Re: grub2: Patch to correct hidden timeout behavior

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 22.11.2013 21:34, Andreas Cadhalpun wrote:
> Hi,
> 
> I'm using Debian with grub version 2.00-20.
> My /etc/default/grub configuration contains the following lines:
> GRUB_TIMEOUT=-1
> GRUB_HIDDEN_TIMEOUT=3
> 
> Expected behavior: When booting, grub should display a three second
> countdown and if no key is pressed, boot the default grub entry, after
> the countdown finishes.
> 
> Current behavior: When booting, grub displays a three second countdown
> and if no key is pressed, the grub menu is shown, after the countdown
> finishes.
> 
> The problem lies in the 00_header.in script [1], specifically:
> if sleep$verbose --interruptible ${1} ; then
>   set timeout=${2}
> fi
> 
AFAIR this behaviour is documented and reason for it are platforms
without keystatus. Just set GRUB_TIMEOUT to 0 to have behaviour that you
want.
> This just always sets the countdown to GRUB_TIMEOUT, even if the sleep
> is not interrupted. I think it should be something like:
> 
> if sleep$verbose --interruptible ${1} ; then
>   set timeout=0
> else
>   set timeout=${2}
> fi
> 
> I created a patch to fix this (see attachment). Please include the patch.
> 
> Best regards,
> Andreas
> 
> 
> 1: http://git.savannah.gnu.org/cgit/grub.git/tree/util/grub.d/00_header.in
> 
> 
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>

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