Theo Veenker wrote:
> Theo Veenker wrote:
>> Gilles Chanteperdrix wrote:
>>> Theo Veenker wrote:
>>>> Stefan Kisdaroczi wrote:
>>>>> On 20.07.2010 09:43, Theo Veenker wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I want to upgrade all our PC's from Ubuntu hardy to lucid and in
>>>>>> the process
>>>>>> I'm also going from kernel 2.6.29.5 with Xenomai 2.4.8 to kernel
>>>>>> 2.6.32.11
>>>>>> with Xenomai 2.5.3.
>>>>>>
>>>>>> I first built and tested the 2.6.32.11 kernel with 2.5.3 on my
>>>>>> hardy system
>>>>>> and all went fine. But the problem is it just doesn't run on the
>>>>>> lucid distro.
>>>>>> However the vanilla kernel runs fine. I also tried with a config
>>>>>> based on the
>>>>>> ubuntu lucid config, with relevant modules compiled in (I don't use
>>>>>> initrd).
>>>>>>
>>>>> Are you sure it's not initrd related ?
>>>>>
>>>>> After installing the kernel with dpkg --install i had to run
>>>>> '# update-initramfs -c -k all' and '# update-grub' manually.
>>>>> This is not necessary on debian lenny/squeeze and worked
>>>>> (if I remember correctly) with ubuntu karmic too.
>>>>> Check in your grub config if there is a initrd entry.
>>>> Unfortunately this doesn't make a difference. Created initrd for
>>>> regular and
>>>> kernel with xenomai; grub config OK. But still the regular kernel
>>>> works and
>>>> the other one gives me just a black screen.
>>> Have you tried removing "quiet" from the kernel command line?
>> Yes I always do. It somehow hangs before outputting anything. In the
>> meantime
>> I have recompiled again with BLK_DEV_INITRD set and running
>> update-initramfs etc
>> as Stefan suggested. No effect. When I install this kernel on an Ubuntu
>> hardy
>> system it works as expected; on Ubuntu lucid it does not. Could it be
>> due to
>> this plymouth crap?
>
> (back from holliday) I really like to get my kernel working. I just compiled
> a kernel 2.6.32.11 with lots of stuff (sound etc) disabled. The regular kernel
> works fine, with adeos-ipipe-2.6.32.11-x86-2.6-03.patch patch applied it does
> not work for Ubuntu 10.04 distro (blank screen) but *does work* for Ubuntu
> 8.04.
> What could be the cause of this weird problem? It must be something very early
> in the boot process that's different between the distro versions that makes
> the
> kernel work in one environment and not in the other.
>
> I'm posting my latest config in the hope someone sees that I screwed up
> something there.
It is difficult to know what is going on without being able to reproduce
this issue. However, a few suggestions:
- you have several consoles enabled, including the "dummy" console,
please try and only enable the one you want output from, or use the
kernel parameter "console", for instance console=ttyS0,115200 if you
want output on the serial port;
- have you tried Xenomai 2.5.4 and the Adeos patches it contains?
--
Gilles.
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