Re: Boot Loader Spec

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On 03/12/2013 06:02 AM, Lennart Poettering wrote:
> On Mon, 11.03.13 21:00, H. Peter Anvin (hpa@xxxxxxxxx) wrote:
> 
>>> Note: $BOOT should be considered shared among all OS installations
>>> of a system. Instead of maintaining one $BOOT per installed OS (as
>>> /boot was traditionally handled), all installed OS share the same
>>> place to drop in their boot-time configuration.
>>
>> This is really just begging on your knees for the various distros to
>> stomp on each others bootloaders, or alternatively -- and just as badly
>> -- not update the bootloaders at all.
> 
> Well, the spec is pretty much exclusively about how to naturally not do
> that (i.e. via drop-in snippets that are named uniquely). 
> 

I am talking about the *boot loader itself*.  Who owns it?

Now, the Grub people definitely have a history of promoting variants
that make multibooting obnoxious, like installing itself in the MBR as
opposed to a partition VBR; this is crazy for reliable multibooting, but
crazy is the norm for Grub.

>> It is way more robust to let each distribution have its /boot and worry
>> about its own bootloader.
> 
> Well, I like to fix problems where they are, instead of ignoring them. I
> mean, you will never be able to fix that there's only one MBR and one
> ESP where a boot loader can be in. We now define a scheme that allows
> friendly OSes to cooperate when using it. You strategy appears more
> about sticking the head in the sand and ignoring the problem entirely.

It is not.  It is based on many years of experience with how to make
multibooting work well in real-life.

	-hpa

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