Re: Encrypting boot partition Libvirt not showing the OS booting up

On 10/13/2020 10:58 AM, Peter Krempa wrote: > On Tue, Oct 13, 2020 at 10:40:11 +0200, john doe wrote: >> On 10/13/2020 8:50 AM, john doe wrote: > > [...] > >>> Thank you, I have now isolated the command generated by libvirt. >>> Starting this command from a script, a vnc server is started. >>> >>> Is libvirt internally using vnc connection? >>> >> >> It looks like the issue is that the libvirt command pass to qemu is >> using '-display none' where it should be '-nographic'. > > That is deliberate: > > commit 7a97676b968bcdf60fb987afe6308bc0b4ab9cd3 > Author: Paolo Bonzini <pbonzini(a)redhat.com&gt; > Date:   Tue Jul 5 14:35:28 2016 +0200 > >      qemu: generate -display none > >      This is preferrable to -nographic which (in addition to disabling >      graphics output) redirects the serial port to stdio and on OpenBIOS >      enables the firmware's serial console. > > > We don't want to use stdio serial port at all, but rather explicitly > defined ones exposed internally such as: > >      <serial type='pty'> >        <target type='isa-serial' port='0'> >          <model name='isa-serial'/> >        </target> >      </serial> >      <console type='pty'> >        <target type='serial' port='0'/> >      </console> > > > I've verified that once I add the suggested useserial attribute: > >    <os> >      <type arch='x86_64' machine='pc-i440fx-2.9'>hvm</type> >      <bootmenu enable='yes'/> >      <bios useserial='yes'/> >    </os> > > to one of my VMs I can see the console when started via virsh start > --console: > > $ virsh start --console upstream > Domain upstream started > Connected to domain upstream > Escape character is ^] (Ctrl + ]) > > > iPXE (http://ipxe.org) 00:03.0 C100 PCI2.10 PnP PMM+3E7835A0+3E6E35A0 > C100 > > > > > > iPXE (http://ipxe.org) 00:08.0 C200 PCI2.10 PnP PMM+3E6D25A0 3E6E35A0 > C200 > > > > > Press ESC for boot menu. > > To summerise: After having installed the vm with virt-install, if you encrypt the boot partition, you may need to add the below two lines in the os section of the domain xml:     <bootmenu enable='yes'/>     <bios useserial='yes'/> Then start the guest with the below command: virsh start $vm --console