Re: New Grub2 verses Debian 9.5 -boots slow and strange?

[Richard Owlett]

On 10/20/2018 09:10 AM, Pascal Hambourg wrote:
> Le 20/10/2018 à 15:10, Richard Owlett a écrit :
> > I experiment multiple configurations on my machine.
> > For my use case the Debian installer has two annoying "features".
> (...)
> > 1. If installer installs grub to boot partition it always gives priority
> >     to the most recent install. *NOT* desirable when experimenting ;}
>
> What do you mean by "install grub to boot partition" ?

Wrong word.
I forget the installer's phrasing. But there is a point where it asks 
permission to install to a default location on the primary hard disk.

> Do you mean that 
> you share the same /boot among multiple installations ?

No.

> It seems desirable to me that GRUB gives priority to the system which 
> installed it. What may be less desirable is that the latest GRUB takes 
> precedence over the existing ones. How to avoid it depends primarily on 
> whether the system boots in BIOS/legacy or UEFI mode.

I do not have any UEFI machines.

> > 2. If you want a swap partition used, there appears to be noway of using
> >     the existing SWAP without changing its UUID - thus breaking all other
> >     installs :<
>
> Indeed. Note that an existing system can be set up to not rely on the 
> swap UUID but on another persistent identifier such as PARTUUID, LABEL 
> or PARTLABEL (the latter being available only on GPT). Otherwise, I 
> suggest not to use the existing swap when installing a new system so 
> that its UUID does not change, and add it afterwards in the new system 
> config files instead of fixing config files on all other installed systems.

I do it only on the new install.

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