Re: kern/50142: Cannot install NetBSD on machine with USB keyboard

[Török Edwin <edwin%etorok.net@localhost>]

On 08/11/2015 11:00 AM, matthew green wrote:
> The following reply was made to PR kern/50142; it has been noted by GNATS.
> 
> From: matthew green <mrg%eterna.com.au@localhost>
> To: =?UTF-8?B?VMO2csO2ayBFZHdpbg==?= <edwin%etorok.net@localhost>
> Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
>     netbsd-bugs%netbsd.org@localhost, gnats-bugs%NetBSD.org@localhost
> Subject: re: kern/50142: Cannot install NetBSD on machine with USB keyboard
> Date: Tue, 11 Aug 2015 17:57:21 +1000
> 
>  T?r?k Edwin writes:
>  > On 08/11/2015 09:52 AM, matthew green wrote:
>  > > please try this image:
>  > > =
>  
>  > >    http://ftp.netbsd.org/pub/NetBSD/misc/mrg/NetBSD-7.0_RC2-amd64.iso
>  > > =
>  
>  > > which has the patch below applied.
>  > =
>  
>  > Thanks, could you upload the -install.img variant please? The ISO won't =
>  boot from my USB flash drive, not even with Unetbootin.
>  
>  try this.  i have no idea if it works, but i think i found the right
>  target to build it :-)
>  
>     http://ftp.netbsd.org/pub/NetBSD/misc/mrg/NetBSD-7.0_RC2-amd64-install.=
>  img.gz

Not sure what went wrong, but I get:
NetBSD MBR boot
Boot error

I'll try to compare your image to the official one, and perhaps just copy your kernel inside the official install-img and see if that works.
Will keep you posted if I succeed.