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Re: [Xen-devel] [Xen-users] Fedora 17 Dom-U booting issue



On Sun, Oct 21, 2012 at 12:03:47AM +0530, kk s wrote:
>    Hi,
>    Looks like the serial='pty' parameter already passed which doesn't work.
>    Though I can't add do 'loglevel=8 initcall_debug console=ttyS0,115200
>    debug' since its Xen HVM and without booted the VM we can't add anything
>    in grub.conf file.
>

Open the VNC console for the HVM guest and edit grub settings / kernel 
parameters? 


>    The default kernel that comes from Fedora iso is booting fine and this
>    latest kernel only having issue. I'll try with serial=pty later today and
>    provide you the result.
>    Fyi. The fedora version designed to install as pv-on-hvm itself which
>    means it uses xen network and disk devices. So I already tried to pass
>    netfront type and tried pci passthrough none of it helped.
>    I guess its something issue with Fedora kernel.

You can control if pv-on-hvm is used from dom0, see:
http://wiki.xen.org/wiki/Xen_Linux_PV_on_HVM_drivers

-- Pasi

>    On Fri, Oct 19, 2012 at 7:51 PM, Konrad Rzeszutek Wilk
>    <[1]konrad.wilk@xxxxxxxxxx> wrote:
> 
>      On Thu, Oct 18, 2012 at 05:21:06PM +0100, Stefano Stabellini wrote:
>      > On Thu, 18 Oct 2012, Ian Campbell wrote:
>      > > On Thu, 2012-10-18 at 14:42 +0100, Stefano Stabellini wrote:
>      > > > On Wed, 17 Oct 2012, Ian Campbell wrote:
>      > > > > Adding xen-devel and the relevant maintainers.
>      > > > >
>      > > > > On Tue, 2012-10-16 at 20:24 +0100, kk s wrote:
>      > > > > > Hi Folks,
>      > > > > >
>      > > > > >
>      > > > > > I have upgraded Fedora 16 to 17 on one of Xen HVM Dom-U and it
>      refuses
>      > > > > > to boot fine and getting the below error on console,
>      > > > > >
>      > > > > >
>      > > > > > --------
>      > > > > > Booting 'Fedora (3.6.1-1.fc17.x86_64)'
>      > > > > >
>      > > > > >
>      > > > > > Loading Fedora (3.6.1-1.fc17.x86_64)
>      > > > > > Loading initial ramdisk ...
>      > > > > > [   0.000000] Cannot get hvm parameter 18: -22!
>      > > > >
>      > > > > HVM parameter 18 is HVM_PARAM_CONSOLE_EVTCHN.
>      > > >
>      > > > -22 is EINVAL, that Xen would return only if:
>      > > >
>      > > > - the requested parameter is out of range
>      > > > this is not the case, 18 < 30
>      > >
>      > > The hypervisor here is 3.4.3 where the largest hvm param is:
>      > > $ grep define.HVM_PARAM
>      xen-3.4-testing.hg/xen/include/public/hvm/params.h | sort -k3 -n | tail
>      -n 3
>      > > #define HVM_PARAM_ACPI_S_STATE 14
>      > > #define HVM_PARAM_VM86_TSS     15
>      > > #define HVM_PARAM_VPT_ALIGN    16
>      >
>      > OK, we know that the console is not working because it is not provided
>      > by the hypervisor.
>      > However that shouldn't prevent the domain from booting, the emulated
>      > serial should work fine.
> 
>      Maybe it does? Mr. KK can you boot your guest with this in guest config:
> 
>      serial='pty'
> 
>      and on your Linux line, do 'loglevel=8 initcall_debug
>      console=ttyS0,115200 debug' please?
> 
> References
> 
>    Visible links
>    1. mailto:konrad.wilk@xxxxxxxxxx

> _______________________________________________
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> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel


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