Re: How do I rebuild Grub/Boot/initramfs from a Live USB?

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On Sat, 29 Oct 2022 11:39:00 -0700
stan via users <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

> On Sat, 29 Oct 2022 14:09:26 -0400
> Felix Miata <mrmazda@xxxxxxxxxxxxx> wrote:
> 
> > stan via users composed on 2022-10-29 09:21 (UTC-0700):
> >   
> > > UEFI only allows a single
> > > version of fedora (or any OS) to boot without some alterations
> > > that are complicated     
> > 
> > Besides making GRUB_DISTRIBUTOR= in /etc/default/grub a unique
> > string and applying the change, what are those alterations?  
> 
> I did some investigation of sdboot, which allows multiple versions to
> boot uefi from the same efi partition, and it didn't seem trivial.
> 
> I hadn't even looked into creating a new partition under /boot/efi/EFI
> with a unique name, and what would be required for it to work.  Is it
> really as simple as changing GRUB_DISTRIBUTOR= in /etc/default/grub,
> and everything else happens automatically?

How would dnf know about that changed name in order to install the shim?
How would the OS be installed initially, since the defaults are for the
current location?  Wouldn't the install image have to have that built
in before install?  It seems to me that there would be a default
install, then adding the change to the grub default, and then moving
the /boot/efi/EFI/fedora to /boot/efi/EFI/unique_name.  I'm not sure
what would happen if an update came in for the shim package.  Would dnf
install it in the old default location or the new location?
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