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Re: Trouble making bootable USB from ISO image

On Sat, 04 May 2019 18:41:18 +0200
deloptes <deloptes@xxxxxxxxx> wrote:

> Nicolas George wrote:
> > That is absolutely not true. Partition data, UEFI or not, bootable
> > or not, are just octets on a medium. They could be created with an
> > Atari if Atari had USB plugs, that would not make any difference.
> > 
> > The vague truth behind your statement is:
> > 
> > To edit UEFI variables, the computer need to have booted in UEFI
> > mode.
> > 
> > The UEFI variables, the contents of the computer's non-volatile
> > internal memory. Not the contents of the drive. They contain,
> > amongst other things, the default boot options. They are not used
> > when selecting the boot option manually.  
> Yes, this is what I wanted to say - you are right. You can create the
> partition with fdisk or alike, but grub refuses to install if it is
> not booted in UEFI

Datum: I bought a Win10 netbook six months ago. It doesn't do legacy.
It appeared that Stretch was up to the job, so I made a netinstall USB
stick, plugged it in and booted...

Just like a normal installation, and it even left Win10 bootable at the