Re: [Xen-users] xm console command doesn't work

[Stephan Seitz <s.seitz@xxxxxxxxxxx>]

Hi,

if "running console environment" means, you can see the kernel booting and/or services starting, your domU just doesn't spawn a tty on hvc0.

ssh into your domU (or mount the domU root filesystem), navigate to your domU /etc/init/
and
cat tty1.conf | sed 's,tty1,hvc0,g' > hvc0.conf
reboot your domU and you'll see a login prompt.


Am Sonntag, den 05.08.2012, 12:15 -0300 schrieb José Eduardo França:
>     Ok
>     
>     first: when I do command "xm create guest.cfg -c" I can run console enviroment. Then when I do command "xm console guest" the terminal doesn't shown nothing. No Errors and I can't run others commands.
>     
>     
>     2012/8/3 Ian Tobin <itobin@xxxxxxxxxxxxx>
> >         Hello,
> >         
> >     

> >         
> >          
> >         
> >         When you say it doesn’t work, what isn’t working, errors?
> >         
> >          
> >         
> >         Ian
> >         
> >          
> >         
> >         From: José Eduardo França [mailto:jefranca@xxxxxxxxx] 
> >         Sent: 03 August 2012 21:41
> >         To: Stephan Seitz
> >         Cc: Ian Campbell; Lukas Laukamp; xen-users@xxxxxxxxxxxxx; Ian Tobin
> >         Subject: Re: [Xen-users] xm console command doesn't work
> >         
> >     
> >          
> >         
> >         Hi all,
> >         
> >         I can't still resolve.
> >         How Ian Campbell said the xl console command didn't work.
> >         
> >         Well... I tried the script /etc/init/hvc0.conf that Lukas suggested and my guest.cfg was changed to:
> >             name = "ubuntu-pv"
> >         
> >             memory = 256
> >             disk = ['phy:/dev/labprog/ubuntu-pv,xvda,w']
> >         
> >     
> >             vif = [' ']
> >         
> >             bootloader = "pygrub"
> >             extra = "console=hvc0"
> >         
> >         
> >     
> >         
> >         But, I can't run xm console command. Is there other idea?
> >         Thanks
> >         
> >     
> >         2012/8/2 Stephan Seitz <s.seitz@xxxxxxxxxxx>
> >         
> >     
> >         
> >         
> >         Am Donnerstag, den 02.08.2012, 08:16 +0100 schrieb Ian Campbell: 
> >         
> >     
> > > On Wed, 2012-08-01 at 20:59 +0100, Lukas Laukamp wrote:
> > > > 
> > > > he could also use the xl toolstack but the simple misstake is that the
> > > > hvc0.conf isn't needed in Dom0. The hvc0.conf is needed inside of the
> > > > DomU and in the config file must be set extra = 'console=hvc0' so that
> > > > the console kernel option for hvc0 is set. So the DomU can boot into a
> > > > hvc0 console and than xm and xl can use the console.
> > >  
> > > pygrub should be getting the console=hvc0 from the grub cfg and
> > > hvc0.conf ought to already exist.
> > >  
> > > If Ubuntu isn't setting these up by default during install when running
> > > under Xen then this should be reported as a bug to Ubuntu.
> > >  
> > > I'm not familiar with current Ubuntu so I don't know if these are
> > > expected to be there i.e. I don't know if this is a wishlist/new-feature
> > > bug or just a bug in functionality which is expected to Just Work
> > > already.
> > >  
> > > Ian.
> > >  
> > >         
> >     
> >         Current (12.04 LTS) Ubuntu, respectively the 3.2.0 linux-virtual Kernel as well as the grub-legacy-ec2 are
> >         aware of hvc0.
> >         
> >         I think the source of these console problems are the configurable different presets. One could use tty0
> >         as well as tty1, maybe hvc0 or xvc0 or both of them. The domU I'm currently peeking into spawns tty0
> >         and hvc0 with tty0 connected to the "serial" xl console and hvc0 connected to vfb/vnc setting. But that
> >         can't be predicted, it's easy to configure it the opposite way.
> >         
> >         From my point of view, the definition of virtualization namespaces (hvcN, xvcN, xvdMN) jumped in far to late.
> >         There have been huge clusters build before one was even thinking about hvc0.
> >         
> >         Just my 2 cents, and I'm sorry that this won't help the OP to solve his issue easily.
> >         
> >         Cheers,
> >         
> >         Stephan
> >         
> >         
> >         
> >         
> >     
> >          
> >         
> >         
> >     
>     
> _______________________________________________
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