Re: [Xen-devel] Xen doesnt recognize my root fs, while native kernel can ???

["Jun Koi" <junkoi2004@xxxxxxxxx>]

What a shame!!! I think I should go hanging myself!!!

Good bye forever! Best wishes to you and Xen project!!!!!

Jun

On 6/13/07, Petersson, Mats <Mats.Petersson@xxxxxxx> wrote:
> > -----Original Message-----
> > From: Keir Fraser [mailto:keir@xxxxxxxxxxxxx]
> > Sent: 13 June 2007 10:45
> > To: Jun Koi; Petersson, Mats
> > Cc: xen-devel
> > Subject: Re: [Xen-devel] Xen doesnt recognize my root fs,
> > while native kernel can ???
> >
> >
> > That's fine. My conclusion is that this is user error: you
> > are trying to
> > mount /boot/sda2 and you actually mean /dev/sda2.
>
> Well spotted. I just expected it to say "/dev/" rather than "/boot/".
>
> --
> Mats
> >
> >  -- Keir
> >
> > On 13/6/07 10:21, "Jun Koi" <junkoi2004@xxxxxxxxx> wrote:
> >
> > > Here is the screenshot taken with a digital camera. I hope
> > the screen
> > > is clear enough for you to see.
> > >
> > > Thanks,
> > > Jun
> > >
> > >
> > >
> > > On 6/13/07, Jun Koi <junkoi2004@xxxxxxxxx> wrote:
> > >> Hi Mats,
> > >>
> > >> On 6/13/07, Petersson, Mats <Mats.Petersson@xxxxxxx> wrote:
> > >>>
> > >>>
> > >>>> -----Original Message-----
> > >>>> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> > >>>> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf
> > Of Jun Koi
> > >>>> Sent: 13 June 2007 09:54
> > >>>> To: Keir Fraser
> > >>>> Cc: xen-devel
> > >>>> Subject: Re: [Xen-devel] Xen doesnt recognize my root fs,
> > >>>> while native kernel can ???
> > >>>>
> > >>>> On 6/13/07, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:
> > >>>>> On 13/6/07 08:49, "Jun Koi" <junkoi2004@xxxxxxxxx> wrote:
> > >>>>>
> > >>>>>>>> The point is that Xen doesnt boot in the first place,
> > >>>> so I cannot
> > >>>>>>>> provide xm dmesg!
> > >>>>>>>>
> > >>>>>>>> Below is the output from dmesg (native kernel) and
> > >>>> Dom0's .config.
> > >>>>>>>> Anything else do you need?
> > >>>>>>>
> > >>>>>>> Can you get a serial line on the machine?
> > >>>>>>
> > >>>>>> Opps, that is compicated, as I dont have a cable to do that.
> > >>>>>>
> > >>>>>> So if you have no suggestion, perhaps I must try this
> > >>>> way. But perhaps
> > >>>>>> it take more than a week, as I am away in few days.
> > >>>>>
> > >>>>> There's a decent chance that comparing the two dmesg
> > >>>> outputs will show some
> > >>>>> important deviation in the case of running on Xen that is
> > >>>> causing the boot
> > >>>>> failure. Without the failing output it's hard to know
> > where to start
> > >>>>> looking.
> > >>>>>
> > >>>>
> > >>>> I see, but can you imagine some reasons why that
> > happens?  It makes
> > >>>> absolute no sense to me.
> > >>>
> > >>> There are lots of possible reasons. The most likely is
> > that your kernel
> > >>> in the native has drivers that are not part of the Xen default
> > >>> configuration.
> > >>>
> > >>> The other very common problem is that you don't have
> > those necessary
> > >>> drivers in the "initrd" for your Xen. This is a problem
> > that is posted
> > >>> about three times a week (at least) on the Xen Users
> > mailing list [where
> > >>> this problem probably should be discussed - but I think since it's
> > >>> started here, we'll keep it here].
> > >>>
> > >>
> > >> No, that is not a reason in my case. I did it this way:
> > >> - Native kernel (2.6.18) is compiled with all the necessary drivers
> > >> built-in. That means I dont need initrd to boot my machine
> > with this
> > >> kernel. And it boots well.
> > >> - I copied the .config of native kernel above to Dom0, and compile
> > >> Dom0 with this option. (Of course before compiling, I enabled Xen
> > >> option, as you can see in the .config of Dom0 I sent in the last
> > >> mail). Again this time I dont need initrd.
> > >>
> > >> So it is logical that Dom0 must boot, but it fails
> > actually. That is
> > >> why I find the situation very strange.
> > >>
> > >>
> > >>>> I have found that my machine has no serial port, so
> > perhaps I must buy
> > >>>> a serial card to debug this problem. Wonder if there is
> > another way to
> > >>>> avoid that (?)
> > >>> If you have a digital camera and you add "noreboot" to
> > the commandline
> > >>> of "xen.gz" in your grub configuration, maybe you can
> > upload (to some
> > >>> photo-web-site or such) a screen-shot of the final few
> > lines of the boot
> > >>> and send a link to the list - that may not give all
> > clues, but at least
> > >>> it will indicate what's going on.
> > >>
> > >> OK, I will do that, as it is not desired to buy a serial card :-)
> > >>
> > >> Thanks,
> > >> Jun
> > >>
> >
> >
> >
> >
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