[GTALUG] Making a UEFI capable debian USB net-install

[Lennart Sorensen]

On Fri, Jul 05, 2019 at 07:17:22PM -0400, Michael Galea via talk wrote:
> Just completed an install of debian on a Lenovo T480 running windows, for
> dual boot.
> The install was made more complex by the fact that the T480 doesn't have a
> CD, and that the laptop booted win10 in UEFI with secure boot.
> 
> I was very surprised by the differing consensus of how to generate a UEFI
> bootable net-install. A simple dd of the image to the usb stick did NOT
> result in a UEFI bootable image. What did work, was formatting the usb stick
> vfat, and extracting the install iso onto it.
> 
> I found this to be a clumsy workaround. Does anybody have a better method?
> 
> Also, the literature was rife with warnings of Window's tendency to blow
> away the the linux bootloader (although some claims were made that this is
> less likely under UEFI). Does anyone have any experience with this, and what
> what is a likely recovery procedure for it?

dd of the debian install image has always made a bootable USB key for me,
both on legacy BIOS and UEFI systems.  Of course that is dd to the disk,
not a partition on the disk.

I have not had windows 10 ever break my linux boot loader.  I don't
remember if windows 7 ever did it either because that is so long ago.
Before that it was a common problem for sure.

-- 
Len Sorensen