On Thu, 22 Feb 2018 16:41:42 -0500 Felix Miata <mrma...@earthlink.net> wrote:
> Dan Norton composed on 2018-02-22 16:05 (UTC-0500): > > > Installs of both stretch and buster modify the boot order such that > > "debian" is first under "UEFI Boot Sources". After installation, the > > bios menu has to be edited in order to boot from DVD or CD or USB > > drive. Also "Hard Drive" has been replaced with "debian". > > > The PC is: > > Hewlett-Packard HP Pro 3400 Series MT/2ABF, BIOS 7.16 03/23/2012 > > > Apparently it is deliberate, so what is the reason for this? > > AFAICT, it depends on the particular BIOS design and settings > therein, how it's designed to react to what it finds in the EFI > partition, particularly if there is more than one entry there. Brand > name PCs tend to offer fewer BIOS options. In case someone finds this thread in the archives; finally the reason got through to me over on debian-boot[1]. Unlike the primary/logical scheme with an mbr, where an installer can just write a new mbr, in the UEFI scheme the grub code is *added* to the EFI system partition with nothing pointing to it until the UEFI menu is changed. [1] https://lists.debian.org/debian-boot/2018/02/msg00460.html
