Bug#1032435: installation-reports: Fails to install GRUB bootloader

[John Talbut <jt@dpets.uk>]

Thanks, Pascal.

Install in /dev/sda was just an example, it is the one that the 
installer suggests.  I have tried /dev/nvme1n1, /dev/nvme1n1p1 (the ESP 
partition) and /dev/nvme1n1p2 (the boot partition) all with the same 
result: The rescue operation 'grub-reinstall' failed with exit code 1

I gave up trying to get the legacy system to work after it failed 
following updating from bullseye to bookworm by changing sources.list 
and I am attempting to do a fresh install for an EFI boot.

On 06/03/2023 19:57, Pascal Hambourg wrote:
> Hello John,
>
> On 06/03/2023 at 18:19, John Talbut wrote:
> > It is not clear where to install it but wherever I try I come up with 
> > a message "Unable to install GRUB in /dev/sda" (or the equivalent in 
> > other partitions).
>
> /dev/sda is the USB stick which contains the installer. You cannot 
> install GRUB there.
>
> Does the installer boot in EFI or legacy mode ?
> grub-installer prompts in which device to install GRUB when installing 
> for legacy/BIOS boot. It means either the installer booted in legacy 
> mode or booted in EFI mode but you chose to revert to legacy boot after 
> being warned (maybe wrongly) about an existing system set up for legacy 
> boot. When installing GRUB for EFI boot, it automatically chooses one of 
> the selected EFI partitions.
>
> The partition layout on /dev/nvme1n1 is set up for EFI boot. GRUB could 
> be installed for legacy boot in /dev/nvme1n1, but it would not be best 
> because there is not "BIOS boot" (bios_grub) partition.