Re: [Xen-devel] OSSTest -- debian-hvm-install, how to see the progress of guest auto installation

["Hu, Robert" <robert.hu@xxxxxxxxx>]

Further more, now I see debian-hvm guest boots up. But it hangs at 'Starting 
MTA'.
Is MTA necessary?
> -----Original Message-----
> From: Hu, Robert
> Sent: Friday, July 31, 2015 4:02 PM
> To: 'Ian Campbell'; ian.jackson@xxxxxxxxxxxxx; wei.liu2@xxxxxxxxxx
> Cc: xen-devel@xxxxxxxxxxxxx
> Subject: RE: OSSTest -- debian-hvm-install, how to see the progress of guest
> auto installation
> 
> > -----Original Message-----
> > From: Ian Campbell [mailto:ian.campbell@xxxxxxxxxx]
> > Sent: Friday, July 31, 2015 3:53 PM
> > To: Hu, Robert; ian.jackson@xxxxxxxxxxxxx; wei.liu2@xxxxxxxxxx
> > Cc: xen-devel@xxxxxxxxxxxxx
> > Subject: Re: OSSTest -- debian-hvm-install, how to see the progress of
> guest
> > auto installation
> >
> > On Fri, 2015-07-31 at 07:20 +0000, Hu, Robert wrote:
> > > Hi,
> > >
> > > During the hvm guest auto installation, how can I inspect its progress?
> >
> > It's serial console is logged to the qemu-dm log, something like
> > /var/log/xen/qemu-dm-$guestname.log I think.
> >
> > > Currently I encountered some problems during hvm auto-installation;
> > > after waited long time, several minutes, I vnc to it, it is black screen.
> >
> > Right, I think that's expected because the installer is running on the
> > serial console now.
> >
> > Currently the qemu-dm log is a mess of ANSI escape codes. If you "cat
> > /var/log/..." then your terminal will decode it and show the last thing on
> > the screen (hopefully an error dialog).
> Aha, fortunately, just found 'tail -f ...' output formatted ANSI chart; I can
> see its progress now.
> >
> > My series "fixes to ts-debian-hvm-install" posted to xen-devel on Monday
> > incorporates a switch to using DEBIAN_FRONTEND=text which produces a
> > more
> > useful text log from the installer (the same as is used for host kernel
> > today).
> >
> > >
> > > I'm using debian 7.2 for guest installation. And I saw Ian C. 's patch
> > > commit c60b6d20b0fd29836a224fdaf9f0d06272144b46
> > > Author: Ian Campbell <ian.campbell@xxxxxxxxxx>
> > > Date:   Mon Jul 6 14:45:12 2015 +0100
> > >
> > >     ts-debian-hvm-install: Arrange for installed guest to use a serial
> > > console
> > >
> > >     So that the guest boot will be logged somewhere useful (the
> > qemu-dm
> > >     log).
> > >
> > >     It still seems to pickup a "quiet" from somewhere, so it's not as
> > >     useful as it might be, but it is an improvement.
> > >
> > > debian 7.2 shall using kernel < 3.15,
> >
> > Debian 7 (and all point releases) is using a 3.2 kernel.
> >
> > >  not sure if this commit causes the problem I'm meeting.
> >
> > This commit will have changed where the guest console log will go but I
> > don't expect it to have caused whatever the underlying problem you are
> > seeing is.
> >
> > Ian.

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