From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4C692359.5080802@domain.hid> Date: Mon, 16 Aug 2010 13:39:05 +0200 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <4C45539B.70204@domain.hid> <4C45770F.10302@domain.hid> <4C458607.1060402@domain.hid> <4C45869D.9020501@domain.hid> <4C45CF88.20608@domain.hid> <4C691F66.7070802@domain.hid> In-Reply-To: <4C691F66.7070802@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] kernel 2.6.32.11 with xenomai 2.5.3 fails to boot on ubuntu lucid system List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Theo Veenker Cc: xenomai@xenomai.org 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.