On Fri, Aug 23, 2019 at 12:59 PM John Harris <joh...@splentity.com> wrote:
>
> GRUB does not have the ability to halt the system on all architectures, but it
> does on most. That said, there are some things to consider:
>
> If GRUB was able to load the kernel and initrd/initramfs image, even if it's
> corrupt, it will execute that. At this point, GRUB is no longer running.

GRUB verifies the signature of the kernel before it is booted, in the
Secure Boot enabled case.

>
> Do we really want to have no indication that something went wrong, and just
> poweroff the system, upon a failed boot? How is that a good idea for any
> system, servers, workstations or laptops?

a. Press any key before the timeout and it won't shutdown
b. Power back on, and don't walk away, so you can press any key before
the timeout, and it won't shut down

The only way you're going to troubleshoot bootloader problems is
having the equivalent of physical access.

-- 
Chris Murphy
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