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Re: UEFI refusing NVRAM writes, breaking GRUB install and upgrade



Thanks a lot, this is very useful!

 - vinceh121

On 9/18/22 13:42, Steve McIntyre wrote:
On Sat, Sep 17, 2022 at 03:07:29AM +0200, vinceh121 wrote:
Thanks, this works!

Is there a way to set this option during installation on a netinst image?

Yes! You can switch to expert mode for installation and then
grub-efi-$ARCH will ask you these questions. Or you can add these
options using a preseed, tweaking the following settings to change
from the default answers.

### Description: Force extra installation to the EFI removable media path?
#   Some EFI-based systems are buggy and do not handle new bootloaders correctly.
#   If you force an extra installation of GRUB to the EFI removable media path,
#   this should ensure that this system will boot Debian correctly despite such a
#   problem. However, it may remove the ability to boot any other operating
#   systems that also depend on this path. If so, you will need to make sure that
#   GRUB is configured successfully to be able to boot any other OS installations
#   correctly.
# d-i grub2/force_efi_extra_removable boolean false

### Description: Update NVRAM variables to automatically boot into Debian?
#   GRUB can configure your platform's NVRAM variables so that it boots into
#   Debian automatically when powered on. However, you may prefer to disable
#   this behavior and avoid changes to your boot configuration. For example,
#   if your NVRAM variables have been set up such that your system contacts a
#   PXE server on every boot, this would preserve that behavior.
# d-i grub2/update_nvram boolean true

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