Re: F29 System Wide Change: Make BootLoaderSpec the default ['id' field]

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On Mon, Jun 18, 2018 at 04:40:41PM +0200, Ondřej Lysoněk wrote:
> On 14.6.2018 12:06, Jan Kurik wrote:
> I noticed the official spec defines a field named "machine-id". AFAICS,
> GRUB2 doesn't implement that option, but it supports a field named "id".
> Are these used for the same thing? If they are, why are they named
> differently?

This questions wasn't addressed yet afaics.

The partial answer is that "id" serves a different purpose to "machine-id":
- "machine-id" is used to specify the machine for which the entry was installed
- "id" is used by grub2 as a unique identifier usable for saving entries

That raises two questions:
1. Why isn't just the bls-snippet filename used as the key? It's
   necessarily unique and should be usable for the purpose of uniquely
   identifying the boot entry without creating a separate field.
2. Why is "id" supposed to be sortable? What sorting would grub2 do
   with it?

Zbyszek
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