Groups > linux.debian.user > #209844

Re: Dual Boot Two Debian Versions

From	Pascal Hambourg <pascal@plouf.fr.eu.org>
Newsgroups	linux.debian.user
Subject	Re: Dual Boot Two Debian Versions
Date	2019-06-12 21:20 +0200
Message-ID	<y8gWR-2Ik-1@gated-at.bofh.it> (permalink)
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Le 11/06/2019 à 21:45, Stephen P. Molnar a écrit :
> 
> On 06/11/2019 02:20 PM, Pascal Hambourg wrote:
>>
>> IMO installing GRUB can be desirable for two reasons.
>>
>> 1) Obviously, it allows the drive to boot by itself so that you can 
>> move it into another machine, or remove the current boot drive, or 
>> change the boot order.
>>
>> The OP uses legacy boot, but be aware that this won't work the same 
>> with EFI boot : installing a second instance of a Debian system will 
>> overwrite the existing EFI boot entry "debian".
>>
>> 2) It creates a grub.cfg file which provides hints about kernel 
>> parameters and so on when running update-grub from another system.

> Should I, or should I not, install the the Buster grub sub-directory on 
> sdd, the drive on which I intend installing Buster?

I thought I was clear enough in my previous post : I recommend to 
install GRUB with Buster on its own drive for the two reasons exposed above.

> My understanding 
> has been that I could install Buster, but not boot it at the end of the 
> installation,

Why not ?

> but rather close buster, reboot the computer into Stretch 
> as root and then run update-grub in Stretch. Is this still a safe way to 
> proceed?

Neither safe nor unsafe. What matters is whether you install GRUB with 
Buster or not.

> My intent is to remove Stretch from the platform once that I'm confident 
> with the performance of Buster, and the inevitable first problems with a 
> new version of the OS have been resolved. But now I wondering about that 
> course of action.

When you remove Stretch, you need Buster to have its own boot loader.

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Thread

Dual Boot Two Debian Versions "Stephen P. Molnar" <s.molnar@sbcglobal.net> - 2019-06-10 16:10 +0200
  Re: Dual Boot Two Debian Versions Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-06-10 20:10 +0200
  Re: Dual Boot Two Debian Versions David Christensen <dpchrist@holgerdanske.com> - 2019-06-11 04:50 +0200
  Re: Dual Boot Two Debian Versions songbird <songbird@anthive.com> - 2019-06-11 13:40 +0200
    Re: Dual Boot Two Debian Versions Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-06-11 20:30 +0200
      Re: Dual Boot Two Debian Versions "Stephen P. Molnar" <s.molnar@sbcglobal.net> - 2019-06-11 21:50 +0200
        Re: Dual Boot Two Debian Versions Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-06-12 21:20 +0200

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