Re: Boot Order
On Tue, Feb 27, 2018 at 09:01:18PM -0500, Dan Norton wrote:
>On Mon, 26 Feb 2018 10:40:20 -0500
>lsorense@csclub.uwaterloo.ca (Lennart Sorensen) wrote:
>>
>> With UEFI, adding an entry to the boot meny is what you do when you
>> install an OS you want to be able to boot. UEFI does not rely on the
>> boot sector anymore the way legacy BIOS did.
>>
>> Adding it first makes sense since why install it if you don't want to
>> use it? Advanced users can always rearrange the order if they want
>> something else. No way an installer could guess where in an existing
>> list to insert itself. First is the only sane default option.
>>
>Why insert itself anywhere in the first place? The machine booted
>before the installation. To start installing, the installation medium
>is placed in a CD drive or USB port and the machine is rebooted. During
>installation, other OSs are detected by the installer. The installer
>forms the grub menu with the latest install first and the other OSs
>following. Installer finishes by reminding the admin to remove the
>installation medium and it reboots the machine. The latest install
>boots unless the admin intervenes. Where in this process is a
>requirement to tinker with the UEFI menu?
As Lennart said: "adding an entry to the boot meny is what you do when
you install an OS you want to be able to boot". Adding an entry in the
UEFI boot variables *is how UEFI is meant to work*. If you don't add
an entry there, a correctly-working UEFI won't know how to find the OS
you just installed.
There's more information about Debian and UEFI in https://wiki.debian.org/UEFI
--
Steve McIntyre, Cambridge, UK. steve@einval.com
"...In the UNIX world, people tend to interpret `non-technical user'
as meaning someone who's only ever written one device driver." -- Daniel Pead
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