Re: Is root kernel parameter expected to be the first one or something?

[Piotr Hosowicz <piotr@hosowicz.com>]

Randy Dunlap wrote:
> On Tue, 30 Mar 2010 00:44:28 +0200 Piotr Hosowicz wrote:
> 
>> Randy Dunlap wrote:
>>> On Tue, 30 Mar 2010 00:32:42 +0200 Piotr Hosowicz wrote:
>>>
>>>> Randy Dunlap wrote:
>>>>> On Mon, 29 Mar 2010 22:41:48 +0200 Piotr Hosowicz wrote:
>>>>>
>>>>>> Randy Dunlap wrote:
>>>>>>> On Mon, 29 Mar 2010 22:16:29 +0200 Piotr Hosowicz wrote:
>>>>>>>
>>>>>>>> Hello,
>>>>>>>>
>>>>>>>> Today I had built a new next kernel with these parameters. I did not get 
>>>>>>>> what I expected
>>>>>>> I don't think I understand your question.
>>>>>>> What did you expect?
>>>>>> I expected higher resolution console, smaller font etc
>>>>> Boy was I confused.  I thought that your question was about the root=
>>>>> kernel boot parameter.
>>>>>
>>>>> Well, there are several questions to be asked.  and one more comment.
>>>>>
>>>>> 1.  what video (framebuffer) driver are you using?
>>>> Ashamed to say, but I do not know. vga=791 works perfectly when I 
>>>> specifiy it via GRUB modification, either during pre-booting phase or in 
>>>> menu.lst. I thought that it would work if I enable it by the oprions I 
>>>> provided in the previous message.
>>> That does sound, hm, suspicious.
> 
> 
> OK, the above is the main problem, right?
> If so, I'll try to find time to test it.

aapi205:/usr/src/linux# gzip -cd /proc/config.gz | grep -A 1 vga=791
CONFIG_CMDLINE="root=/dev/sda2 ro quiet vga=791"
CONFIG_CMDLINE_OVERRIDE=y
aapi205:/usr/src/linux# cat /proc/cmdline
root=/dev/sda2 ro quiet vga=791

First if all I tried to test whether the overriding code works at all, 
and it seems it works, I am now booted having edited 
root=/dev/nonexistent at GRUB prompt, and it seems that the values set 
at build time have overriden values set at GRUB prompt. But the vga=791 
parameter does not work at all, I have the usual console, with big 
characters.

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