On May 27, 2018, at 3:12 AM, Pascal Hambourg <pas...@plouf.fr.eu.org> wrote:
> Le 27/05/2018 à 00:19, Rick Thomas a écrit : >> Does anyone have experience installing Debian on a Minnowboard Turbot? > > Not me. > >> I have a dual-core, single ethernet, Turbot. I’m able to install Debian >> (Buster) from a physical DVD, but when I dd the installer .iso to a USB >> stick, and try to install from the stick, the Turbot’s firmware doesn’t see >> the stick as a bootable medium. >> If I install (using the physical DVD in a USB connected DVD drive) to a USB >> stick, that USB stick (the one I installed to) will boot fine. So it’s not >> that it just can’t boot from a USB stick. >> The documentation isn’t entirely clear, but I *think* the Turbot’s boot >> firmware is UEFI-only. Would that make a difference? > > Probably not, if the same image boots from a DVD. > >> It seems odd that the exact same bits should be seen as bootable when >> presented on a DVD, but not when presented on a USB stick… > > No, it is perfectly normal. The expected boot structures on a DVD and a USB > stick (or floppy, hard disk...) are completely different. > The Debian installer ISO images are called "hybrid" because they combine a > DVD layout and a regular hard disk (or USB stick). But this comes at a price > : the partition table layout could be considered invalid on a strict point of > view. Thanks, Pascal! So the UEFI firmware is more forgiving of a partition table that is “invalid from a strict point of view” when it’s coming from a physical DVD, than it is when it’s coming from a USB stick? That would explain what I’m seeing. Can you suggest any way to get around the problem? Enjoy! Rick
