Re: [Xen-users] dom0 pvh successfull, but no console

[Juergen Gross <jgross@xxxxxxxx>]

On 27.06.19 15:53, Éliás Tamás wrote:
> Hi all.
>
> I have an ubuntu 18.04 LTS with edge kernel (v5), and I set up xen with
> these options:
>
> GRUB_CMDLINE_LINUX_DEFAULT="nomodeset nosplash quiet"
> GRUB_CMDLINE_LINUX="ipv6.disable=1"
> GRUB_CMDLINE_XEN_DEFAULT="dom0=pvh dom0_mem=4096M,max:4096M
> dom0_max_vcpus=4 dom0_vcpus_pin"
>
> without dom0=pvh everything works as expected. WITH dom0=pvh I have
> network and I can SSH on the server, but I cannot see anything on the
> screen. keystrokes via the keyboard are going in. The monitor does not
> turn into sleep, but it is active, but completely blank. Not even a
> cursor blinking.
>
> I guess in pvh0 mode I should add something to the boot line to have the
> phisical console enabled. Unfortunately both console=vga and
> console=hvc0 turned to be efectless.
>
> Does anyone has idea how can I bring back the local login screen (tty
> console) while using dom0=pvh?
>
> Also, for some reason I still see the qemu process running (even tough
> that I should not need it ut I should not need it for dom0 pvh):
>
>   /usr/bin/qemu-system-i386 -xen-domid 0 -xen-attach -name dom0
> -nographic -M xenpv -daemonize -monitor /dev/null -serial /dev/null
> -parallel /dev/null -nodefaults -no-user-config -pidfile
> /var/run/xen/qemu-dom0.pid
This qemu process is active even with a PV-dom0. It is just used to be
able to look into guest disk images for support of pygrub.


Juergen

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