid of the kernel's idea of what > > the wedges is? Every time I try, even after zeroing the drive over > > a TB into it and rebooting multiple times after deleting the gpt > > partitioning, etc. The kernel still says it is busy and won't allow > > me to delete wedges. > > Does 'gpt show wd2' show anything? If so try 'gpt destroy wd2' and run it > again > > (If you want to zero by hand you'll need to hit both the start and end > of the disk as there is a gpt backup). gpt destroy is the key :) >