Console of P2V?

vrms vrms at netcologne.de
Mon May 24 10:22:29 UTC 2021



On 24.05.21 03:12, W wrote:
> well libvirt has to know about the serial port and attach it to the
> console.
>
> do you have something like this in your XML file?
>
>
>   <serial type='pty'>
>       <source path='/dev/pts/0'/>
>       <target type='isa-serial' port='0'>
>         <model name='isa-serial'/>
>       </target>
>       <alias name='serial0'/>
>     </serial>
>     <console type='pty' tty='/dev/pts/0'>
>       <source path='/dev/pts/0'/>
>       <target type='serial' port='0'/>
>       <alias name='serial0'/>
>     </console>

no, I have:

    <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 can edit this with *virsh edit [domain]* but the get the same results
as before.
When I look into the file thereafter, all edits are gone even though I
got a success message with the editing




>
>
>
> On 5/23/2021 12:52 AM, vrms wrote:
>
>> hi William
>>
>> On 22.05.21 23:59, William wrote:
>>> I generally use
>>>
>>> GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=ttyS0,115200n8"
>>> and redo grub.cfg (i.e. update-grub, grub2-mkconfig)
>> thanks for the pointer.
>>
>> I literally ran in the guests commandline
>>
>>      GRUB_CMDLINE_LINUX_DEFAULT="console=tty0 console=ttyS0,115200n8"
>>      sudo update-grub
>>
>> which did change anything to the behavior on the hosts cli
>>
>>     Connected to domain '[domain]'
>>     Escape character is ^] (Ctrl + ])
>>
>> and then nothing
>>
>> so ... what is the error I am making?
>>
>>
>>
>>
>>
>>
>>> On 5/22/2021 2:49 PM, Ken D'Ambrosio wrote:
>>>>> On 22.05.21 18:52, Ken D'Ambrosio wrote:
>>>>> ... apologies if this isn't quite the right list, I tried to get the
>>>>> right one.
>>>>> But, my problem: I'm firing up a Centos 6.5 box > with virt-install,
>>>>> [...] and
>>>>> it boots fine, etc., etc., but I can't get to the console except
>>>>> through vnc;
>>>>> "virsh console" just shows a blank screen.
>>>>> 1. I think this is absolutely the right list for your issue
>>>> Yay. :-)
>>>>
>>>>> 2. is it really blank? or something like
>>>>>
>>>>>     Connected to domain '[domain]'
>>>>>     Escape character is ^] (Ctrl + ])
>>>> Okay, it *does* say those things -- but that's all it says. <CR> gets
>>>> me nowhere, as opposed to the other KVM hosts we have running.
>>>>
>>>>> 3. If I am not mistaken the guest needs to be configured in a
>>>>> certain way for
>>>>> virsh console [domain] to work. I can't say how though
>>>> Hmmm... well, if anyone knows, I'm all ears.
>>>>
>>>> Thanks for the reply!
>>>>
>>
>
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