Comment 180 for bug 1886148

Hi,

Leó Kolbeinsson wrote:
> Booting in minimal device on Lenovo V14 fails in all modes [...]
> Tested on Acer machine - media recognized and boots to grub prompt in all
> modes/BIOS/UEFI/UEFI+secure boot.

I assume that this was the grub-mkrescue ISO. Right ?

It is a bit a surprise that Secure Boot works on the Acer.
But that it absolutely does not work on the Lenovo V14 indicates a general
problem with GRUB.
If my assumption about the ISO being an unaltered grub-mkrescue ISO, then
we should consider to forward this info to GRUB's Ubuntu maintainers and
in the end to grub-devel mailing list.

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> [...] on the Lenovo V14 IIL box [...]
> Manjaro KDE Minimal and openSUSE Leap KDE - both fail to
> boot in all boot modes.

And what about
  https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-10.6.0-amd64-netinst.iso
(~ 350 MB, ISOLINUX for PC-BIOS, GRUB2 for EFI, barely legal partition
 table with low address of EFI partition.)

Inspection results:

manjaro-kde-20.1.1-201001-linux58.iso :
Uses GRUB2 for PC-BIOS and EFI. The EFI partition is appended after ~ 3 GB.
Much like what 20201008/groovy-desktop-amd64.iso has.

openSUSE-Leap-15.0-KDE-Live-x86_64-Current.iso:
ISOLINUX for PC-BIOS, GRUB2 for EFI, The EFI partition is appended after
~ 900 MB. Except the ISOLINUX stuff it is like 20201008/groovy.

openSUSE-Leap-15.2-KDE-Live-x86_64-Media.iso:
GRUB2 for PC-BIOS and EFI. Elsewise like 15.0 and 20201008/groovy.

openSUSE-13.1-NET-x86_64.iso would be interesting. It has an EFI partition
with very low start address. (Kiwi's swallow-your-brother stunt.)

Have a nice day :)

Thomas