select menu item depending on frontkey

select menu item depending on frontkey

[Joachim Mammele]

Hi,
accrding to Vladimirs hints I adapted my grub-configuration.

What I changed in /boot/grub/grub.cfg is the following: (I'm aware that 
editing grub.cfg isn't the best option as it gets rewritten on executing 
the config-scripts)
(the whole file can be found here http://pastebin.com/K57RHjwn)

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
   load_env
fi

#unsigned char bits9, keybits;

set keybits = "32";
grub_outb(keybits, 0x20A);
grub_outw(-16832, 0x20C);
set bits9 = grub_inb(0x209);

echo "bits9= "
echo bits9

if (bits9 == 64)
     set default="1"
if (bits9 == 32)
     set default="2"
if (bits9 == 16)
     set default="3"
else
     set default="0"

On starting grub I see some error log-messages but before I can read 
them the grub-menu appears.
I'm using ubuntu 10.04 (Kernel 2.6.32-40)

Any help would be appreciated.

Greetings
Joachim

Re: select menu item depending on frontkey

[Vladimir 'φ-coder/phcoder' Serbinenko]

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On 23.04.2012 14:54, Joachim Mammele wrote:
> Hi,
> accrding to Vladimirs hints I adapted my grub-configuration.
>
> What I changed in /boot/grub/grub.cfg is the following: (I'm aware
> that editing grub.cfg isn't the best option as it gets rewritten on
> executing the config-scripts)
> (the whole file can be found here http://pastebin.com/K57RHjwn)
>
> ### BEGIN /etc/grub.d/00_header ###
> if [ -s $prefix/grubenv ]; then
>   load_env
> fi
>
> #unsigned char bits9, keybits;
>
> set keybits = "32";
> grub_outb(keybits, 0x20A);
> grub_outw(-16832, 0x20C);
> set bits9 = grub_inb(0x209);
>
> echo "bits9= "
> echo bits9
>
> if (bits9 == 64)
>     set default="1"
> if (bits9 == 32)
>     set default="2"
> if (bits9 == 16)
>     set default="3"
> else
>     set default="0"
>
> On starting grub I see some error log-messages but before I can read
> them the grub-menu appears.
> I'm using ubuntu 10.04 (Kernel 2.6.32-40)
>
> Any help would be appreciated.
>
grub.cfg is written in GRUB bash-like, not C. Modules are in C.
> Greetings
> Joachim
>
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> https://lists.gnu.org/mailman/listinfo/grub-devel
>


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko



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Re: select menu item depending on frontkey

[Joachim Mammele]

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Okay,
I modified the code. But still getting some error messages on the 
beginning of starting grub (and later on: "error: file not found, you 
need to load the kernel first")

#set keybits = "32";
grub_outb(32, 0x20A);
grub_outw(-16832, 0x20C);
bits9 = grub_inb(0x209);

echo "bits9= "
echo ${bits9}

if [${bits9} = 64]; then
     set default="1"
elif [${bits9} = 32]; then
     set default="2"
elif [${bits9} = 16]; then
     set default="3"
else
     set default="0"
fi

Am 23.04.2012 14:56, schrieb Vladimir '?-coder/phcoder' Serbinenko:
> On 23.04.2012 14:54, Joachim Mammele wrote:
>> Hi,
>> accrding to Vladimirs hints I adapted my grub-configuration.
>>
>> What I changed in /boot/grub/grub.cfg is the following: (I'm aware
>> that editing grub.cfg isn't the best option as it gets rewritten on
>> executing the config-scripts)
>> (the whole file can be found here http://pastebin.com/K57RHjwn)
>>
>> ### BEGIN /etc/grub.d/00_header ###
>> if [ -s $prefix/grubenv ]; then
>>    load_env
>> fi
>>
>> #unsigned char bits9, keybits;
>>
>> set keybits = "32";
>> grub_outb(keybits, 0x20A);
>> grub_outw(-16832, 0x20C);
>> set bits9 = grub_inb(0x209);
>>
>> echo "bits9= "
>> echo bits9
>>
>> if (bits9 == 64)
>>      set default="1"
>> if (bits9 == 32)
>>      set default="2"
>> if (bits9 == 16)
>>      set default="3"
>> else
>>      set default="0"
>>
>> On starting grub I see some error log-messages but before I can read
>> them the grub-menu appears.
>> I'm using ubuntu 10.04 (Kernel 2.6.32-40)
>>
>> Any help would be appreciated.
>>
> grub.cfg is written in GRUB bash-like, not C. Modules are in C.
>> Greetings
>> Joachim
>>
>> _______________________________________________
>> Grub-devel mailing list
>> Grub-devel@gnu.org
>> https://lists.gnu.org/mailman/listinfo/grub-devel
>>
>
>
>
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> https://lists.gnu.org/mailman/listinfo/grub-devel


-- 
Joachim Mammele
Egelhaafstrasse 3
70565 Stuttgart
Mobil: 0162/4603792
E-Mail: mail@jomammele.de


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