I also faced similar issue with Ubuntu 10.4 LTS (Lucid Lynx), Linux Version 2.6.32.15 and Xenomai 2.5.4 and it hangs before outputting anything (just blank screen). However it works sometime if you try to reboot it multiple times but I am not sure what's the reason for this!!!!
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Stefan Kisdaroczi Sent: Monday, August 16, 2010 1:40 PM To: [email protected] Subject: Re: [Xenomai-help] kernel 2.6.32.11 with xenomai 2.5.3 fails to boot on ubuntu lucid system On 16.08.2010 13:22, 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. Have you tried multiple times to boot this kernel? On a debian squeeze box i had the problem with 2.6.32.11 and 2.5.3 that the kernel wanted to start only once of 3-5 tries. Screen stayed just blank (without quiet) just after booting. Looked like a early timing problem. I have upgraded this box to 2.6.32.15 and 2.5.4 and the problem seems gone. Stefan > I'm posting my latest config in the hope someone sees that I screwed > up something there. > > Theo > > > > _______________________________________________ > Xenomai-help mailing list > [email protected] > https://mail.gna.org/listinfo/xenomai-help > _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
